Breast feeding during initial period

(1) Good for healthy baby

(2) Recommended by doctors

(3) Essential to develop resistance for the new-born babies.

(4) All of these

Subtopic:  Mammary Gland & Lactation |
 97%
From NCERT
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Ovaries are the primary sex organs in human females because they:
I. Produce the female gamete
II. Produce the hormone that regulates the development of secondary sexual characters
1. Both I and II
2. Only I
3. Only II
4. None

Subtopic:  Ovary |
 88%
From NCERT
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FSH:

1. Acts on Sertoli cells and stimulates secretion of some factors that help in spermiogenesis

2. Acts on Sertoli cells and inhibits secretion of some factors that help in spermiogenesis

3. Acts on Leydig cells and stimulates secretion of some factors that help in spermiogenesis

4. Acts on Leydig cells and inhibits secretion of some factors that help in spermiogenesis

Subtopic:  Seminiferous Tubules & Spermatogenesis |
 81%
From NCERT
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The functions of male sex accessory ducts and glands are maintained by:

1. Hypothalamic releasing hormone

2. Pitutary gonadotropins

3. Adrenal cortex steroids

4. Testicular androgens

 

Subtopic:  Male Reproductive System |
 66%
From NCERT
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At the birth of the female child, the follicles in her ovaries contain:

(1) Primary oocytes that have been arrested at the S phase of the cell cycle

(2) Primary oocytes that have been arrested at the Prophase I of Meiosis I

(3) Secondary oocytes that have been arrested at the Prophase I of Meiosis I

(4) Secondary oocytes that have been arrested at the Metaphase II of Meiosis II

 

Subtopic:  Ovary |
 86%
From NCERT
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What is released at ovulation?

(1) Primary oocyte arrested at meiosis I

(2) Primary oocyte arrested at meiosis II

(3) Secondary oocyte arrested at meiosis I

(4) Secondary oocyte arrested at meiosis II

 

Subtopic:  Ovary |
 55%
From NCERT
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During the follicular phase of the menstrual cycle which of the following occur?
I. The primary follicle grows and becomes fully mature Graafian follicle
II. The endometrium of the uterus regenerates through proliferation
1. Only I
2. Only II
3. I and II
4. None

Subtopic:  Menstrual Cycle: Pre Ovulatory Phase |
 83%
From NCERT
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LH surge:

1. is a dramatic sudden increase in the levels of LH during the early part of menstrual cycle and is responsible for ovulation.

2. Is a dramatic sudden decrease in the levels of LH during the early part of menstrual cycle and is responsible for ovulation.

3 is a dramatic sudden decrease in the levels of LH during the mid-menstrual cycle and is responsible for ovulation.

4. is a dramatic sudden increase in the levels of LH during the mid-menstrual cycle and is responsible for ovulation.

 

Subtopic:  Menstrual Cycle: Pre Ovulatory Phase | Menstrual Cycle: Luteal Phase |
 78%
From NCERT
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Corpus luteum secretes large amounts of:

(1) LH

(2) FSH

(3) Progesterone

(4) Estrogen

 

Subtopic:  Menstrual Cycle: Luteal Phase |
 92%
From NCERT
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Consider the following two statements:
I. Not all copulations lead to fertilization and pregnancy
II. Fertilization can occur if the ovum and the sperms are simultaneously transported to the fallopian tubes.
1. Both I and II are correct and II correctly explains I
2. Both I and II are correct but II does not explain I
3. I is correct but II is incorrect
4. I is incorrect but II is correct

Subtopic:  Fertilization: Part 2 | Fertilization |
 81%
From NCERT
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