CameraIcon

SearchIcon

MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Zygotene

Which of the ...

Question

Which of the following occurs in meiosis but not in mitosis?

A

Attachment of spindle fibres to the kinetochores

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

B

Pairing of homologous chromosomes at the metaphase plate

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

C

Replication of DNA prior to the start of cell division

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

D

Separation of sister chromatids at anaphase

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

Open in App

Solution

The correct option is B
Pairing of homologous chromosomes at the metaphase plate

The pairing of homologous chromosomes, called synapsis, does not occur in mitosis. Synapsis only occurs in meiosis.

The attachment of spindle fibres to the kinetochores of chromosomes, replication of DNA prior to the start of cell division and the separation of sister chromatids, all occur in both mitosis as well as meiosis.

Suggest Corrections

thumbs-up

0

Similar questions

Q. Match the terms to these definitions.
Centromere, centrosome, chromatin, chromosome, spindle, cell cycle, karyotype, meiosis, mitosis, sister chromatids, interphase, metaphase
.......... One of two genetically identical chromosome units that are the result of DNA replication.

Q. Which of the following statement(s) is/are correct about meiosis?
I. Meiosis involves pairing of homologous chromosomes and recombination between them.
II. Two diploid cells are formed at the end of meiosis-II.
III. Meiosis involves two sequential cycles of nuclear and cell division called meiosis-I and meiosis-II, but only a single cycle of DNA replication.
IV. Meiosis-I is initiated after the parental chromosome replication, which produces identical sister chromatids at the S-phase.

Q. Which of the following events takes place during anaphase stage of mitosis?
I. Spindle fibres attach to kinetochores of chromosomes
II. Centromeres split and chromatids separate
III. Chromatids move to opposite poles
IV. Nucleolous, Golgi complex and E.R. reform

Q. The events shown below occur during different phases:
a. Centromere splits, chromatids separate and move to opposite poles, chromatids are now called chromosomes.
b. Chromosomes cluster at opposite poles, decondensation of chromosomes, reappearance of the nuclear membrane, golgi bodies, and the ER.
c. Chromosomal replication.
d. Kinetochores attach to spindle fibres and chromosomes are arranged at the equatorial plate.
e. Condensation of chromosomal materials.

Which of the following correctly identifies each of the phases described?

In meiosis, at the start of _____ the sister chromatids separate and the daughter chromosomes move up to the poles of the spindle.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Meiosis

BIOLOGY

Watch in App

explore_more_icon

Explore more

Standard XII Biology

Join BYJU'S Learning Program

CrossIcon