Class 12th Exam Biology VVI Objective Question Human Reproduction Chapter
3. HUMAN REPRODUCTION
1. The sperm penetrates through zona pellucida with the help of:
(A) Secretion from acrosome
(B) Hydrolytic enzymes
(C) Neck with centroids
(D) Both (A) and (B)
| ANSWER :- (A) |
2. Blood and circulatory systems originate from which germinal layer ?
(A) Ectoderm
(B) Mesoderm
(C) Endoderm
(D) None of these
| ANSWER :- (B) |
3. Middle piece of mammalian sperm contains :
(A) nucleus
(B) vacuole
(C) mitochondria
(D) centriole
| ANSWER :- (C) |
4. The process of formation of gametes is called :
(A) Gametogenesis
(B) Cytokinesis
(C) Sporogenesis
(D) Meiocytes
| ANSWER :- (A) |
5. What is fertilisation ?
(A) Fusion of egg with male nucleus
(B) Fusion of egg with secondary nucleus
(C) Fusion of egg with synergid
(D) None of these.
| ANSWER :- (A) |
6. Semen is frozen in :
(A) liquid nitrogen
(B) refrigerator
(C) ice
(D) all of these
| ANSWER :- (A) |
7. What is the number of chromosomes present in human gametes?
(A) 21
(B) 23
(C) 44
(D) 46
| ANSWER :- (B) |
8. Diploid is :
(A) Ovum
(B) Pollen
(C) both ‘A’ and ‘B’
(D) Zygote
| ANSWER :- (D) |
9. The vas deferens receives duct from the seminal vesicle and opens into urethra as :
(A) epididymis
(B) ejaculatory duct
(C) efferent ductule
(D) ureter
| ANSWER :- (B) |
10. Urethral meatus refers to the :
(A) urinogenital duct
(B) opening of vas deferens into urethra
(C) external opening of the urinogenital duct
(D) muscles surrounding the urinogenial duct
| ANSWER :- (C) |
11. Morula is a developmental stage:
(A) between the zygote and blastocyst
(B) between the blastocyst and gastrula
(C) after the implantation
(D) between implantation and parturition
| ANSWER :- (A) |
12. The membranous cover of the ovum at ovulation is :
(A) corona radiata
(B) zona radiata
(C) zona pellucida
(D) chorion
| ANSWER :- (A) |
13. Process of fusion of haploid cells is
(A) Cell cycle E
(B) Meiosis
(C) Mitosis
(D) Syngamy
| ANSWER :- (D) |
14. Which of the following technique is not included in IVF ?
(A) Intracellular sperm insemination
(B) Intrauterine insemination
(C) Embryo transfer
(D) Intrauterine device
| ANSWER :- (D) |
15. Uterus. is related to :
(A) Male Reproductive system
(B) Female Reproductive system
(C) Plant Reproductive system
(D) All of these
| ANSWER :- (B) |
16. The anterior portion of sperm is covered by a cap like structure known as:
(A) Acrosome
(B) Mesosome
(C) Episome
(D) Spherosome
| ANSWER :- (A) |
17. Secondary sexual characters in females develop in response to hormone
(A) Relaxin
(B) Progesterone
(C) Estrogen
(D) Gonadotropin
| ANSWER :- (C) |
18. First Menstrual cycle at the time of puberty is called :
(A) Ovum
(B) Sperm
(C) Menses
(D) Menarche
| ANSWER :- (D) |
19. Graafian follice occur :
(A) In humanithyroid
(B) In human female’s ovary
(C) In frog’s ovary
(D) In Rabbits testis
| ANSWER :- (B) |
20. Progesterone hormone is formed by :
(A) Corpus calosum
(B) Corpus uterai
(C) Corpus luteum
(D) Corpus albicans
| ANSWER :- (C) |
21. Which one of the following is not a male accessory gland ?
(A) Seminal vesicle
(B) Ampulla
(C) Prostate
(D) Bulbourethral gland
| ANSWER :- (B) |
22. Which among the following has 23 chromosomes ?
(A) Spermatogonia
(B) Zygote
(C) Secondary oocyte
(D) Oogonia
| ANSWER :- (C) |
23. Which of the following hormones is not secreted by human placenta ?
(A) hCG
(B) Estrogens
(C) Progesterone
(D) LH
| ANSWER :- (D) |
24. Male hormone is produced from :
(A) Ovary
(B) Sperm
(C) Testis
(D) Kidney
| ANSWER :- (C) |
25. Sertoli cells are found in :
(A) Testis
(B) Uterus
(C) Ovary
(D) Liver
| ANSWER :- (A) |
26. Acrosome is a part of:
(A) Head of human sperm
(B) Middle part of human sperm
(C) Primary oocyte
(D) Blastocyst
| ANSWER :- (A) |
27. The total number of eggs produced by a healthy human female during life time :
(A) 4000
(B) 400
(C) 40
(D) 365
| ANSWER :- (B) |
28. Sertoli cells are found in :
(A) Testis
(B) Uterus
(C) Ovary
(D) Liver
| ANSWER :- (A) |
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