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Test: Human Reproduction- Assertion & Reason Type Questions- 1 - NEET MCQ


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10 Questions MCQ Test - Test: Human Reproduction- Assertion & Reason Type Questions- 1

Test: Human Reproduction- Assertion & Reason Type Questions- 1 for NEET 2024 is part of NEET preparation. The Test: Human Reproduction- Assertion & Reason Type Questions- 1 questions and answers have been prepared according to the NEET exam syllabus.The Test: Human Reproduction- Assertion & Reason Type Questions- 1 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Human Reproduction- Assertion & Reason Type Questions- 1 below.
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Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 1

Directions: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A) : The region outside the seminiferous tubules is called interstitial spaces, which contain Leydig's cells.

Reason (R) : Leydig's cells synthesize and secrete testicular hormones called androgen.

Detailed Solution for Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 1
Hypothalamus releases GnRH. This hormone stimulates the secretion of LH, which further acts on interstitial cells of Leydig and induces the release of androgen.
Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 2

Directions: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A) : Urethra in human male act as a urogenital canal.

Reason (R) : Urethra carries only urine while sperms are carried by vasa deferentia only.

Detailed Solution for Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 2

Urethra is the canal through which both urine and semen is discharged therefore it is called urinogenital canal.

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Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 3

Directions: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A) : Large members of mitochondria are present in the middle piece of sperm.

Reason (R) : Numerous mitochondria in the middle piece of sperm produce energy which is required for their movement.

Detailed Solution for Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 3
Mitochondria is a powerhouse organelle. It stores energy in the form of ATP. This energy helps in sperm motility.
Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 4

Directions: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A) : In human male, testes are extra- abdominal and lie in scrotal sacs.

Reason (R) : Scrotum acts as thermoregulator and keeps temperature lower by 2°C for normal sperm production. 

Detailed Solution for Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 4

The scrotum is a bag-like structure that helps to protect the testicles. Testicles make sperm and for this, they need to be cooler than the inside of the body. This is why the scrotum is located outside the body.

Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 5

Directions: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A) : Vasa efferentia develop from rete testis.

Reason (R) : Sperm conduction takes place by the ciliary current.

Detailed Solution for Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 5
Vasa efferentia are short, straight tubes, developed from rete testis. They help in sperm conduction which takes place by the ciliary current.
Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 6

Directions: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A) : The secretory phase in the human menstrual cycle is also called the luteal phase.

Reason (R) : During the luteal phase development of corpus luteum and secretion of progesterone occurs.

Detailed Solution for Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 6
The luteal phase begins after ovulation. It lasts about 14 days, and ends just before a menstrual period. In this the ruptured follicle closes after releasing the egg and forms the corpus luteum.
Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 7

Directions: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A) : Oxytocin helps in parturition.

Reason (R) : Oxytocin acts on uterine muscle and causes expulsion of the foetus.

Detailed Solution for Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 7
Oxytocin acts on uterine muscles and also increases the production of prostaglandins, which increase the contractions further.
Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 8

Directions: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion: The gamete formed in males determines the sex of the offspring.

Reason: Sex determination in human depend upon cumulative effect of some genes of X and Y chromosomes.

Detailed Solution for Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 8

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

This is correct. In humans, sex determination occurs when an egg is fertilized by a sperm. The sperm carries either an X chromosome or a Y chromosome, and the chromosome it carries determines the sex of the offspring. The gamete formed in males (the sperm) determines the sex of the offspring because it carries either an X or Y chromosome. The cumulative effect of genes on the X and Y chromosomes plays a role in sex determination, as certain genes on these chromosomes are responsible for the development of male or female characteristics.

Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 9

Directions: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A) : Endometrium is a mucosal tissue made up of two layers.

Reason (R) : It is an inner lining of the uterus. Each month it thickens and renews itself, preparing for pregnancy.

Detailed Solution for Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 9
It's two layers-the stratum functionalis and stratum basalis. If conception takes place, the embryo implants into the endometrium.
Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 10

Directions: In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion (A) : The leydig cells of testis are present outside the seminiferous tubules.

Reason (R) : Testis helps to synthesise and secrete hormones called androgens.

Detailed Solution for Test: Human Reproduction- Assertion & Reason Type Questions- 1 - Question 10
Leydig cells are under the action of ICSH or Interstitial cell-stimulating hormone, which is commonly known as Luteinizing hormone. In males, it is responsible for the growth and development of Leydig cells located in the testes. Leydig cells are located outside the seminiferous tubules which are known as the interstitial spaces. These cells are further responsible for the synthesis and secretion of a class of testicular hormones known as androgens.
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