CBSE Class 11 Biology Cell Cycle and Cell Division Assignments

Cell Cycle And Cell Division MCQ Questions with Answers Class 11 Biology

Question : Best stage to observe shape, size and number of chromosomes is ______

(a) interphase

(b) metaphase

(c) prophase

(d) telophase

Answer :(b)

Question : Interkinesis is a

(a) stage between meiosis I and meiosis II.

(b) stage between two mitotic divisions.

(c) interphase.

(d) both (b) and (c)

Answer :(a)

Question : Chiasmata are first seen in ______

(a) leptotene

(b) zygotene

(c) pachytene

(d) diplotene

Answer :(d)

Question : Terminalization occurs during ______

(a) mitosis

(b) diakinesis

(c) meiosis II

(d) cytokinesis

Answer :(b)

Question : Which phase of cell cycle is known as quiescent stage ?

(a) M phase

(b) G0 phase

(c) G1 phase

(d) S phase

Answer :(b)

Question : Recombination involves

(a) crossing over

(b) chromosome duplication

(c) spindle formation

(d) cytokinesis

Answer :(a)

Question : Cell plate grows from

(a) wall to centre

(b) centre to walls

(c) one wall to another

(d) simultaneously

Answer :(b)

Question : Electron micrographs of which stage indicate that chromosomes accompanied by the formation of complex structure called synaptonemal complex?

(a) Zygotene

(b) Pachytene

(c) Diplotene

(d) Diakinesis

Answer :(a)

Question : Select the correct statement with respect to mitosis.

(a) Chromatids separate but remain in the centre of the cell in anaphase.

(b) Chromatids start moving towards opposite poles in telophase.

(c) Golgi complex and endoplasmic reticulum are still visible at the end of prophase.

(d) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.

Answer :(d) 

Question : Which of the following statements related to G0 stage of the cell cycle are correct?

(i) It is a quiescent stage.

(ii) In this phase, cell cycle is stopped.

(iii) G0 cells do not grow or proliferate but metabolically active

Answer :(d)

Question : In Meiosis,

(a) division of nucleus twice but DNA replicates only once.

(b) division of nucleus twice and DNA replicates twice.

(c) division of nucleus once and replication of DNA is also once.

(d) division of nucleus once and DNA - replication is twice.

Answer :(a)

Question : In mitosis, nucleolus and nuclear membrane disappear at

(a) interphase

(b) prophase

(c) metaphase

(d) telophase

Answer :(b)