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Dennis_Churaev [7]
3 years ago
7

Which of the following statements is true? Linked genes are found on different chromosomes. The observed frequency of recombinat

ion of two genes that are far apart from each other has a maximum value of 100%. Crossing over occurs during prophase II of meiosis. The closer two genes are on a chromosome, the lower the probability that a crossover will occur between them.
Biology
1 answer:
aev [14]3 years ago
3 0

The correct answer is option The closer two genes are on a chromosome, the lower the probability that a crossover will occur between them.

In case, two genes are present in very close proximity to one another, they would represent the phenomenon of linkage. Due to the the presence of the linkage between the two closely related genes, the crossing over between them would not occur. As the distance between the two genes is decreased, the linkage becomes more strong and reduced the chances of the crossing over. Hence, it can be said that the chance of the crossing over between two genes varies according to the distance between them.

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3 years ago
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8 0
3 years ago
Read 2 more answers
Phosphorus is required to synthesize the deoxyribonucleoside triphosphates used in DNA replication. A geneticist grows some E. c
Harlamova29_29 [7]

Answer:

<h2> After one round: one strand of DNA  will contain radioactive 3232P, while the other strand  will not contain any radioactive phosphate. </h2><h2> After two rounds:  here 50%  of DNA will have 3232P in both strands, while 50% will contain 3232P in one strand and nonradioactive in the other strand. </h2>

 

Explanation:

1. In the initial sample which is immediately removed after addition of radioactive isotope of phosphorus ( 3232P), hence there is  no incorporation of 3232P into the DNA because replication in the medium containing 3232P has not yet occurred.  

2. After one round of replication in  radioactive isotope of phosphorus ( 3232P) containing  medium, here  only one newly synthesized strand of DNA molecule will contain 3232P, while the other strand  will not contain any  radioactive isotope of phosphorus ( 3232P),  because DNA replication occurs in semi-conservative way.

3. After two rounds of replication in medium which contains radioactive isotope of phosphorus ( 3232P), here 50% of the DNA molecules will have  radioactive isotope 3232P in both strands, while the rest 50% will contain 3232P in only one strand and nonradioactive phosphorous in the other strand.

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3 years ago
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nikitadnepr [17]
<span>Which hormone is responsible for signaling the storage of blood glucose?

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