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Art [367]
3 years ago
8

The root tip cells of an onion plant have 8 pairs of chromosomes. Which of the following correctly describes the number of chrom

osomes in an onion root tip cell at a specific stage of the cell cycle?
A. At the end of the synthesis phase, an onion root tip cell will have a total of 32 unique chromosomes.
B. In metaphase, an onion root tip cell will have a total of 16 unique chromosomes composed of 32 chromatids.
C. After cytokinesis, a daughter onion root tip cell will have a total of 8 unique chromosomes.
D.After cytokinesis, a daughter onion root tip cell will have a total of 32 unique chromosomes. Plz answer quickly
Advanced Placement (AP)
2 answers:
iragen [17]3 years ago
5 0

Explanation:

The root tip cells of onion were used to test the potentially genotoxic effects of Alprazolam. The test was carried out according to Fiskesjö protocol (4, 11-12) with some modifications. Common onion (Allium cepa L.) has eight pairs of relatively large chromosomes (2n = 16) that allows for the easy detection of CAs.

slamgirl [31]3 years ago
4 0

Answer:

B

Explanation:

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