The measured DNA levels ranged from 3 to 6 picograms per nucleus. In which stage of the cell cycle was the nucleus with 6 picograms of DNA?
Correct answer: D. G2
- A. G0
- B. G1
- C. S
- D. G2
Explanation
If the nucleus has 6 picograms of DNA, it suggests that it is in the G2 phase of the cell cycle. This is because during the S phase of interphase, DNA replication occurs, resulting in the doubling of DNA content. Therefore, in the G2 phase, just before mitosis begins, the DNA content is at its peak, having undergone replication.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Cell Structure and Function
Animal, plant, prokaryotic and eukaryotic cells are compared through their membranes, cell walls, nuclei and cytoplasmic organelles. The work includes the structures and functions of mitochondria, chloroplasts, ribosomes, endoplasmic reticulum, Golgi apparatus and lysosomes, as well as chromosome organization and the distinction between chromatin and chromosomes.
Practise Cell Structure and Function
2,478 free Cell Structure and Function MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Cell Structure and Function questions
In which group of eukaryotic organisms does the nuclear envelope remain intact during mitosis?
During which phases of mitosis are chromosomes composed of two chromatids?
Chromosomes first become visible during which phase of mitosis?
A group of cells is assayed for DNA content immediately following mitosis and is fond to have an average of 8 picograms of DNA per nucleus. Those cells would have how many picograms at the end of the S phase and at the end of G2.
The somatic cells derived from a single-celled zygote divide by which process?
The chromosomes of many of the squashed onion root tip cells are plainly visible. In some cells, replicated chromosomes are aligned along the center (equator) of the cell. These particular cells are in which stage of mitosis?