g An Hfr strain is produced when Select one: A. an F episome is transferred to a new cell. B. an F episome leaves the E. coli chromosome. C. an F episome leaves the host chromosome and removes some of the host chromosome. D. an F episome integrates into the E. coli chromosom

Answers

Answer 1

Answer:

A. an F episome is transferred to a new cell.

Explanation:

Hfr strains arise from the integration of the plasmid into the bacterial cell in one of several ways such as the recombination of events. Most commonly are formed by the UV-induced integration of E coil F factor. It tries to transfer a copy of the F factors as well the entire chromosome to the recipient bacterium.

Related Questions

Viral or bacterial germs that invade body cells are called _____.


phagocytes


pathogens


white blood cells


lymphocytes

Answers

White blood cells is the answer

Table sugar is an example of which molecule

Answers

Answer:

Disaccharide

Explanation:

It is a disaccharide, a molecule composed of two monosaccharides: glucose and fructose. Sucrose is produced naturally in plants, from which table sugar is refined. It has the molecular formula C12H22011.

Answer:

table sugar is example of glucose. It has the molecular formula C12H22O11.

Why do you think type 2 diabetes occurs so much more often than other inheritable diseases? Propose a hypothesis for why this allele has not been eliminated by natural selection.
Which type of species best describes a mouse: opportunistic or equilibrium? Explain why a mouse or rat population would continuously grow while other mammals (cheetahs) are nearly extinct.

Answers

Answer:

This allele has not been eliminated by natural selection because it may confer an adaptive advantage for particular environmental conditions  

Mice and rats are opportunistic species. These species can rapidly adapt to different environmental conditions, while cheetahs are unable to adapt to changing environments.  

Explanation:

An allele is a gene variant that may be beneficial, neutral, or deleterious for a particular environment. Different alleles are not eliminated by natural selection against other alleles (even when a priori seem to be deleterious) because they confer a selective advantage in a given environment. For example, the allele for sickle cell anemia is caused by a point mutation which is lethal in homo-zygous individuals, but heterozygous individuals are less likely to die of malaria, thereby this allele has been positively selected in geographic areas where malaria is an endemic disease. Moreover, mice and rats are opportunistic species, i.e., they are species that rapidly adapt to varied living conditions. These species are characterized to have high growth rates and produce many offspring. On the other hand, the cheetah is a highly specialized species that is unable to adapt to changing environments. In consequence, cheetah populations are more prone to become extinct than rat and mice populations.

Which critter trait is affected by an environmental factor, such as light, temperature, or
diet? Explain.

Answers

Answer:

Tallness.

Explanation:

Tallness is the critter trait that is affected by an environmental factor, such as light, temperature, or  diet because the organism remains short if they are not getting food properly as well as temperature. Food provides essential nutrients that contribute in the growth of organism. Suitable temperature of the body allows the different functions in the body to be done which directly affects the growth of the body and the organism becomes taller.

Which is not true regarding the mammalian cardiac cycle

Group of answer choices

both atria contract at roughly the same time, and then the ventricles

relaxation, or filling, phase is called diastole

the semilunar valve is the usual pacemaker

contraction, or pumping, phase is called systole

Answers

the semilunar valve is usual peacemaker

write the function of eustachian tube?

Answers

Answer:

Equalized air pressure.

Explanation:

The function of eustachian tube enables air pressure to be equalized between the outside air and the middle ear cavity. The eustachian tube also known as pharyngotympanic tube that connects the middle ear cavity with the nasopharynx. Eustachian tube is responsible for the aeration of the middle ear system as well as clears mucus from the middle ear into the nasopharynx. Opening and closing functions of the eustachian tube are is very important.

In general, men show _____ than women do. a. less facial expression b. more facial expression c. less envy or anger d. more envy or anger

Answers

Answer:

more envy and anger

Explanation: they cant control themselves lol.

Which of these organelles prepares proteins to be fully functional?

A. Rough endoplasmic reticulum

B. Large vacuoles

C. Smooth endoplasmic reticulum

D. Chloroplasts

Answers

Rough endoplasmic reticulum

Answer:

Rough endoplasmic reticulum is among the organelles that are found in eukaryotic cells. The reason as to why it is called rough is because it has ribosomes attached to its surface. Its main function is to produce proteins.

Explanation:

Explain the role of cellular respiration in a cell.

Answers

Answer:

Every cell performs a type of cellular respiration as it is required to produce energy. The point of cellular respiration is to turn high-energy molecules, know as glucose, into ATP, a form of usable energy. There are two types of respiration, aerobic and anaerobic. Aerobic goes through 3 stages and produces the most ATP by using oxygen and releasing carbon dioxide. Anaerobic does the same job but only uses one stage and produces much less ATP. This process gives the cell energy and continues the carbon cycle.

2Which term describes the two groups of plants that do not need water to reproduce?
A. spermatophytes
B. cotyledons
C. embryophytes
D. Paleozoic plants

Answers

Answer:

A

Explanation:

.............................spermatophytes...........................

Match the organelle (1-4) with the correct description (5-8). 1) mitochondrion 5) synthesizing molecules 2) centriole 6) liquid in cell 3) endoplasmic reticulum 7) provides cell with energy 4) cytosol 8) aids the formation of the spindle apparatusA) 1 and 5, 2 and 6, 3 and 7, 4 and 8 B) 1 and 7, 2 and 6, 3 and 8, 4 and 5 C) 1 and 7, 2 and 8, 3 and 5, 4 and 6 D) 1 and 8,2 and 5, 3 and 6, 4 and7 E) 1 and 6, 2 and 8, 3 and 5, 4 and7

Answers

Answer:

C) 1 and 7, 2 and 8, 3 and 5, 4 and 6  

Explanation:

1 and 7: 1) mitochondrion; 7) provides the cell with energy

The mitochondrion is the organelle that produces the energy that the cell needs for its functions. It synthesizes adenosine triphosphate (ATP), which storages large quantities of energy in its bonds.

2 and 8: 2) centriole; 8) aids the formation of the spindle apparatus

The centrioles have a crucial role during mitosis. They form the spindle apparatus that attaches to the chromosomes, moving them to the opposite poles of the cell.

3 and 5: 3) endoplasmic reticulum; 5) synthesizing molecules

The endoplasmatic reticulum is a continuous membrane connected to the nuclear membrane. There are two types, the Rough Endoplasmatic Reticulum (RER) and the Smooth Endoplasmatic Reticulum (SER). The first one synthesizes proteins, while the second one synthesizes lipids.

4 and 6: 4) cytosol; 6) liquid in the cell

The cytosol is the liquid that is inside the cell. It is mostly water, but it also has ions and molecules. It is important for the transport of substances.

The correct match between organelles and their description is - Option C.  1 and 7, 2 and 8, 3 and 5, 4 and 6.

In the cell, there are many organelles that perform different and specific functions essential for the cell to survive. These organelles help in synthesizing molecules, energy production, cell division, and many others.

Mitochondrion: it is a cell organelle that is the site of cellular respiration, which is a process that breaks the sugar molecule and releases a high amount of energy in the form of ATP. Therefore, it is known as the powerhouse of the cell. Thus, correctly matches with 7) provides the cell with energyCentriole: It is organelles that help to form the spindle during the cell division in the cell that makes the region at the poles where spindle fibers form. Thus, it correctly matches with 8) aids the formation of the spindle apparatus.Endoplasmic reticulum: It is organelles that synthesize various molecules such as hormones and other protein molecules, Rough ER has ribosomes attached to it that synthesize proteins. Thus, correctly matches with 5) synthesizing moleculesCytosol: It is a semi-fluid-like substance made up of a lot of water, dissolved ions, smaller minute molecules, and proteins. It has filled in the interior cellular space. Thus, the correctly matches with 6) liquid in the cell.

Thus, the correct answer is - Option C.

Learn more about cell organelles:

https://brainly.com/question/17994377

It was found that the C4 protein promotes synaptic pruning during brain development in the teenage years. This is a normal process in brain development that is important for removing unnecessary connections between neurons and establishing a mature brain structure. However, high expression levels of a certain allele of C4 can lead to too much pruning, which may promote the onset of schizophrenia. The variation observed at the C4 gene which leads to the greatest increase in risk was found to cause a 25% increase in the risk of developing schizophrenia. The baseline risk in the population is 1%. What is the risk of an individual with this variant developing the condition?a. 0.25%.
b. 1.25%.
c. 25%.
d. 26%.

Answers

Answer:

b. 1.25%

Explanation:

Variations observed in C gene has increase in risk of 25% to develop schizophrenia. It is a kind of an abnormality in which a person interprets reality unrepresentative. The baseline risk in population is 1% then there is 1.25% risk associated with an individual to develop this condition.

What is immigration?
A. When animals leave an ecosystem
B. When animals are born in an ecosystem
Ο Ο Ο O
C. When animals move into an ecosystem
D. When animals die in an ecosystem

Answers

Answer:

C. When animals move into an ecosystem

Explanation:

Based on the Punnett square above, what are the genotypic and phenotypic ratios of the offspring? A red plant and a pink plant. Red plant genotype: Pink plant genotype: Phenotypic ratio: Red = Pink = White = Genotypic ratio: RR = Rr = rr =

Answers

Answer:

GivEn:

⠀⠀⠀⠀⠀⠀⠀

The ratio of two sides of a parallelogram is 2 : 5.Perimeter of parallelogram = 70 cm

⠀⠀⠀⠀⠀⠀⠀

To find:

⠀⠀⠀⠀⠀⠀⠀

Sides of parallelogram?

⠀⠀⠀⠀⠀⠀⠀

Solution:

⠀⠀⠀⠀⠀⠀⠀

☯ Let two adjacent sides of parallelogram be 2x and 5x.

⠀⠀⠀⠀⠀⠀⠀

Refrence of image is shown in diagram:

⠀⠀⠀⠀⠀⠀⠀

[tex]\setlength{\unitlength}{1 cm}\begin{picture}(0,0)\thicklines\qbezier(1,1)(1,1)(6,1)\put(0.4,0.5){\bf D}\qbezier(1,1)(1,1)(1.6,4)\put(6.2,0.5){\bf C}\qbezier(1.6,4)(1.6,4)(6.6,4)\put(1,4){\bf A}\qbezier(6,1)(6,1)(6.6,4)\put(6.9,3.8){\bf B}\put(0.7,2.5){\sf 2x}\put(3,0.5){\sf 5x}\end{picture}[/tex]

⠀⠀⠀⠀⠀⠀⠀

[tex]\underline{\bigstar\:\boldsymbol{According\:to\:the\:question\::}}\\ \\[/tex]

Perimeter of parallelogram = 70 cm

⠀⠀⠀⠀⠀⠀⠀

[tex]\dag\;{\underline{\frak{We\;know\;that,}}}\\ \\[/tex]

[tex]\star\:{\boxed{\sf{\purple{Perimeter_{\;(parallelogram)} = 2 \times (sum\:of\: adjacent\:sides)}}}}\\ \\[/tex]

[tex]:\implies\sf 2 \times (2x + 5x) = 70\\ \\[/tex]

[tex]:\implies\sf 2 \times 7x = 70\\ \\[/tex]

[tex]:\implies\sf 14x = 70\\ \\[/tex]

[tex]:\implies\sf x = \cancel{ \dfrac{70}{14}}\\ \\[/tex]

[tex]:\implies{\boxed{\sf{\pink{x = 5}}}}\;\bigstar\\ \\[/tex]

Therefore,

⠀⠀⠀⠀⠀⠀⠀

2x = 2 × 5 = 10 cm.

5x = 5 × 5 = 25 cm.

⠀⠀⠀⠀⠀⠀⠀

[tex]\therefore[/tex] Hence, Adjacent sides of parallelogram are 10 cm and 25 cm.

Our eyes are always the same size from birth​

Answers

Answer:

It's FALSE. Baby eyes are propotionallity larger than adult eyes.

[tex]\color{red}{==========================}[/tex]

✍︎☔︎ʜɴǫɴ☔︎

✍︎ᴥ︎︎︎ʀʀʏɴʟʀɴɪɴɢᴥ︎︎︎

✍︎ɪ ʀ

1. The structure that's not a component of wall of sponges is

Answers

Answer:

Chitin.

Explanation:

The structure that is not a component of wall of sponges is Chitin. Their body comprise of calcareous or siliceous spicules or protein spongin fibres. Choanocytes are the distinctive cells located in the interior body walls of sponges. Sponges are similar to other animals in many characteristics such as they are multicellular, heterotrophic, lack cell walls and produce sperm cells in order to produce offspring sexually and also different from animals due to lack of tissues and organs.

heavenly bodies that travel around a planet are called satellites or moon which planet has no satellite or moon
A. mars and venus
B. jupiter and venus
C. jupiter and mars
D. mercury and venus​

Answers

Answer:

i think its A. i dunno if it is btw have a nice day

Answer:

D. Mercury and Venus

What is limiting factor

Answers

Answer:

limiting factors are often referred as a lack of a particular resource .

Hemophilia is inherited in humans as an X-linked recessive condition. A phenotypically normal woman whose father was hemophiliac marries a normal man. What is expected among their offspring?

Answers

Answer:

100% of the girls are expected to be normal, X+X+ and X+X-50% of the boys are expected to be normal, X+Y50% of the boys are expected to be hemophilic, X-Y75% of the whole offspring normal (X+X+, X+X-, X+Y)25% of the whole offspring hemophilic (X-Y)

Explanation:

Due to technical problems, you will find the complete explanation in the attached files

I need to know which ones to check off

Answers

The instructions don’t really count toward your grade, if you really wish to learn from then you should just try your best and take notes on what you beed to know. If you’re just using Brainly to get past the class just guess on the instructions as they do not effect your grade very much at all if at all.

The most direct method by which an ion or molecule can move across a cell membrane is by ____________.A. using an integral protein.B. a sodium-potassium pump.C. simple diffusion. D. active transport.E. osmosis.

Answers

Answer:

C. Simple diffusion

Explanation:

Simple diffusion from a high to low concentration is the most direct method that ions or molecules can move across a cell membrane.

Through this method, no proteins are required for transport, and no energy is used.

The ion or molecule being transported directly moves across the cell membrane, without any other factors involved.

So, the correct answer is C. Simple diffusion

Tell me how bacteria make their energy and other chemical products.

Answers

Answer:

Bacteria can obtain energy and nutrients by performing photosynthesis, decomposing dead organisms and wastes, or breaking down chemical compounds. Bacteria can obtain energy and nutrients by establishing close relationships with other organisms, including mutualistic and parasitic relationships.

Explanation:

I hope it helps! Please mark my answer as bräinliest! Thank You!

Câu 4: Nghiên cứu về lạm phát nằm trong đối tượng của…
a. kinh tế học vi mô.
b. kinh tế học vĩ mô.
c. kinh tế học thực chứng.
d. kinh tế học chuẩn tắc.

Answers

Answer:

Explanation:

B. Kinh tế học vĩ mô

Besides oxygen exchange, the respiratory system also functions to eliminate (Click to select) . Too much of this gas can cause a(n) (Click to select) in blood pH, compromising homeostasis.

Answers

Answer: Carbon dioxide, decrease

Explanation:

Cellular respiration is a set of reactions by which organic compounds (sugars) are degraded by oxidation to inorganic substances. This process provides energy in the form of ATP and to achieve this, many reactions occur in which electrons are passed from one molecule to another, called redox reactions. In the case of aerobic respiration, the final electron acceptor is molecular oxygen, which is reduced to water.  Oxygen, like any gas, crosses the plasma membrane and then the mitochondrial membrane, and in the mitochondrial matrix it binds electrons and protons, forming water. It is in this final oxidation and in previous processes that energy is obtained. The reactions that extract energy from sugars such as glucose are catabolic reactions since a large molecule is broken into smaller molecules. For example, when glucose is broken down in the presence of oxygen, six molecules of carbon dioxide (CO2) and six molecules of water are obtained. Both CO2 and water are eliminated by lung exhalation.

In the event that this carbon dioxide is not completely eliminated, something called respiratory acidosis occurs, which is one of the disorders of the acid-base balance due to a decrease in the frequency of respirations or hypoventilation. The increase in the concentration of carbon dioxide in the blood causes the pH value to decrease. This scale is a measure of the degree of acidity or alkalinity of a substance or solution. A pH value of less than 7 means it is more acidic, and a pH value of more than 7 means it is more alkaline. Carbon dioxide is constantly produced as the body metabolizes energy, which will accumulate in the circulation rapidly if the lungs do not remove it properly. Alveolar hypoventilation thus leads to an increase in arterial CO2 partial pressure. The increase in pressure in turn decreases the ratio of bicarbonate (HCO3) to bicarbonate pressure with a consequent increase in acidity or decrease in blood pH. The body's metabolism rapidly generates a large amount of carbonic acid (H2CO3) and non-volatile acid. The lungs normally excrete the volatile fraction through ventilation without accumulation of acid in the blood but in this case this is not possible and this accumulation of carbonic acid causes the pH to rise. This disrupts homeostasis, a form of equilibrium that is achieved through a network of feedback control systems that constitute the self-regulatory mechanisms.

Mode of action of aldehydes and Quaternary ammonium compounds is

Answers

Answer:

Aldehydes have antibacterial, antifungal, antiviral and sporicidal activity. These are helpful to destroy the spores of Bacillus subtilis and Clostridium sporogenes. Glutaraldehyde and formaldehyde are commonly used aldehydes in disinfectants.

Quaternary ammonium compounds work by denaturing the proteins of the bacterial or fungal cell, affecting the metabolic reactions of the cell and causing vital substances to leak out of the cell, causing death.

What is the probability that a hybrid individual with the genotype AabbCcddEeFf will produce a gamete that has the genotype abCdeF

Answers

Answer:

6.25%

Explanation:

Find the number of different gametes that can be produced

number of gametes produced = 2^n

n is the number of allele pairs that are heterozygous

there are 4 heterozygous allele pairs, these are: Aa, Cc, Ee and Ff

2^4 = 16

abCdeF is one of the 16 genotypes that could be produced

to find the percentage, divide 1 and 16 and multiply by 100

1 ÷ 16 = 0.0625

0.0625 × 100 = 6.25

ason Kimble's study of the Archaea in Snowy River in Fort Stanton Cave showed that Archaea play an important role in __________.

Answers

Answer:

Ecosystem.

Explanation:

Archaea play an important role in ecosystems with organisms that derive or produce energy from oxidation of methane. Many of Archaea are bacteria which are often a major source of methane in such environments and they can play a role as primary producers. Archaea is important for scientists because it has unique ecological roles and can also generate energy differently i.e. responsible for producing biological methane which no eukaryotes or bacteria can do that.

Which two physical properties of graphite make it a good mineral for use in pencils?
1. luster and fracture
2. cleavage and color
3. hardness and streak
4. greasy feel and composition

Answers

The answer is 3 3 3 3

The physical properties of graphite which makes it good for pencils is ;  

( 3 ) hardness and streak

Graphite is made up of carbon atoms which are held together by van der waals forces ( weak force ). They are soft and slippery which is why graphite is used in the manufacture of  lubricants. while graphites are used for the manufacture of writing materials such as pencils because of its hardness and streak

Hence we can conclude that the physical properties of graphite which makes graphite good for the production of pencils are hardness and streak

Learn more : https://brainly.com/question/18169662

examples of c3 and c4 plants​

Answers

C3 vs C4 Plants
C3 Plants C4 Plants
Examples include rice, wheat, oats, barley, cotton, peanuts, tobacco, sugar beets, soybeans and spinach Examples include Maize, Sugarcane, pearl millet, sorghum.
Leaves of these plants DO NOT show Kranz anatomy. Leaves of these plants show Kranz anatomy.

You have a microorganism you know is both fastidious and which normally lives in human lungs. Which medium might this organism have the highest probability of growing on and why

Answers

Answer:

It is likely that this microorganism grows in enriched culture media.

Explanation:

As shown in the question above, the microorganism that lives in the lungs is extremely demanding. This means that this microorganism is very difficult to be cultivated in a culture medium, as it requires specific nutrients and in specific amounts to be able to develop. These microorganisms are called fastidious microorganisms and need an enriched culture medium to develop.

Enriched culture media are those that have a high range of nutrients in their composition. These culture media are highly nutritious and for this reason, they are the ideal environment for demanding microorganisms, as it can efficiently meet the needs of this organism.

Other Questions
Write an equation in slope-intercept form for the line with slope -3/2and y-intercept 5. Write 128 as a product of its prime factors During electrophilic aromatic substitution, a resonance-stabilized cation intermediate is formed. Groups, already present on the benzene ring, that direct ortho/para further stabilize this intermediate by participating in the resonance delocalization of the positive charge. Assume that the following group is present on a benzene ring at position 1 and that you are brominating the ring at positon 4. Draw the structure of the resonance contributor that shows this group actively participating in the charge delocalization.-----OCH3 2. If you move 50 meters in 10 seconds, what is your speed? The haptoid condition for a human ?A/-Both 46 chromosomes & 2n are correct. -2n B/-Neither 46 chromosomes 2..nor 2n are correct. C/-46 chromosomes Sequence three probable steps of fossil fish formation? I really need help with this question please! 10050000 it's has to be step by step aka show work 1. What does Williams say was God's reason for giving mankind a "Nature fitted for... Society" What is the slope of a trend line that passes through the points (1, 3) and (10, 25)?Negative StartFraction 15 Over 2 EndFractionNegative one-halfStartFraction 22 Over 9 EndFractionStartFraction 24 Over 7 EndFraction advantages of computational skill Name the following.(a) Tissue that forms the inner lining of our mouth.(b) Tissue that connects muscle to bone in humans.(c) Tissue that transports food in plants.(d) Tissue that stores fat in our body.(e) Connective tissue with a fluid matrix.(f) Tissue present in the brain Q/29304199UEAofferUCL A teacher has a conference with a parent who is angry because he claims the final grade his son received on the literature unit is unfair. According to the parent, the grade had nothing to do with what the student did or learned in class. The teacher responds by showing the parent the unit objectives, class activities, and test questions and explains how they fit together. The teacher is presenting evidence of the Group of answer choices reliability of the literature unit. validity of the learning objectives. reliability of the test. validity of the grade. 1. Three products from renewable resources are Can someone help me with this word search? When a company records depreciation it debits:_____.A. Depreciation Expense and credits a contra-asset account. B. Depreciation Expense and credits Cash. C. a long-lived tangible asset account and credits Depreciation Expense. D. a liability account and credits Depreciation Expense. "According to new growth theory, ______. A. prosperity will last but growth will not last because eventually the real interest rate falls, which slows the capital accumulation needed for growth B. growth can persist indefinitely C. growth rates and income levels per person around the globe will converge D. labor productivity grows most quickly in countries with the largest populations" A housecleaning agency was given a key to a customer's house so that the agency could have its employees clean while the homeowner was away. After a maid sent by the agency had finished and left the homeowner's house, she went back because she had forgotten her cigarettes. She neglected to lock the door when she left the second time because she was already late for the next job. When the homeowner returned after a few days away, she discovered that her house had been ransacked and several items of jewelry stolen. The front door was open, and there were no signs of forced entry. If the homeowner brings an action against the agency that employed the maid, what is the likely result An angle measures 2 more than the measure of its complementary angle