Test: Gametogenesis And Menstrual Cycle

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This mock test of Test: Gametogenesis And Menstrual Cycle for NEET helps you for every NEET entrance exam. This contains 5 Multiple Choice Questions for NEET Test: Gametogenesis And Menstrual Cycle (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Gametogenesis And Menstrual Cycle quiz give you a good mix of easy questions and tough questions. NEET students definitely take this Test: Gametogenesis And Menstrual Cycle exercise for a better result in the exam. You can find other Test: Gametogenesis And Menstrual Cycle extra questions, long questions & short questions for NEET on EduRev as well by searching above.

QUESTION: 1

Spermatogenesis is promoted by:

A.
Estrogens
B.
Progesterone
C.
Testosterone
D.
Oxytocin

Solution:

As male attain puberty. Leydig cells surrounding seminiferous tubules start to secret testosterone hormone which initiate Spermatogenesis in Seminiferous tubules.It is the process by which stem cells develop into mature spermatozoa. There are three phases:
(1) Spermatocytogenesis (Mitosis)
(2) Meiosis
(3) Spermiogenesis.

QUESTION: 2

Identify the wrong statement from the following.

A.
High level of estrogen triggers the ovulatory surge.
B.
Oogonial cells start to proliferate and give rise to functional ova in regular cycle 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.

Solution:

The process of formation of a mature female gamete is called oogenesis.
Unlike sperm formation that starts at puberty, egg formation begins before birth.
Primordial germ cells complete the proliferative stage or oogenesis in the early embryonic stage when million of gamete mother cells (oogonia) are formed within each fetal ovary, no more oogonia are formed and added after birth.

QUESTION: 3

The membranous cover of the ovum at ovulation is:

A.
Zona pellucida
B.
Zona radiata
C.
Corona radiata
D.
Chorion

Solution:

The ovum is enclosed by the inner thin, transparent, non-cellular coat zona pellucida and outer thick coat corona radiata, During fertilization sperm first comes in contact with the corona radiata and zona pellucida to reach the plasma membrane of the egg(ovum).

QUESTION: 4

A human female reaches menopause around the age of:

A.
70 years
B.
50 years
C.
25 years
D.
15 years

Solution:

The age at which a woman starts having menstrual periods is also not related to the age of menopause onset. Most women reach menopause between the ages of 45 and 55, but menopause may occur as earlier as ages 30s or 40s, or may not occur until a woman reaches her 60s.

QUESTION: 5

Which among the following has 23 chromosomes?

A.
Zygote
B.
Spermatogonia
C.
Secondary oocyte
D.
Oogonia

Solution:

Spermatogonia are the cells on the inside wall of seminiferous tubules and consist of 46 chromosomes.
Oogonia are also diploid and are formed in the fetal ovary.
Zygote is also diploid and fertilised ovum formed by fusion of male and female gametes.
Secondary oocyte has 23 chromosomes and is formed by meiosis-I of primary oocyte.