Assertion: Extra oxygen consumption in human, body is known as oxygen debt.

Reason: The extra oxygen is required by the body to oxidise the accumulated lactic acid produced during strenuous exercise.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

Assertion: In a regular medical examination of a small population, a 35 years old lady was found to have higher levels of oestrogens, progesterone in her blood.

Reason : The lady is 12 weeks pregnant.

• If both assertion and reason are true and reason is the correct explanation of assertion.

• If both assertion and reason are hue but reason is not the correct explanation of assertion.

• If assertion is true but reason is false.

• If both assertion and reason are false.

103.

What do A, B, C and D represent?

• A- Infundibulum; B- Fertilization; C- Myometrium; D- Morula

• A- Infundibulum; B- Fertilization; C- Endometrium; D- Blastocyst

• A- Isthmus; B- Fertilization; C- Myometrium; D- Blastocyst

• A- Isthmus; B- Fertilization; C- Endometrium; D- Morula

Which animal has the longest gestation period?

• Shark

• Walrus

• Elephant

• Dog

Assertion : Parturition is induced by neural signal in maternal pituitary.

Reason : At the end of gestation period, the maternal pituitary release prolactin which causes uterine contractions.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion.

• If assertion is true but reason is false

• If both assertion and reason are false

In humans at the end of first meiotic division, the male germ cells differentiate into the

• primary spermatocytes

• secondary spermatocytes

• spermatids

• spermatogonia

Which of the following statements is correct

• Monkey, apes and humans exhibit estrous cycle.

• Urine is pale yellow and slightly alkaline.

• Lots of enzymes are present in bile juice.

• Ovulation in humans is spontaneous.

Assertion: Now-a-days amniocentesis is banned.

Reason: Amniocentesis gives the information of any abnormality in the foetus and many other complications regarding pregnancy can be detected.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false.

Assertion: Corpus luteum is produced by Graafian follicle after ovulation.

Reason: It secretes estrogen which is necessary to maintain pregnancy.

• If both assertion and reason are true and reason is the correct explanation of assertion

• If both assertion and reason are true but reason is not the correct explanation of assertion

• If assertion is true but reason is false

• If both assertion and reason are false.

Acrosome reaction in sperm is triggered by

• capacitation

• release of lysin

• influx of Ca⁺⁺

• release of fertilizin