At which stage of meiosis the chromosome number reduces to half?

Anaphase I

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Anaphase II

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Telophase I

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Telophase II

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Anaphase I
Chromosome number reduces to half during anaphase I of meiosis. The sister chromatids remain together while the homologous obtained from the other parent seperate. Kinetochore microtubules shorten, pulling homologous chromosomes to opposite poles. Non-kinetochore microtubules lengthen, pushing the centrosomes farther apart. The cohesin from the chromosome arms is degraded while the cohesin surrounding the centromere remains protected.
So, the correct answer is option A.

Suggest Corrections

Similar questions

In which one of the following options the stages of mitosis have been given in correct sequence ?
(a) Prophase, metaphase, telophase, anaphase
(b) Prophase, metaphase, anaphase, telophase
(c) Anaphase, telophase, prophase, metaphase
(d) Telophase, anaphase, prophase, metaphase

Q. In which stage of the cell cycle the chromosomes are maximally condensed
(1)prophase
(2)metaphase
(3)anaphase
(4)telophase

Q. Pick the correct statements.
A. Synapsis of homologous chromosomes takes place during prophase I of meiosis.
B. Division of centromeres takes place during anaphase I of meiosis.
C. Spindle fibres disappear completely in telophase of mitosis.
D. Nucleoli reappear at telophase I of meiosis.

Q. Minimum coiling in chromosome is at
(a) prophase
(b) metaphase
(c) anaphase
(d) telophase

Q. Chromosome is most coiled at (in mitosis)
(a) telophase
(b) anaphase
(c) metaphase
(d) prophase

Join BYJU'S Learning Program