Which is the correct statements from the following: I....

Name: Problem 113, Chapter 10: Objective Biology for NEET
Uploaded: 2021-11-15T06:54:01-08:00
Duration: 1 min
Channel: Parvati Devi
Description: Which is the correct statements from the following: I. Synapsis of homologous chromosomes takes place during prophase I of meiosis. II. Division of centromeres takes place during anaphase I of meiosis. III. Spindle fibres disappear completely in telophase of mitosis. IV. Nucleoli reappear at telophase I of meiosis. (a) I only (b) III only (c) I and II only (d) I, III and IV only

Which is the correct statements from the following: I. Synapsis of homologous chromosomes takes place during prophase I of meiosis. II. Division of centromeres takes place during anaphase I of meiosis. III. Spindle fibres disappear completely in telophase of mitosis. IV. Nucleoli reappear at telophase I of meiosis. (a) I only (b) III only (c) I and II only (d) I, III and IV only

Which is the correct statements from the following:
I. Synapsis of homologous chromosomes takes place during prophase I of meiosis.
II. Division of centromeres takes place during anaphase I of meiosis.
III. Spindle fibres disappear completely in telophase of mitosis.
IV. Nucleoli reappear at telophase I of meiosis.
(a) I only
(b) III only
(c) I and II only
(d) I, III and IV only

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Key Concepts

Synapsis

Synapsis is the process during which homologous chromosomes pair and align tightly along their lengths during prophase I of meiosis. This alignment facilitates genetic recombination, contributing to genetic diversity in the resulting gametes.

Centromere Division

Centromere division refers to the splitting of the centromere that allows the separation of sister chromatids. In the context of meiosis, this division does not occur during anaphase I, but rather in meiosis II, where sister chromatids are separated.

Spindle Fibres

Spindle fibres are microtubule structures that form the spindle apparatus during cell division to segregate chromosomes. They disassemble as the cell exits mitosis, with their disappearance typically occurring in telophase when the nuclear envelope is rebuilt.

Nucleoli Reformation

Nucleoli reformation is the process by which the nucleoli, the regions within the nucleus responsible for ribosomal RNA synthesis, reappear during the telophase stage of cell division after disassembly during earlier phases. In meiosis, nucleoli reappear as part of the reestablishment of nuclear organization.

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