Process of Oogenesis

Q. Identify A, B, C and D in the schematic representation of oogenesis.

1. A-Mitosis and differentiation, B-Meiosis I and II, C-Second polar body, D-First polar body
2. A-Mitosis, B-Meiosis II, C-Ovum, D-First Polar Body
3. A-Mitosis and differentiation, B-Meiosis I, C-First polar body, D-second polar body
4. A-Meiosis I, B-Meiosis II, C- First polar body, D- Second polar body

Q.

What happens if follicle does not rupture?

Q.

What is the difference between primary oocyte and secondary oocyte?

Q.

How many polar bodies are formed during oogenesis in humans?

Q.

What is the fate of the polar bodies during oogenesis?

Q. First polar body is formed during the formation of secondary oocytes after the completion of

1. meiosis II
2. meiosis I
3. mitosis
4. interphase I

Q. Chromosome type in which p-arm is absent is called as ________.

1. Metacentric
2. Sub-metacentric
3. Acrocentric
4. Telocentric

Q.

What are oogonia cells?

Q. Rupture of the Graafian follicle to release the secondary oocyte is called .

1. leutinisation
2. ovulation
3. fertilisation
4. implantation

Q.

Give the functions of Ovary.

Q.

What is the fate of a Graafian Follicle after ovulation?

Q.

Where does meiosis occur in females?

Q.

A mature Graffian follicle is generally present in the ovary of a healthy human female around______

1. 11-17 day of menstrual cycle

2. 18-23 day of menstrual cycle

3. 5-8 day of menstrual cycle

4. 24-28 day of menstrual cycle

Q.

What is the difference between a Graafian follicle and a corpus luteum?

Q. Primary oocyte covered by a layer of granulosa cell is called .

1. oogonia
2. primary follicle
3. Graafian follicle
4. ovum

Q.

In which phase do the primary oocytes get arrested during early foetal development?

1. Prophase of Meiosis II

2. Metaphase of Meiosis I

3. Metaphase of Meiosis II

4. Prophase of Meiosis I

Q.

Which structure helps in collecting ovum after ovulation?

Q. What is oogenesis? Explain with the help of diagram.

Q.

The egg is liberated from the ovary in_____.

Q. Select the correct statements regarding ovaries.
I. Ovaries produce the female gamete.
II. Ovaries produce the hormone that regulates the development of secondary sexual characters.
III. FSH is produced by the ovary.

1. I and II
2. I and III
3. II and III
4. I, II and III

Q. hormone stimulates the development of oogonia into mature Graafian follicle.

1. Leutinising
2. Progesterone
3. Follicle stimulating
4. Estrogen

Q.

In human females, an event that reflects the onset of the reproductive phase is

1. Growth of body

2. Changes in hair pattern

3. Change in voice

4. Menstruation

Q.

What Causes the Follicle to Mature?

Q.

The two oviducts in a human female unite in a elastic bag like structure known as

1. Vagina

2. Uterus

3. Fallopian tube

4. Cervix

Q. Chemicals present in middle lamella

1. Cellulose
2. Lignin
3. Hemicellulose
4. Pectin

Q. How many ova are released during the middle of the menstrual cycle?

1. 1
2. 2
3. 3
4. 4

Q. Secondary oocyte is formed

1. After mitosis of germinal cells
2. Before ovum maturation
3. After fertilization
4. Before fertilization

Q. Label the following layers around ovum properly

1. A - Zona Pellucida; B - Corona Radiata; C - Perivitelline Space
2. A - Corona Radiata; B - Zona Pellucida;
   C - Perivitelline Space
3. A - Corona Radiata; B - Perivitelline Space; C - Zona Pellucida
4. A - Perivitelline Space; B - Zona Pellucida; C - Corona Radiata

Q. In oogenesis haploid egg is fertilised by sperm at which stage?

1. Primary oocyte
2. Secondary oocyte
3. None of the above
   
4. Oogonium

Q. Which one of the following is true for menstrual cycle?

1. Secretory phase: Development of corpus luteum and increase secretion of progesterone
2. Proliferative phase: Rapid regeneration of myometrium and maturation of Graafian follicle
3. Menstruation: Breakdown of myometrium and ovum not fertilized
4. Ovulation: LH and FSH attain peak level and sharp fall in the secretion of progesterone