Human Reproduction Test

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Human Reproduction Test - 98

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Weekly Quiz Competition

Question 1
1 / -0

Statement about gametogenesis?

A
Spermatogenesis begins at puberty whereas oogenesis begins during embryonic stages

B
Immature male germ cells are called spermatogonia

C
The diploid spermatogonia periodically undergo meiosis

D
Spermatogonia in seminiferous tubules increase in number by mitosis

Solution

The process of formation and differentiation of gametes is called gametogenesis. In human beings, spermatogenesis begins at puberty at the age of 13 to 14 years and continues uninterrupted throughout he life of adults though it declines in later life. whereas oogenesis begins during embryonic stages.
Question 2
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Which event becomes possible due to formation of egg membrane?

A
Sperm can enter into ovum

B
Prevents entry of other sperms in to ovum

C
Prevents the process of fertilization so pregnancy is prevented

D
Makes fertilization process possible and causes pregnancy

Solution

The sperm that successfully reaches the secondary oocyte is initially prevented entry by both corona radiata and the zona pellucida. When the sperm reaches the corona radiata, their motility allows the sperm to push through the cell layers. After the sperm has made a pathway through the corona radiata, they release digestive enzymes from their acrosomes to penetrate the zona pellucida. When one sperm successfully penetrates the zona pellucida and its nucleus enters the secondary oocyte, immediate changes occur in both the zona pellucida and the oocyte, so that no other sperm can enter. In essence, the zona pellucida hardens, preventing entry of other sperms into the ovum.

So, the correct answer is option B.
Question 3
1 / -0

Vas deferens receives a duct from seminal vesicle and opens into urethra as ________.

A
Urethral meatus

B
Ejaculatory duct

C
Ureter

D
Epididymis

Solution

The union of the vas deferens with the duct of the seminal vesicle with the Ejaculatory duct. They pass through the prostate and open into the urethra. Ureter connects the kidney with urinary bladder whereas epididymis is found in the scrotum. so, 'the correct option is Ejaculatory duct'
Question 4
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Ova are released from ovary under the effect of LH-Hormones, after which of the following event.

A
Before meiosis and production of polar body

B
Meiosis-I and before production of polar body

C
Meiosis and at the time of production of polar body

D
Meiosis II and after the formation of polar body

Solution

Primary oocyte undergoes meiosis 1 and the first polar body and secondary oocyte are produced. Secondary oocyte which is arrested at metaphase 2 develops into the graffian follicle and after the secretion of the LH hormone occurs which leads to ovulation.
So the correct option is 'meiosis II and after the formation of the polar body'.
Question 5
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Spermatogenesis is induced by?

A
FSH

B
ICSH

C
STH

D
ATH
Question 6
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Which of the following statements regarding the sexual development of the foetus is correct?

A
In the absence of a Y chromosome the sexual development of a foetus will follow the male pattern

B
The development of the foetal gonads into the male type depends on the presence of oestrogen

C
The sex of an individual is determined by a set of genes on the X chromosome

D
The sex of an individual is determined by genes on the Y chromosome
Question 7
1 / -0

Which statement is incorrect regarding female external genitalia ?

A
Mons pubis is a cushion of fatty tissue covered by skin and pubic hairs

B
Clitoris lies at the upper junction of labia minora below the urethral opening

C
Hymen is not a reliable indicator of virginity

D
Labia majora are fleshy folds of tissue
Question 8
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Spermatogenesis is a process in which

A
Spermatids change into spermatozoa

B
Spermatogonia produce a spermatid

C
Spermatocytes give rise to spermatozoa

D
Dormant spermatozoa become active fore ejacuation
Question 9
1 / -0

Identify the wrong statement from the following.

A
High levels of estrogen triggers the ovulatory surge

B
Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards

C
Sperms released from seminiferous tubules are poorly motile/non-motile

D
Progesterone level is high during the post ovulatory phase of menstrual cycle
Question 10
1 / -0

Rewrite the terms in the correct order so as to be in a logical sequence

A
Implantation ovulation, child birth, gestation, fertilisation

B
coids, ovum, sperm, sperm duct, urethra, vagina

C
Sperm duct, pents, testes, sperms, semen

D
Puberty, menopause, menstruals, menarche

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Re-Attempt Weekly Quiz Competition

Human Reproduction Test - 98

Result

Human Reproduction Test - 98

Score

-

Rank

-

SHARING IS CARING

Question 1

Spermatogenesis begins at puberty whereas oogenesis begins during embryonic stages

Immature male germ cells are called spermatogonia

The diploid spermatogonia periodically undergo meiosis

Spermatogonia in seminiferous tubules increase in number by mitosis

Solution

Question 2

Sperm can enter into ovum

Prevents entry of other sperms in to ovum

Prevents the process of fertilization so pregnancy is prevented

Makes fertilization process possible and causes pregnancy

Solution

Question 3

Urethral meatus

Ejaculatory duct

Ureter

Epididymis

Solution

Question 4

Before meiosis and production of polar body

Meiosis-I and before production of polar body

Meiosis and at the time of production of polar body

Meiosis II and after the formation of polar body

Solution

Question 5

FSH

ICSH

STH

ATH

Question 6

In the absence of a Y chromosome the sexual development of a foetus will follow the male pattern

The development of the foetal gonads into the male type depends on the presence of oestrogen

The sex of an individual is determined by a set of genes on the X chromosome

The sex of an individual is determined by genes on the Y chromosome

Question 7

Mons pubis is a cushion of fatty tissue covered by skin and pubic hairs

Clitoris lies at the upper junction of labia minora below the urethral opening

Hymen is not a reliable indicator of virginity

Labia majora are fleshy folds of tissue

Question 8

Spermatids change into spermatozoa

Spermatogonia produce a spermatid

Spermatocytes give rise to spermatozoa

Dormant spermatozoa become active fore ejacuation

Question 9

High levels of estrogen triggers the ovulatory surge

Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards

Sperms released from seminiferous tubules are poorly motile/non-motile

Progesterone level is high during the post ovulatory phase of menstrual cycle

Question 10

Implantation ovulation, child birth, gestation, fertilisation

coids, ovum, sperm, sperm duct, urethra, vagina

Sperm duct, pents, testes, sperms, semen

Puberty, menopause, menstruals, menarche

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