Answer:
B
Explanation:
Crossing over is a process that happens between homologous chromosomes in order to increase genetic diversity. During crossing over, part of one chromosome is exchanged with another. Gametes gain the ability to be genetically different from their neighboring gametes after crossing over occurs.
Answer:
Crossing over is a process that happens between homologous chromosomes in order to increase genetic diversity.
Explanation:
During crossing over, part of one chromosome is exchanged with another. Gametes gain the ability to be genetically different from their neighboring gametes after crossing over occurs.
la rosa pertenece a un grupo de arbustos que puede ser homocigotico para expresar el tallo alto (TT) y se crusa con una homocigotica de tallo (tt) sabiendo que el tallo alto es dominante sobre el tallo enano ¿cómo serán los genéricos y fenotipos de la F1 yF2
How many protons are in an atom krypton
How does carbon cycle through Earth's systems? A. As fossil fuels are burned, carbon dioxide is made available for photosynthesis in animal cells. When the animals die, carbon is released into the soil, and the animal remains form new fossil fuels. B. Animals absorb carbon dioxide through their skin. Dead animals release carbon into the soil. Plants absorb the carbon from the soil and release carbon dioxide during photosynthesis. C. Plants absorb carbon dioxide through their leaves. Animals take in the carbon when they eat the plants. Animals exhale carbon dioxide. Dead plants and animals release carbon into the soilling D. Photosynthesis releases carbon dioxide into the atmosphere Cellular respiration uses carbon dioxide
Answer:
D. Photosynthesis releases carbon dioxide into the atmosphere Cellular respiration uses carbon dioxide.
Explanation:
Carbon dioxide is taken out of the air by the photosynthesis process to make carbon food for crops.
Animals and plants need a mechanism called respiration to remove carbon dioxide gas.
When combustibles are burned, carbon flows from fossil fuels to the air.
Neurons of the diencephalon are known As _____ neurons. A. First-order. B. Lower motor C. Second-order D. Upper motor E. Third-order
Answer:
E nice
good job
Explanation:
which of the following statements are true of the appendicular skeleton. a) The radius articulates with the ulna and the metacarpals. b) One hand contains 14 phalanges and one foot contains 13 phalanges. c) The scapula and clavicle attach the arm to the axial skeleton. d) The two hip bones are fused at the public midline. e) The tibia and fibula are to the leg what the radius and ulna are to the arm. f) The ilium, ischium, and pubis all contribute to the acetabulum to attach the tibia. g) Both the humerus and femur have projections for muscle attachment. h) The calcaneus supports the base of the thumb. i) The proximal tibia is part of the knee joint. j) The foot contains eight carpals and the wrist contains seven tarsals.
Answer:
u should have to short the question bcz its confusing....
Explanation:
discuss the ecological importance of the dark phase
Answer:
In the dark phase (which takes place in the stroma), the ribulose bisphosphate added to the carbon dioxide gas (CO2) in the air results in the production of organic compounds, principally carbohydrates or sugars, whose molecules contain carbon, hydrogen, and oxygen.
Explanation:
Nitrogen is an essential nutrient for plant growth. But farmers who cultivate pulse crops like Green gram, Bengal gram, Black gram etc., do not apply Nitrogenous Fertilizers during cultivation. Why?
Answer:
Nitrogen is so vital because it is a major component of chlorophyll.Nitrogen is the fuel that makes plants go. It's used to synthesize amino acids, proteins, chlorophyll, nucleic acids, and enzymes. Plants need more nitrogen than any other element.Farmers who cultivate pulse crops like green gram, Bengal gram, black gram, etc. do not apply nitrogenous fertilizers during cultivation because these crops have "rhizobium bacteria".
These plants are leguminous plants and they have symbiotic relationship with Rhizobium bacteria. This bacteria converts atmosphere nitrogen in a form that the plant can use, in return the plant provide them shelter and food. That's why they don't need extra nitrogen from fertilizers.
An organism has a haploid number of 20. What is the organism's diploid
number?
Answer:
It is 20!
Explanation:
I did this before
A fertilization
B prophase II
C polyploidy
D crossing over
Answer:
Hi, there your answer D. Crossing Over
Explanation:
Describe how a jump rope can be used to model a cell membrane of a plant cell
Answer:
Plants can use the energy from sunlight to turn water and carbon dioxide into. When the cell has enough organelles to make two cells, the division process starts. Let's discuss the process of photosynthesis again, this time taking a closer look at it. Just A long rope to represent the cell wall.
Explanation:
Answer:
the jump rope represents the cell wall
If Earth didn't rotate, what would be one major obstacle life would have to
overcome?
Answer:
A major obstacle life would have to overcome is having only a limited amount of natural light and then the rest of the time is darkness.
The stroma is the Group of answer choices space between the inner and outer membranes of a chloroplast. watery fluid enclosed by the inner membrane of a mitochondrion. thick fluid enclosed by the inner chloroplast membrane. space between the inner and outer membranes of a mitochondrion.
Answer: The correct option to the question is (thick fluid enclosed by the inner chloroplast membrane).
Explanation:
Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle. In electron micrographs, thylakoid membranes look like stacks of coins, although the compartments they form are connected like a maze of chambers. The green pigment chlorophyll is located within the thylakoid membrane, and the space between the thylakoid and the chloroplast membranes is called the STROMA
The STROMA is made up of thick colourless fluid which surrounds the thylakoid and is enclosed within the inner chloroplast membrane. The stroma is essential for photosynthesis because:
--> it contains the enzymes necessary for carbon fixation,
--> it also manages the chloroplast response to cellular stresses and signaling between various organelles.
--> It plays an important role in both the light-dependent and light-independent reactions of photosynthesis.
Once a standard curve has been prepared by plotting numbers of bacteria (CFU/mL) versus absorbance for one species of bacteria, this curve can be used for estimating bacterial numbers by measuring absorbance for any species of bacteria.
a. True
b. False
Answer:
b. False
Explanation:
The biomechanism of bacterial growth may be examined, by graphing cell growth (also known as absorbance) vs incubation time of the bacteria. A standard growth curve is the result of this process. The amount of turbidity in the broth culture is proportional to the number of microorganisms present.
A standard curve produced for a particular species can't be utilized to predict the number of bacterial counts for a different species due to the listed factors.
The rate of bacterial cell reproduction varies from a particular species to another.Varying species have different absorbance thresholds.describe nutrition in insect
Answer:
Lots of insects eat plants, some insects eat other insects, and some even drink blood. Many insects eat nectar from plants. And some insects will eat whatever scraps of food you leave lying around. A few insects, such as mayflies and some moths, never eat.
Explanation:
When species become challenging to classify, what is the most accurate technology for their identification?
DNA sequencing
DNA electrophoresis
DNA amplification
DNA barcoding
DNA replication
Answer:
Sería códigos de ADN
Explanation:
Espero ayudarte
PLS HELP TIMES TEST I HAVE 49 MINUTES LEFT AND THERES 41 QUESTIONS IM ON 14
Answer:
1: The mRNA would not be sythensised
Explanation:
RNA polymerase - used in transcription to initiate replication of mRNA.
If mutated then it will result to no mRNA synthesied????
Activity 1: One Word
Description Directons: Outline your previous knowledge about the topic given below.
1. Cycie
2. Materials
3. Ecosystem
4. Water Cycle
5. Nirogen Cycie
6. Oxygen Carbon - Dioxide Cycle
7. Bacteria
8. Evaporation
9. Nitrification
10. Photosynthesis
Answer:
1. Cycle - A cycle is the series of events regularly repeated in a particular order or sequence. The cycle can be repeated at a particular time or whenever they are started.
2. Material - It is the mixture or combination of various substances in a particular ratio. It can be living or nonliving and makes an object or organs.
3. Ecosystem - It is a geographical area where different forms of life or living or biotic factors and abiotic factors interact with one another and live in a stable form.
4. water cycle - hydrologic cycle or water cycle the cycle that deals with the movement of the water above or below of the earth through various forms. Sun plays important role in evaporating the water.
5. Nitrogen cycle - It is the cycle that deals with the movement of nitrogen or nitrogen compounds through various spheres of earth. It is a biogeochemical cycle which means it converts to various chemical compounds and interacts with the biosphere and atmosphere.
6. Oxygen Carbon - Dioxide Cycle - oxygen and carbon dioxide are the main part of the living organism to produce energy. Plants use atmospheric carbon dioxide to produce energy and release oxygen for cellular respiration.
7. Bacteria - it is a microscopic unicellular prokaryotic organism that different from eukaryotic and archaea organisms. These organisms lack a nucleus and double-membrane-bound organelles.
8. Evaporation - it is the process of the water cycle in which heat comes from the sun converts water into water vapor that moves to the atmosphere and forms clouds.
9. Nitrification - It is one of the processes of the nitrogen cycle in which oxidation of NH3 to nitrite followed by the oxidation of the nitrite to nitrate with the help of organisms present in the roots of plants and soil.
10. Photosynthesis is the process that converts light energy to chemical energy with the help of atmospheric water and carbon dioxide and makes glucose and oxygen.
The purpose of using the binomial scientific names is to
Give each organism a unique name
Give each species a unique name
Study how the environment affects different organisms
Study the evolution of life
Protect endangered species
Answer:
study the evolution of life
Which statements describe organic compounds
Answer:
i don't know
Explanation:
twrnsjshdhidid
How is blood different after it is pumped through the capillaries in the intestines?
Answer: nutrients are absorbed then it goes into the bloodstream through capillaries. These nutrients include acids, vitamins and fatty acids
Explanation:
the answer is above
In legumes, Rhizobium bacteria are more commonly observed in the roots. The Rhizobium provided usable nitrogen while the plant in return provides shelter and food to the bacteria. What is the type of relationship between these both?Single choice.
(1 Point)
(a) Symbiotic, as both benefit each other for food.
(b) Competition, as both compete for atmospheric nitrogen.
(c) Parasitic, as Rhizobium consumes food prepared by plants.
(d) Saprophytic, as Rhizobium decomposes the roots of the plant and feed on them.
Answer:
(a) Symbiotic, as both benefit each other for food
Explanation:
Symbiosis is a close relationship between two species in which at least one species benefits. For the other species, the relationship may be positive, negative, or neutral. There are three basic types of symbiosis: mutualism, commensalism, and parasitism.
Mutualism is a symbiotic relationship in which both species benefit. An example of mutualism involves goby fish and shrimp. The nearly blind shrimp and the fish spend most of their time together. The shrimp maintains a burrow in the sand in which both the fish and shrimp live. When a predator comes near, the fish touches the shrimp with its tail as a warning. Then, both fish and shrimp retreat to the burrow until the predator is gone. From their relationship, the shrimp gets a warning of approaching danger. The fish gets a safe retreat and a place to lay its eggs.
Commensalism is a symbiotic relationship in which one species benefits while the other species is not affected. One species typically uses the other for a purpose other than food. For example, mites attach themselves to larger flying insects to get a “free ride.” Hermit crabs use the shells of dead snails for homes.
Parasitism is a symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed. Many species of animals are parasites, at least during some stage of their life. Most species are also hosts to one or more parasites.
So. we can easily say that the relationship between them is symbiotic.
Some mutations, or changes in the sequence of DNA, do not have any effect on the characteristics of the organism. Why is this?
The protein built from this mutated sequence is deactivated by the cell.
The cell recognizes mutations and ignores them when expressing the gene.
The mutated sequence still codes for the same amino acid.
The immune system repairs the mutated sequence during development.
Answer:
The mutated sequence still codes for the same amino acid.
Explanation:
Mutations that have no effect on an organism's characteristics have mutated sequences that still code for the same amino acid.
Because it codes for the same amino acid that it was intended to, the proteins made from it will remain the same.
This means that there will be no effect or change on the organism's characteristics, because the protein will be the exact same.
So, the correct answer is that The mutated sequence still codes for the same amino acid.
Answer:
The mutated sequence still codes for the same amino acid.
Explanation:
This type of mutation is called a silent mutation. Despite a nucleotide in the codon being changed, the original codon and the mutated codon still code for the same amino acid. This results in no observable effect on the characteristics of the organism.
Hope that helps.
malaria is caused by—
Answer:
caused by plasmodium and transmitted by infected Andes mosquitoes
Glycolysis takes place in _________________.
The cytoplasm
The mitochondrial intermembrane space
The mitochondrial matrix
The endoplasmic reticulum
Answer:
It occurs in the cytoplasm. Glycolysis also involves two stages which break up glucose. In the 1st stage, Glucose is broken into two phosphorylated 3-carbon compounds through a series of reactions.
Food chains end with a species that…
(a) Describe why DNA replication is said to be a semiconservative process. Explain how random mutations such as those in pathogens with a mutator phenotype may arise in the DNA of an organism.
Answer:
DNA replication is semi-conservative because each helix that is created contains one strand from the helix from which it was copied. The replication of one helix results in two daughter helices each of which contains one of the original parental helical strands.
A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. ... Mutations can also occur as the result of exposure to environmental factors such as smoking, sunlight and radiation.
Btw :
stay safe! :3
(a) In order to understand why the replication of DNA is said to be semi conservative, there is a need to understand what really goes on during replication.
During replication, the two strands of the DNA first become separated.Each strand then makes a complementary copy of itself.The original double strand does not reform, instead, the old strands each forms a double strand by coupling with their newly synthesized complimentary strands.The fact that the 2 double strands DNA that forms at the end of the replication process each consist of one old and one newly synthesized strand is why replication is said to be semi conservative. The old strands remain conserved but are now separated into new double strands.
(b) Random mutations such as those in pathogens with a mutator phenotype may arise in the DNA of an organism due to a host of factors:
mistakes during replicationmutation due to external factors such as chemicals, UV radiation, etc.When this happens, the DNA sequence is altered and this alteration creates one or more phenotypic effects.
More on DNA replication and mutation can be found here: https://brainly.com/question/10787
Which of the following are characteristics of Ascomycota? Check all that apply.
flagellated spores
spores produced in the ascus
lack reproduction phase
important in the food industry
important in the digestion of animals
can cause disease in plants
can cause disease in animals
2. spores produced in the ascus
4. important in the food industry
6. can cause disease in plants
Explanation:
hope this helps :)
Ascomycota is the phylum of fungi which produce spores in the ascus, important in the food industry, and can cause disease in plants. Thus, the correct options are 2, 4, and 6
What are ascomycetes?Ascomycota is a phylum of the kingdom fungi that, together with the Basidiomycota phylum of the fungi. The members of ascomycota are commonly known as the sac fungi or ascomycetes. Ascomycota is the largest phylum of Fungi, with over 64,000 species.
Ascomycetes are commonly known as sac-fungi as they are produced in a sac-like structure called as ascus. Inside this ascus, non-motile microscopic sexual spores are formed which is a defining feature of this kingdom fungi.
Therefore, the correct options are 2, 4, and 6.
Learn more about Ascomycota here:
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A human gene was initially identified as having three exons and two introns. The exons are 456, 224, and 524 bp, whereas the introns are 2.3 kb and 4.6 kb.
Required:
a. Draw this gene, showing the promoter, introns, exons, and transcription start and stop sites.
b. Surprisingly, this gene is found to encode not one but two mRNAs that have only 224 nucleotides in common. The original mRNA is 1204 nucleotides, and the new mRNA is 2524 nucleotides. Use your drawing to show how this one region of DNA can encode these two transcripts.
Identify the part of the plant where photosynthesis primarily occurs.
Answer: In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll.
Explanation:
Answer:
on plato its the first box
Explanation:
In a particular population, the allele frequency of the ABO blood type alleles are as follows: IA is 20%, IB is 30% and i is 50%. If mating is random and the population is in Hardy-Weinberg equilibrium, what percentage of the population will have type O blood type
Answer:
The genotypic frequency F(ii) = 0.25 = 25%
Explanation:
Due to technical problems, you will find the complete explanation in the attached files
In the blood type cases involving the ABO group, the type of inheritance here is the co-dominance type of inheritance
The percentage of the population with type O blood will be 25%
Type A (IA) is dominant to type O (i) and at the same time type B (IB) is also dominant to type O (i).Using the equation - p² + 2pq + q² + 2pr + r² + 2qr = 1Where p² indicates the genotypic frequency with type A (AA) blood and q² indicates genotypic frequency of BB and r² indicates the genotypic frequency of OO.Since we are finding the percentage with type O blood (r²) where r (allelic frequency of type O) is 0.5 (50%)
r² = 0.5² = 0.25 = 25%.
Learn more about co-dominance: https://brainly.com/question/3578928
