Sexual Reproduction in Animals

Q. Which type of reproduction is present in figure below

1. Vegetative reproduction
2. Asexual reproduction
3. Sexual reproduction
4. Binary fission

Q.

Given below are few statements about sexual reproduction.
Choose the correct set of statement(s).

1. Involves fusion of male and female gametes.

2. Females usually produce more gametes when compared to males.

3. It is an elaborate, complex and slow process.

4. Offsprings are genetically identical among themselves but different from parents.

1. 1 and 2 only

2. 1 and 3 only

3. 1, 2 and 3

4. All the above

Q.

Conjugation phenomenon of sexual reproduction is seen in

1. E.coli

2. Paramecium

3. Both (a) and (b)

4. Hydra

Q. Meiosis is important because:

1. It generates variations
2. Meiosis and mitosis are the same and are interchangeable
3. Both (a) and (b)
4. It generates haploid gametes for sexual reproduction

Q. Select T and F for true and false statements respectively.
i) Birds living in nature lay eggs seasonally.
ii) Birds in captivity are made to lay eggs throughout the year.
iii) Captive birds laying eggs is related to reproduction.
iv) The females of placental mammals show cyclical changes in the activities of ovaries but have steady hormones during the reproductive phase.

1. i-T, ii-T, iii-F, iv-F
2. i-T, ii-F, iii-F, iv-T
3. i-T, ii-T, iii-T, iv-F
4. i-T, ii-T, iii-T, iv-T

Q. Sexual reproduction is

1. Uniparental
2. Biparental
3. Both (a) and (b)
4. Neither (a) or (b)

Q.

The correct sequence of different phases of an organism is

1. Vegetative phase - Senescence phase - Reproductive phase

2. Juvenile phase - Reproductive phase - Maturity phase

3. Juvenile phase - Maturity Phase - Old age

4. Vegetative phase - Old age - Senescence phase