Q. No.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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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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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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Level 1: 80%+
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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 |
95%
Level 1: 80%+
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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
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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Level 1: 80%+
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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
1. Cervix
2. Uterus
3. Ampullary region of the fallopian tube
4. Infundibulum of the fallopian tube
Subtopic: Fertilization |
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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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