The Process of Gametogenesis (Meiosis)

Q.

Why meiosis and gametogenesis are interlinked?

Q. How many linkage groups are found in a pea plant (Pisum sativum)?

1. 7
2. 10
3. 14
4. 6

Q. In a dihybrid cross, the gametes of AaBb individual can be

1. Aa, Bb
2. AB, ab
3. AB, ab, aB
4. AB, Ab, aB, ab

Q.

Explain why meiosis and gametogenesis are always interlinked?

Q.

How does gene linkage affect inheritance?

Q. When does pairing occur in chromosomes in meiosis?

1. Leptotene
2. Zygotene
3. Pachytene
4. Diakinesis

Q.

A gamete normally contains ___.

1. All alleles of a gene

2. Many alleles of a gene

3. One allele of a gene

4. Two alleles of a gene

Q.

Is gametogenesis the same as meiosis?

Q.

A gamete normally contains

1. One allele of a gene

2. Two alleles of a gene

3. All alleles of a gene

4. Many alleles of a gene

Q. The amount of DNA in a mammalian cell in early prophase I is x. What is the amount of DNA in the same cell in anaphase I of meiosis?

1. x/4
2. x/2
3. x
4. 2x

Q.

Explain why meiosis and gametogenesis are always interlinked?

Q. Explain why meiosis and gametogenesis are always interlinked?

Q. In a diploid individual, how many alleles of a gene are present on each chromosome?

1. One
2. Two
3. Four
4. Three

Q.

How meiosis is related to gametogenesis?

Q. Match the following with respect to meiosis.

(a)	Zygotene	(i)	Condensation of chromatin begins
(b)	Leptotene	(ii)	Dissolution of synaptonemal complex
(c)	Diplotene	(iii)	Synapsis
(d)	Diakinesis	(iv)	Terminalisation of chiasmata

1. (a) (b) (c) (d)
   (iii) (ii) (i) (iv)
2. (a) (b) (c) (d)
   (iv) (iii) (i) (ii)
3. (a) (b) (c) (d)
   (iii) (i) (ii) (iv)
4. (a) (b) (c) (d)
   (i) (iii) (iv) (ii)

Q.

Genetic constitution of gamete gets decided in

1. Metaphase-I

2. Anaphase-I

3. Anaphase-II

4. Interkinesis

Q.

Gametogenesis involves

1. Mitosis

2. Meiosis

3. Amitosis

4. a (or) b

Q. When does pairing occur in chromosomes in meiosis?

1. Leptotene
2. Zygotene
3. Pachytene
4. Diakinesis

Q.

A gamete normally contains ___.

1. All alleles of a gene

2. Many alleles of a gene

3. One allele of a gene

4. Two alleles of a gene

Q. Meiosis takes place in

1. gemmule
2. megaspore
3. meiocyte
4. conidia

Q. First meiotic division during oogenesis occurs in

1. First polar body
2. Second polar body
3. Primary oocytes
4. Secondary polar body

Q.

A diploid organism is heterozygous for 4 loci, how many types of gametes can be produced?

Q.

Genetic constitution of gamete gets decided in ___.

1. Anaphase-I

2. Anaphase-II

3. Interkinesis

4. Metaphase-I

Q.

what you mean by saying haploid content of human dna is 3.3*10⁹ base pairs?

Q. The term "linkage" was coined by

1. W. Sutton
2. T. Boveri
3. G. Mendel
4. T.H. Morgan

Q.

Explain why meiosis and gametogenesis are always interlinked?

Q. Which chromosomal mutation is being shown in the diagram?

1. Inversion
2. Deletion
3. Duplication
4. Nondisjunction
5. Translocation

Q. One of the minute cell which separates from the animal egg during maturation is known as

1. Primary spermatogonium
2. Secondary oogonium
3. Polar body
4. Primary oogonium

Q. Arrange the following events of meiosis in the correct sequence.
(i) Crossing over
(ii) Synapsis
(iii) Alignment of chromosomes on the equatorial plate
(iv) Breakdown of nuclear membrane

1. (i), (ii), (iii), (iv)
2. (ii), (iii), (iv), (i)
3. (ii), (i), (iv), (iii)
4. (ii), (i), (iii), (iv)

Q. Multiple alleles are present

1. On different chromatids
2. On non-sister chromatids
3. At different loci on the same chromosome
4. At the same locus of the chromosome