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Rainbow [258]
3 years ago
10

Why is the longer chromosome pair used to model crossing over?

Biology
1 answer:
nekit [7.7K]3 years ago
6 0
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
<span>Using the longer chromosomal pair when modeling crossing-over helps the observer's see the pattern in a spread-out example.</span>
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The suns energy will decrease and your energy will increase!
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A fruit fly of genotype B R/b r is testcrossed with b r/b r. In 84 percent of the meioses, there are no chiasmata between the li
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Answer:

4 percent (4%)

Explanation:

A single crossover occurs between two (non-sister) chromatids belonging to homologous chromosomes. In this case, 16 percent of the meioses have a single crossover, thereby it will produce 8 percent of the chromosomes with the original (parental) combination in the progeny and the remaining 8 percent should be recombinants. From this result, it is reasonable to conclude that half of these recombinants should be 'Br' (and the other remaining 4 percent should be recombinants 'bR'), and therefore the answer is 4 percent (4%).

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What is the geologic time scale?
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3 years ago
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During a biology lab practical, students were required to identify a metal by its density. All the metals were painted green so
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Answer:

C) Re-do the measurements, several times, and take the average density before making a decision.

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For the correct identification of the metal, weather its nickel or copper, Carl should repeat the experiment several times and take the average density before making the decision. It is important because it reduces the chance of error and ensure the data integrity.  The more the sample size is, lessen would be the error.  

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Red maple tree seeds are dispersed by the wind. This species of tree can be found in fields, woods, and even wetlands. What type
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Answer:

Red maple tree seeds are dispersed by the wind during spring and summer time that are found in fields,woods,and wetlands.

Explanation:

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