Choose the incorrect match.
1. Mons pubis – A cushion of fatty tissue covered with skin and pubic hair
2. Labia majora – Fleshy folds of tissue extending down from mons pubis
3. Ampulla of oviduct – Site of fertilization
4. Mammary lobes – 40-50 each breast
Subtopic:  Fertilization: Part 1 | Fertilization: Part 2 | Mammary Gland & Lactation | Female External Genitalia | Fertilization |
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Level 1: 80%+
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In which part of the human female reproductive system do the following events take place?
A. Release of semen by penis.
B. Release of a tiny first polar body.
C. Release of second polar body.
D. Implantation.
Identify the correct option for A, B, C  and D:

A B C D
1. Cervix Ovary Ovary Uterus
2. Cervix Abdominal cavity Fallopian tube Uterus
3.  Vagina Ovary Abdominal cavity Uterus
4. Vagina Ovary Isthmis-ampullary 
junction of
fallopian tube
Uterus
Subtopic:  Fertilization | Implantation | oogenesis |
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During pregnancy:

1. All events of menstrual cycle stop and there is no menstruation
2. Events of menstrual cycle continue but there is no menstruation
3. Events of menstrual cycle continue but there is menstruation only in the first trimester
4. All events of menstrual cycle stop and there is menstruation only in the first trimester

Subtopic:  Fertilization: Part 1 | Fertilization |
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Level 1: 80%+
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Which of the following determines the sex of the baby in humans?
1. The presence of two X chromosomes in the zygote
2. The temperature during fertilization
3. Hormonal changes in the mother during pregnancy
4. Whether the fertilizing sperm carries an X or a Y chromosome
Subtopic:  Fertilization |
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Level 1: 80%+
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What brings about ‘acrosomal reaction’ in a sperm?
1. Its contact with zona pellucida of the ova
2. Reactions within the uterine environment of the female
3. Reactions within the epididymal environment of the male
4. Androgens produced in the uterus
Subtopic:  Fertilization |
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Assertion(A): Only one sperm can fertilise an ovum.
Reason(R): During fertilisation, a sperm comes in contact with the zona pellucida layer of ovum and induces changes in the membrane that blocks the entry of additional sperms.
 
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
Subtopic:  Fertilization: Part 1 | Fertilization: Part 2 | Fertilization |
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Implantation of the human embryo in the uterus occurs at the stage of:

1. Zygote
2. Morula
3. Blastocyst
4. Gastrula
Subtopic:  Fertilization | Implantation |
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What ensures that only one sperm can fertilize the ovum?

1. Corona radiata
2. Ground substance around ovum
3. Zona pellucida
​​​​​​​
4. Acrosome

Subtopic:  Fertilization: Part 2 | Fertilization |
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The ovum released during ovulation is transported to which region of the female reproductive system for fertilization?
1. Cervix
2. Uterus
3. Ampullary region of the fallopian tube
4. Infundibulum of the fallopian tube
Subtopic:  Fertilization |
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Level 1: 80%+
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The secondary oocyte completes the second meiotic division:
1. At the time of insemination
2. At puberty
3. At the time of fusion of a sperm with an ovum
4. Just before birth
Subtopic:  Fertilization |
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Level 1: 80%+
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