The kinetochore fibres contract and spindle or pole fibres elongate during:
Correct answer: D. Anaphase I
- A. Prophase I
- B. Metaphase I
- C. Telophase I
- D. Anaphase I
Explanation
[A] During prophase no separation of chromosomes occurs instead they only condense and thicken during prophase[B] During Metaphase the cell's chromosomes align in the centre(equatorial line) of dividing cell[C] During telophase spindle disappears and nucleus reforms around each of the membrane[D] Kinetochore is a protein attached with centromere,holding two chromatids together. Spindle fibres are connected to kinetochore, spindle fibres contacts causing kinetochore to contact.It is during Anaphase when each pair of chromosomes is separated into two identical chromosomes.
This question appeared on the UHS MDCAT 2010 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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 Chromosomes questions
The karyotype of an individual is _ of chromosomes.
Sickle cell Anaemia is an example of which type of chromosomal defect?
Which chromosomal abnormality in humans causes aggressive and antisocial behavior?
Gene for albinism in man is present on chromosome number:
In which phase of the cell division is the metabolic activity of the nucleus is high?
When chromosomes uncoil, the nucleoli are reformed and two nuclei are the two poles of the cell; stage is known as: