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zzz [600]
3 years ago
14

This is the process in which two chromosomes exchange DNA during prophase of meiosis.

Biology
2 answers:
Sergio039 [100]3 years ago
8 0
Crossing over between two chromosomes
Anna007 [38]3 years ago
4 0

Answer:

Crossing-over

Explanation:

During Prophase I, which is the first division stage of meiosis I, homologous chromosomes pair up with each chromosome aligning with its homologue partner to form a TETRAD structure. At this stage, segments of each homologous chromosome break and get refixed interchangeably i.e trade parts. This process is called Crossing-over or RECOMBINATION

Crossing-over is the process whereby two chromosomes of a homologous pair (non-sister chromatids) exchange equal segments with each other to form two recombinant chromosomes.

Crossing-over accounts for genetic variation due to the swapping of genetic material. Some of the daughter cells receive daughter chromosomes with recombined alleles. Due to this genetic recombination, the offspring have a different set of alleles and genes than their parents do.

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Answer:

The minimum mass of dissolved cholesterol that the new system must be able to detect is 0.43 milligrams.

Note: The question is incomplete. The complete question is:

<em>GenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect borderline high levels of dissolved cholesterol (170, to 200. mg/dL), using a blood sample that is as small as 250 μL Calculate the minimum mass in milligrams of cholesterol that the new system must be able to detect Be sure your answer has the correct number of significant digits.</em>

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