Cell Cycle & Cell Division

Q.1: The Mitosis phase usually ends with ______________.

a) karyokinesis

b) cytokinesis

c) both

Q.2: Which of the following events characterize the anaphase stage ?

i) Chromatids move to opposite poles.

ii) Centromeres split and chromatids separate

iii) Spindle fibres attach to kinetochores of chromosomes.

a) only i

b) only iii

c) i and ii

Q.3: Nucleolus, golgi complex and ER reform during ___________.

a) Telophase

b) Metaphase

c) Anaphase

Q.4: Which of the following statements is incorrect regarding Mitosis ?

i) Mitosis is usually restricted to diploid cells only.

ii) The growth of multicellular organisms is due to mitosis.

iii) A very significant contribution of mitosis is cell repair.

a) i and iii

b) All

c) None

Q.5: During ___________ stage, chromosomes start pairing together.

a) leptotene

b) zygotene

c) pachytene

Q.6: _______________ enzyme mediates the crossing over of two homologous chromosomes.

a) recombinase

b) ligases

c) lyases

Q.7: Which of the following is/are the key features of Meiosis ?

i) Meiosis involves pairing of homologous chromosomes.

ii) Four haploid cells are formed at the end of Meiosis II.

iii) Meiosis involves two sequential cycles of nuclear and cell division.

a) i and iii

b) ii and iii

c) i, ii and iii

Answers:

Q.1: The Mitosis phase usually ends with ______________.

a) karyokinesis

b) cytokinesis

c) both

Q.2: Which of the following events characterize the anaphase stage ?

i) Chromatids move to opposite poles.

ii) Centromeres split and chromatids separate

iii) Spindle fibres attach to kinetochores of chromosomes.

a) only i

b) only iii

c) i and ii

Q.3: Nucleolus, golgi complex and ER reform during ___________.

a) Telophase

b) Metaphase

c) Anaphase

Q.4: Which of the following statements is incorrect regarding Mitosis ?

i) Mitosis is usually restricted to diploid cells only.

ii) The growth of multicellular organisms is due to mitosis.

iii) A very significant contribution of mitosis is cell repair.

a) i and iii

b) All

c) None

Q.5: During ___________ stage, chromosomes start pairing together.

a) leptotene

b) zygotene

c) pachytene

Q.6: _______________ enzyme mediates the crossing over of two homologous chromosomes.

a) recombinase

b) ligases

c) lyases

Q.7: Which of the following is/are the key features of Meiosis ?

i) Meiosis involves pairing of homologous chromosomes.

ii) Four haploid cells are formed at the end of Meiosis II.

iii) Meiosis involves two sequential cycles of nuclear and cell division.

a) i and iii

b) ii and iii

c) i, ii and iii

Published by Priya Prakash

In the midst of winter, i found there was within me an invincible summer ~ Albert Camus

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