In order for anaphase to begin, which of the following must occur?
Correct answer: D. Kinetochores must attach to the metaphase plate
- A. Chromatids must lose their kinetochores
- B. Cohesin must attach the sister chromatids to each other
- C. Cohesin must be cleaved enzymatically
- D. Kinetochores must attach to the metaphase plate
Explanation
In order for anaphase to begin, the kinetochores must attach to the metaphase plate. During metaphase, replicated chromosomes align along the metaphase plate, and the spindle fibers attach to the kinetochores, which are protein structures located at the centromere of each chromosome. Once all chromosomes are properly aligned and attached, the cell proceeds to anaphase.
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
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?
The somatic cells derived from a single-celled zygote divide by which process?
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.
Why do chromosomes coil during mitosis?
Which of the following best describes how chromosomes move toward the poles of the spindle during mitosis?
The research team used the setup to study the incorporation of labeled nucleotides into a culture of lymphocytes and found that the lymphocytes incorporated the labeled nucleotide at a significantly higher level after a pathogen was introduced into the culture. What did they conclude?