The Desert Bighorn has the heaviest and largest horns out of the options.
I hope this helps!
Explain why sickle cell anaemia is persistent in the tropics yet it is lethal and these areas have high malaria Providence.
Sickle cell anemia is persistent in the tropics because those with sickle cell anemia cant contract the malaria virus because of the shape of their blood cells, and this is advantageous in the tropics where there are more malaria cases. So those with sickle cell anemia live to pass on their genes.
What is the most likely explanation for
the DNA found in mitochondria?
Answer:
Origin. Nuclear and mitochondrial DNA are thought to be of separate evolutionary origin, with the mtDNA being derived from the circular genomes of bacteria engulfed by the early ancestors of today's eukaryotic cells.
Explanation:
I need help with dis plz the one dat says during
Answer:
cytokinesis
Explanation:
It’s the process that separates the parent cell into two indistinguishable daughter cells
Question 1 of 10
A cell membrane is very specific about what it allows across. How does this
help the cell?
A. The cell works better when it contains fewer proteins.
B. It helps the cell absorb as many different molecules as possible.
C. Transport proteins allow only enzymes to pass through the
membrane
D. It is better for the cell if most molecules are prevented from
entering
Answer:
D. It is better for the cell if most molecules are prevented from
entering
Explanation:
how did the evolution of species change the atmosphere
Answer:
rising temperatures, droughts, shifting patterns of precipitation and longer growing seasons, plants and animals are evolving to keep pace. Biologists have observed squirrels and salmon developing at an accelerated pace, causing them to reproduce at a younger age.
Assume for the purposes of this problem that the order of and distances between three linked genes are the following: unc-32 10mu vab-7 20mu dpy-17 What is the probability of obtaining a phenotypic unc-32 vab-7 offspring from a cross between a heterozygous fly(unc-32 vab-7 dpy-17/ ) and the triple recessive nematode
From the distances between genes and their order, it is possible to get recombination frequencies per region (simple and double recombination frequencies). The probability of obtaining a unc-32 vab-7 + offspring is 0.09 = 9%.
---------------------
We are usually asked to get the order of genes in a chromosome. To do so, we need to get the distances between genes. And to get distances between genes, we need to get their recombination frequency.
When three genes are involved, we get the distances by taking the recombination frequency, P, per region.
We talk about regions, R, when we are making reference to the space between two genes.
Gene 1 -----(R1)----- Gene 2 --------(R2)------ Gene 3
P1 P2
P1 = recombination frequency between Gene 1 and Gene 2P2 = recombination frequency between Gene 2 and Gene 3⇒ P1 = (SR + DR) / N
⇒ P2 = (SR + DR)/ N
Where:
SR is the number of simple recombinants in each region, DR is the number of double recombinants in each region, and N is the total number of individuals.The genetic distance will result from multiplying that frequency by 100 and expressing it in map units (MU). One centiMorgan (cM) equals one map unit (MU).
In the exposed problem, we need to do the inverse way. We already have the order and distances between genes, and we need to get the recombination frequency, P.
We know that the order of genes is as follows,
unc-32 ------------- vab-7----------------- dpy-17
Distances are:
Region 1 = 10 MURegion 2 = 20 MUWe need to get the probability of obtaining a phenotypic unc-32 vab-7 + offspring from a cross between a heter0zyg0us fly (unc-32 vab-7 dpy-17/ + + + ) and the triple recessive nematode (unc-32 vab-7 dpy-17 / unc-32 vab-7 dpy-17).
Cross:
unc-32 vab-7 dpy-17 / + + + x unc-32 vab-7 dpy-17 / unc-32 vab-7 dpy-17
To get the genotype unc-32 vab-7 + , a simple recombination, SR, must occur in region 2.
So we need to get the simple recombination frequency in Region 2.
To do so, first we need to clear the following equation
Distance between vab-7 dpy-17 = P2 x 100 = 20 MU
20MU = P2 x 100
P2 = 20 / 100
P2 = 0.2
The recombination frequency in region 2 (P2) is 0.2.
Now, we need to get the simple recombination frequency in this region.
P2 = (SR + DR) / N
P2 = Simple recombinants Frequency + Double recombinants Frequency
R1 = 10 MUR2 = 20 MUDouble recombinants Frequency = 10% x 20% = 0.1 x 0.2 = 0.02P2 = Simple recombinants Frequency + Double recombinants Frequency
0.2 = Simple recombinants Frequency + 0.02
Clearing the equation,
Simple recombinants Frequency = 0.2 - 0.02 = 0.18
Simple recombinant frequency in region 2 will produce the following two chromosomes,
unc-32 vab-7 ++ + dpy-17So half of this frequency will produce one chromosome, and the other half will produce the other chromosome.
unc-32 vab-7 + ⇒ 0.09+ + dpy-17 ⇒ 0.09So, the probability of obtaining a phenotypic unc-32 vab-7 + offspring is 0.09 = 9%.
---------------------------------
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Scientists primarily use two different techniques to create multiple copies of a DNA sequence: cloning and polymerase chain reaction (PCR). Which of the following statements about these methods is true?
Cloning is more rapid than PCR at creating billions of copies of a DNA sequence.
PCR can be used to translate DNA into a protein, while cloning cannot.
PCR generates more copies of a DNA sequence in less time than cloning.
PCR is better at creating copies of large DNA samples than cloning.
Answer:
The answer to your question would be Option 3.
PCR generates more copies of a DNA sequence in less time than cloning.
Explanation:
PCR creates copies exponentially, creating many copies in a short amount of time.
Answer:
PCR generates more copies of a DNA sequence in less time than cloning.
Explanation:
I took the test.
Your Mother needs to transfer (i.e., encode) a list of 25 vocabulary words from her STM to her LTM. She asks for your help. You suggest that she use elaborative rehearsal and you begin to train her in this technique. What do you ask your Mother to do?
1) you ask her to repeat the words over and over again
2) you ask her to give each word meaning by using each word in a sentence
3) you ask her to break down each word into various "chunks"
4) you ask her to memorize each word and its meaning
*PLEASE ADD EXPLANATION*
The best technique for your mother is that she uses each word in a sentence to give it a meaning, and remember it better (option 2).
Elaborative rehearsal is a common technique used to remember information in a long-term way. Due to this, this technique can be used to move information from short-term memory to long-term memory.
In this technique, the main purpose is to associate the new information with something you already know. In learning new words, this can include:
Associating new words to images.Creating examples of sentences.Associating a new word to a synonym you already know.In this context, the technique that is part of elaborative rehearsal is using the word in a sentence (option 2).
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What color do you see when all colors of light are reflected? (2 points) Group of answer choices Black Blue Maroon White
Answer:
white
Explanation:
Answer:
white colour
Explanation:
when all colours are reflected back then we see white colour
Indicater I need the meaning
Answer:
indicator can mean two different things,
1. a thing, especially a trend or fact, that indicates the state or level of something.
2. a gauge or meter of a specified kind.
Hope this heled!
Which selection from the article "Scientists study Persian Gulf reefs for coral survival clues" identifies the biggest threat to coral reefs?
Question 5 options:
Warming waters spark bleaching events. Along with the bleaching, the ocean is becoming more acidic.
The researchers demonstrated that this new organism was the most commonly found algae throughout the gulf's coral reefs. They say it probably adapted as a result of the gulf's harsh conditions.
Warm and acidic water leads to bleaching of coral reef and the new algae can survive due to mutation in its gene.
The biggest threat to coral reefs in the Persian gulf is the warming of waters due to climatic change as well as acidification of water. Algae present on coral reefs can't tolerate acidic water as well as warm water which leads to the death of algae and the coral looks white or colorless.
A new organism was the most commonly found algae throughout the gulf's coral reefs due to change in the genetic makeup due to harsh climatic conditions so we can conclude that warm and acidic water leads to bleaching of coral reef and the new algae can survive due to mutation in its gene.
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Where has the population reached the carrying capacity in the graph shown
above?
A. Point A
B. Point D
C. Point B
D. Point C
Answer: the correct answer is D
Explanation:Carrying capacity is characterized as the maximum populace size that a domain can continue inconclusively. For most species, there are four factors that factor into figuring the carrying capacity of an individual population: food accessibility, water resources, habitat, and ecological conditions.
In a graph representation of population size in a time period increases until it reaches carrying capacity, carrying capacity is representing in the graph where the increase in curve becomes stable and makes a plateau.
The published data for the map distance between the gene and the centromere is 26 map units. You just calculated the map distance as 17 map units. What is the best explanation for this disparity
Linkage maps and physical maps are NOT the same. A linkage map measures the number of recombination events in a given chromosome fragment.
A linkage map is based on the frequency of recombination events between genes or molecular markers.
This frequency indicates the number of events in which a single chromosomal fragment recombines between two or more genes or molecular markers during meiosis.
Conversely, a physical DNA map indicates the physical locations of genes (molecular markers) and nucleotide (DNA) sequences of interest, which is useful to identify genes by positional cloning.
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Name the organ that helps a turtle to swim in water?
Answer:
Turtles utilize all four of their legs, extending them to propel themselves through the water.
Explanation:
The sequence by which electrons travel downhill during aerobic respiration. The se sequence has NADH, oxygen chain of transportation of electron, food and NAD.
Respiration (both aerobic and anaerobic) begins with glycolysis in the cytoplasm of a cell;
1 glucose molecule (C₆H₁₂O₆) is converted into 2 molecules of pyruvate in a 10-step process, consuming 2 ATPs and yielding 4 ATPs;
Additionally, 2 NAD+ molecules are reduced to NADH molecules;
In aerobic respiration, each pyruvate molecule then goes through the link reaction, getting converted to acetyl co-A in the mitochondrial matrix, producing 1 CO₂ molecule and 1 reduced NADH molecule;
Acetyl co-A then enter the Krebs or tricarboxylic acid cycle (TCA) where 2 CO₂, 1 ATP, 3 NADH (by reduction of NAD+) and 1 FADH₂ molecules are produced;
The NADH and FADH₂ molecules produced are electron carriers required for the electron transport chain (ETC);
The electron transport chain consists of 4 proteins within the inner mitochondrial membrane which are involved in the production of ATP by oxidative phosphorylation;
The first protein (C1) is responsible for oxidising NADH to NAD+, releasing energy used to generate the proton motive force (PMF) by pumping the protons (H+ ions) into the intermembrane space and the electrons released are transferred to a ubiquinone molecule;
The second protein (C2) is responsible for oxidising FADH₂ to FADH, also releasing energy used to generate the proton motive force (PMF) and, similarly to C1, the electrons released are transferred to ubiquinone;
The third protein complex (C3) transfers the electrons from ubiquinone to cytochrome C;
Finally, cytochrome C transfers these electrons to the fourth complex (C4), where they combine with free protons in the matrix and O₂ to to produce H₂0;
The PMF is then harvested via an ATP synthase protein where H+ flood back into the mitochondrial matrix, and the energy released is used to generate ATP from ADP and Pi;
ATP is now ready for use for bodily processes requiring it.
can some one answer this questions please
1) The stomach is an organ of the digestive system. It is made up of several types of tissue that work together. What kinds of tissue make up the stomach? Choose ALL that apply.
A) nervous
B) smooth muscle
C) dense connective
D) simple columnar epithelial
E) stratified squamous epithelial
Answer:
c)dense connective
Explanation:
Answer:
c) dense connective
Explanation:
How to find cane yield?
From an agronomical point of view, there is a lot that the grower can do to maximize sugarcane yield. Proper crop nutrition is an important factor to achieve this.
In a large number of cases, nutrients that drive sugarcane yield forward, will also improve the sugar content and quality of the harvested sugarcane crop.
Most required nutrients have specific roles to play in improving yield:
The structure that regulates air pressure between the external atmosphere and the middle ear cavity is known as the:
Answer:auditory tube
Explanation
The structure that regulates air pressure between the external atmosphere and the middle ear cavity is known as the Eustachian tube.
What is the structure of Ear?The ear is a type of organ of hearing and balance which consists of a cavity in the skull structure lined with soft tissue. It surrounds three distinct spaces filled with air or fluid i.e. the outer, middle, and inner ear. These specialized spaces host both the sound transmission apparatus and the sensory apparatus.
Types of bones present in the ear are
1. Hammer shaped bone known as malleus which is attached to the eardrum.
2. Anvil shaped bone known as incus present in the middle of the chain of bones.
3. Stirrup shaped bone known as stapes is attached to the membrane-covered opening which connects the middle ear with the inner ear (oval window).
The cavity of the middle ear is a narrow air-filled space which is a slight constriction divides it into an upper and a lower chamber known as tympanic cavity proper below and the epitympanum above. The main function of the Eustachian tube is to equalize the air pressure between the environment and the middle ear.
Thus, the structure that regulates air pressure between the external atmosphere and the middle ear cavity is known as the Eustachian tube.
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which one of the following is a DNA virus
A: Hin1 B: Hepatits C: HIV D: Herpes Complex
Answer:
Hepatitis definitely but Herpes is double stranded but I’m not sure.
Explanation:
The cuticle which covers crustacean bodies is composed of
Question in the picture
Answer:
1.255hpq
Explanation:
hope it helps po...
what is the difference between DAMPS and PAMPS?
The difference that can be attributed to both PAMPs and DAMPs is ;
PAMPs is one that drive inflammation as a result of infection and it is usually derived from microorganisms.DAMPs is been derived from some host cells.What are PAMPs and DAMPs ?Both PAMPs and DAMPs always posses their own derivation, DAMPs goes with host cell which could be tumor cells, dead or dying cells, and PAMPs on the other hand is been drive inflammation in response to infections.
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pls I need answers ASAP,thank you
Compare and contrast an active solar heating system with a radiator system.
Answer:
A system that uses the sun's energy without requiring mechanical devices (pumps or fans) to distribute the collected heat are called solar system while radiator system uses fuel to heat the water. in active solar heating system, the SUN's energy used to heat water.
The comparison of an active solar heating system with a radiator system gives; Solar systems use the sun's energy to heat water without the need for mechanical equipment to disperse the heat, where radiator systems require fuel to heat the water.
What is an active solar heating system?Active solar heating systems employ solar energy to heat a fluid (liquid or air), which is then transferred to the interior area or stored for later use.
In conclusion, an active solar heating system and a radiator system are all subs of heat energy
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20. Explain why it is important to cite the references you use in a scientific report.
Answer:
If you don’t cite where you got your information from, there could be horrible consequences. If you don’t cite your references and use that work as your own, your subject to plagiarism.
Explanation:
Answer:
If you don’t cite where you got your information from, there could be horrible consequences. If you don’t cite your references and use that work as your own, you are subject to plagiarism.
Explanation:
Ribosomes are produced in an area of the nucleus known as the
• Nucleolus
• Adenosine triphosphate
• Golgi apparatus
• Endoplasmic reticulum
list five traportance of science to men
1. Science is the greatest collective endeavor. It contributes to ensuring a longer and healthier life, monitors our health, provides medicine to cure our diseases, alleviates aches and pains, helps us to provide water for our basic needs – including our food, provides energy and makes life more fun, including sports, music, entertainment and the latest communication technology. Last but not least, it nourishes our spirit.
2. Science generates solutions for everyday life and helps us to answer the great mysteries of the universe. In other words, science is one of the most important channels of knowledge. It has a specific role, as well as a variety of functions for the benefit of our society: creating new knowledge, improving education, and increasing the quality of our lives.
3. Science must respond to societal needs and global challenges. Public understanding and engagement with science, and citizen participation including through the popularization of science are essential to equip citizens to make informed personal and professional choices. Governments need to make decisions based on quality scientific information on issues such as health and agriculture, and parliaments need to legislate on societal issues which necessitate the latest scientific knowledge. National governments need to understand the science behind major global challenges such as climate change, ocean health, biodiversity loss and freshwater security.
4. To face sustainable development challenges, governments and citizens alike must understand the language of science and must become scientifically literate. On the other hand, scientists must understand the problems policy-makers face and endeavor to make the results of their research relevant and comprehensible to society.
5. Challenges today cut across the traditional boundaries of disciplines and stretch across the lifecycle of innovation -- from research to knowledge development and its application. Science, technology and innovation must drive our pursuit of more equitable and sustainable development.
Use complete sentences to explain how global wind patterns such as the polar easterlies in the southern hemisphere would be impacted if Earth stops spinning.
Answer:
Atmospheric patterns are also tied to the planets rotation
It would greatly change the way air currents move
Proszeee o poommoooc
Answer:
Explanation: Proszeee o poommoooc
