Top 150+ Solved Cell Cycle and Cell divisons MCQ Questions Answer
Q. Crossing over involves.......
a. Duplication of chromosome
b. Deletion of chromosomes
c. Exchange of genetic matetial
d. Addition of chromosome
Q. Crossing over occurs between.......
a. Non – homologous chromatids of non homologous chromosomes
b. Non – sister chromatids of homologous chromosomes
c. Sister chromatids of homologous chromosomes
d. Sister chromatids of non homologous chromosome
Q. During meiosis centromere divides :
a. Only one at anaphase - II
b. Only once at anaphase – I
c. Twice in meiosis – I & II
d. Twice in each cell at the end of anaphase – I & II
Q. Which of the following occurs only during meiosis ?
a. Pairing of homologous chromosome
b. Separation of duplicated stands
c. Cytokinesis
d. Disappearance of nucleolus
Q. Select the correct option from Column-I and Column-II._ans_key_Column-I Column-II_ans_key_(A) Leptotene (p) Synapsis_ans_key_(B) Zygotene (q) Formation of bipolar spindle_ans_key_(C) Pachytene (r) Condensation of chromosones_ans_key_(D) Diakinesis (s) Crossing over
a. (A - s) (B - s) (C - p) (D - q)
b. (A - r) (B - r) (C - s) (D - p)
c. (A - r) (B - r) (C - s) (D - q)
d. (A - q) (B - q) (C - s) (D - r)
Q. Select the correct option from Column-I and Column-II._ans_key_Column-I Column-II_ans_key_(A) G1 phase (p) Synthesis of new DNA_ans_key_(B) G2 phase (q) Synthesis of DNA does not occur_ans_key_(C) S phase (r) DNA synthesis stops
a. (A - r) (B - p) (C - q)
b. (A - p) (B - r) (C - q)
c. (A - r) (B - q) (C - p)
d. (A - q) (B - r) (C - p)
Q. Due to crossing over, an opportunity for the exchange of genes becomes possible.
a. S - phase
b. Cell Cycle
c. Significance of meiosis
d. G2 phase
Q. Which of the following statement is true for prophase ?
a. At the end of this phase chromosomes disappear.
b. In this phase condensation of chromosome takes place along their lengths.
c. At the end of this phase nuclear membrane is formed
d. Centriole divides and arranged on opposite pole.
Q. Syncytium means........
a. small disc shaped structures at the surface of the centromeres.
b. a condition arises when karyokinesis is not followed by cytokinesis.
c. process of constriction of cytoplasm from peripheral region of cell that extends towards the centre.
d. a multinucleate condition arises when karyokinesis and cytokinesis is over.
Q. In animal cell........
a. constriction of cytoplasm begins from the peripheral region of the cell.
b. middle lamella made up of pectin develops.
c. constriction of cytoplasm begins from the centre of the cell.
d. (a) and (b) both
Q. Given below is a schematic break-up of the phases/stage of cell cycle :
a. C Karyokinesis
b. D Synthetic phase
c. A Cytokinesis Metaphase
d. B Metaphase
Q. Pair of homologous chromosomes become arranged at the equatorial plane of the cell.
a. Metaphase-II
b. Metaphae-I
c. Metaphase
d. Zygotene
Q. The period between two successive divisions is called......
a. Cell division
b. Cellcycle
c. Interphase
d. G1 phase