NCERT - Human Reproduction Questions and Answers of Class 12 Biology | GkSeries

Sports GK Questions and Answers 2024 (Latest Updated)

Awards & Honours GK Questions 2024 (Latest Updated)

Questions
46 In oogenesis which cell body are concentrated in cytoplasm of primary oocyte of the growth phase ?
1 Mitochondrial
2 Golgicomplex
3 Ribosomes
4 Above all

Answer: Above all
47 Which period is of the cycle is known as a proliferative phase ?
1 1 to 5 days
2 15 to 28 days
3 6 to 14 days
4 14 to 15 days

Answer: 6 to 14 days
Advertisement
Article and Schedule Quiz Start Test!
DOWNLOAD CURRENT AFFAIRS PDF FROM APP
48 After fertilization which changes prevents entry of other sperms in to the oocytes
1 Egg membrane
2 Vitelline membrane
3 Fertilization membrane
4 (1) and (3) both

Answer: Fertilization membrane
49 What time period is required to form blastocyst ?
1 One week
2 8 days
3 two week
4 9 days

Answer: One week
50 In human normally what is the period of pregnancy ?
1 266 days
2 280 days
3 270 days
4 275 days

Answer: 266 days
51 In humans embryonic development chorionicvilli which co-operate with the tissue of the mothers uterus to forms ...
1 Placenta
2 Umbilical cord
3 Embryonic disc
4 Amniotic cavity

Answer: Placenta
52 At the time of delivery which hormones stimulate more frequent and powerful construction of the uterus ?
1 Oxytocin and Prostaglandins
2 Estrogen and Progesterone
3 Oxytocin and Vasopressin
4 Estrogen and Prostaglandins

Answer: Oxytocin and Prostaglandins
53 Which pair is not correct ?
1 teste - scrotalsac
2 ovary - upper pelvic cavity
3 vas deferens - ejaculatory duct
4 Fallopion tube - Ovulation

Answer: Fallopion tube - Ovulation
54 The semini ferous tubules of the testies are lined bye the germinal epithelium consisting...
1 Cells of sertoli
2 Spermatocytes
3 Spermatogonium
4 Spermatids

Answer: Cells of sertoli
55 In oogenesis diploid cell produce _______ ovum.
1 1
2 2
3 3
4 4

Answer: 1
56 The correct order of the changes in hormones level at first day to 28th day of menstrual cycle.
1 estrogen and progesterone level is lower --> Estrogen rising --> Progesterone rising.
2 estrogen and progesterone level is higher --> Estrogen lower --> Progesterone rising.
3 estrogen and progesterone level is lower --> Estrogen rising --> Progesterone lower.
4 estrogen and progesterone level is higher --> Estrogen rising --> Progesterone rising.

Answer: estrogen and progesterone level is lower --> Estrogen rising --> Progesterone rising.
57 Function of the placenta is ..
1 to deliver nutrients to embryo
2 to deliver oxygen to embryo
3 remove wastes from the embryonic blood
4 all of these

Answer: all of these
58 The fluid within the blastocyst is formed by the cells of _______ ?
1 Trophoblast
2 Blastomere
3 None of this
4 Iner layer of blastocyte

Answer: Trophoblast
59 In menstrual cycle on which days rises progesterone levels ?
1 1 to 5 days
2 6 to 14 days
3 14 to 15 days
4 15 to 28 days

Answer: 15 to 28 days
60 When sperm penetrate secondary oocyte during its unequal meioticdivision, how many polar body (bodies) is are produced ?
1 One
2 Two
3 Three
4 None of this

Answer: Three

Random GK Questions

Q. Name the country which won its first ever Gold medal in any event in Asian Games history in 2014 edition.
Q. Dr. Rajendra Prasad was elected as the first President of India by
Q. Which of the following has not been a component of the agricultural strategy that brought about the Green Revolution ?
Q. A boat will submerge when it displaces water equal to its own
Q. When the joint sittings of the two houses of Parliament are held?
Q. Mushroom cultivation is not useful in

Chapters

Assam Direct Recruitment Test Series

Teacher Eligibility Test

Assam Direct Recruitment Test Series