Module 1.2 Verma & Agarwal

Question 1

Basis:

Types of cells

Answer 1

Mitosis
Somatic cells

Meiosis
Germ cells during gametogenesis

Question 2

Basis:

Number of divisions

Answer 2

Mitosis
Whole process completes in one sequence

Meiosis

2 Successive divisions occur

Question 3

Basis:

Prophase

Answer 3

Mitosis
Short duration; no substage
No pairing of homologous chromosomes or synapsis
No chiasma formation
No exchange of genetic material between chromosomes
Occur in dyads

Meiosis
Longer prophase I with 5 stages
Pairing of homologous chromosomes
Chiasma formation
Exchange of genetic materials between non-sister chromatids
Occur as tetrads

Question 4

Basis:

Metaphase

Answer 4

Mitosis
Centromeres directed tiowards equator, arms towards poles

Meiosis
Centromeres directed towards poles and arms towards the equator

Question 5

Basis:

Anaphase

Answer 5

Mitosis
Chromosomes are monads (one chromatid)

Meiosis
Chromosomes are dyads (two chromatids, one centromere)

Question 6

Basis:

Telophase

Answer 6

Mitosis
Always occurs

Meiosis
Telophase I sometimes omitted

Question 7

Basis:

Results

Answer 7

Mitosis
1 diploid parent cell = 2 diploid daughter cells

Meiosis
1 diploid parent cell = 4 haploid daughter cells