Chapter 3 Human Reproduction MCQs for Class 12 Biology

Page – 1  (Q.1 – Q.40)

Chapter 3 Human Reproduction MCQs for Class 12 Biology

Here students can practice Chapter 3 Human Reproduction MCQs for Class 12 Biology. All the MCQs are divided into several sub-pages. Each page has 40 MCQs, for the next page just scroll down and click on the buttons. Also you can practice Class 12 Biology MCQs (Multiple Choice Questions) for other units.

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Q 1.: Leydig’s cells are present in 

(A) Seminiferous tubules and help in maturation of sperms

(B) Interstitial space and help in maturation of sperms 

(C) Seminiferous tubules and secrete testosterone 

(D) Interstitial space and secrete testosterone 

Option – D 

Q 2.: The spermatids are matured into spermatozoa by the process called :

(A) Spermatocytogenesis 

(B) Spermiogenesis 

(C) Spermiation 

(D) Spermatogenesis 

Option – B 

Q 3.: Which of the following hormones is not secreted by the human placenta ?

(A) Human chorionic gonadotropin (hCG)

(B) Human placental lactogen (hPL) 

(C) Human growth hormone (hGH) 

(D) Progesterone 

Option – C 

Q 4.: Which of the following glands contributes the greatest percentage to semen ?

(A) Seminal vesicles 

(B) Prostate gland 

(C) Bulbourethral glands 

(D) Testes 

Option – A  

Q 5.: Which human male accessory reproductive duct receives a duct from the seminal vesicle ?

(A) Urethra 

(B) Vasa deferentia 

(C) Epididymis 

(D) Rete testis 

Option – B 

Q 6.: In the absence of fertilization, corpus luteum :

(A) Increase the secretion of both progesterone and estrogen 

(B) Stop secreting progesterone but increase the secretion of estrogen

(C) Stop secreting estrogen but increase the secretion of progesterone 

(D) Degenerate 

Option – D 

Q 7.: The function of Acrosome in sperm is to :

(A) Help the sperm in swimming inside the female reproductive tract 

(B) Release an enzyme that breakdown the membrane of the ovum 

(C) Produce base to neutralize the acidic environment of the female reproductive tract 

(D) Metabolise the sugars provided by the semen for energy 

Option – B 

Q 8.: The first movements of the fetus and the appearance of hair on the head are usually observed during :

(A) Third month 

(B) Fourth month 

(C) Fifth month 

(D) Sixth month 

Option – C  

Q 9.: Sertoli cells are found in 

(A) Adrenal cortex and secrete adrenalin 

(B) Ovaries and secrete progesterone 

(C) Seminiferous tubules and provide nutrition to germ cells and spermatids. 

(D) Pancreas and secrete cholecystokinin 

Option – C  

Q 10.: The second maturation division of the mammalian ovum occurs 

(A) Until the nucleus of the sperm has fused with that of the ovum 

(B) Until after the ovum has been penetrated by a sperm 

(C) Shortly after ovulation while entering in fallopian tube 

(D) None of these 

Option – B 

Q 11.: Which one of the following statements about human sperm is correct ? 

(A) Acrosome is derived from Golgi body and it produce lysins which dissolve the egg envelope facilitating fertilization 

(B) Acrosome has a conical pointed structure used for piercing and penetrating the ovum, resulting in fertilization 

(C) Acrosome serves no particular function 

(D) Acrosome serves as a sensory structure leading the sperm towards the ovum 

Option – A 

Q 12.: The storage site of mature sperm in humans is : 

(A) Seminal vesicles 

(B) Vasa deferentia 

(C) Rete testis 

(D) Epididymis 

Option – D  

Q 13.: In natural abortion, menstruation is triggered by decline in the amount of :

(A) Progesterone 

(B) Estrogen 

(C) FSH 

(D) LH 

Option – A   

Q 14.: Capacitation occurs in : 

(A) Vasa deferantia 

(B) Fallopian tube 

(C) Epididymis 

(D) Rete testis 

Option – B   

Q 15.: Identify the correct statement on ‘inhibin’

(A) Produced by granulosa cells in ovary and inhibits the secretion of LH

(B) Produced by granulosa cells in ovary and inhibits the secretion of FSH 

(C) Produced by nurse cells in testes 

(D) Inhibits the secretion of LH, FSH and prolactin 

Option – B   

Q 16.: Ectopic pregnancies are referred to as : 

(A) Implantation of embryo at site other than uterus 

(B) Implantation of defective embryo in the uterus 

(C) Pregnancies terminated due to the hormonal imbalance 

(D) Pregnancies with genetic abnormality 

Option – A 

Q 17.: Which of the following is true regarding sperm ? 

(A) Fertilizin : For penetrating egg membrane  

(B) Hyaluronidase : For penetrating egg membrane 

(C) Acrosin : Dissolves corona radiata 

(D) Capacitation : Takes place in penis 

Option – C 

Q 18.: The ‘cells of Rauber’ are

(A) Inner cell mass of blastocoel 

(B) Secretory cells of endometrium in uterus 

(C) Outer cells of trophoblast in contact with uterine wall 

(D) Cells of trophoblast, in contact with inner cell mass of blastocyst 

Option – D 

Q 19.: Foetal ejection reflex in human female is induced by 

(A) Release of oxytocin from pitutary 

(B) Differentiation of mammary glands 

(C) Fully developed foetus and placenta 

(D) Pressure exerted by amniotic fluid 

Option – C 

Q 20.: In humans, at the end of the first meiotic division, the male germ cells differentiated into the 

(A) Primary spermatocytes 

(B) Secondary spermatocytes 

(C) Spermatogonia 

(D) Spermatids 

Option – B 

Q 21.: Which of the following statement is correct regarding menstrual cycle ? 

(A) Proliferative phase is characterised by the increased production of progesterone 

(B) Corpus luteum secretes large amount of estrogen 

(C) LH induces rupturing of Graafian follicle 

(D) Both LH and FSH attain a peak level in secretory phase 

Option – C  

Q 22.: Which of the following induces parturition ? 

(A) Oxytocin 

(B) Vasopressin 

(C) GH 

(D) TSH 

Option – A   

Q 23.: After ovulation Graafian follicle regress into 

(A) Corpus atresia 

(B) Corpus callosum 

(C) Corpus Luteum 

(D) Corpus albicans 

Option – C   

Q 24.: Morula is a development stage : 

(A) After implantation 

(B) Between the zygote and blastocyst 

(C) Between the blastocyst and gastrula 

(D) Between implantation and parturition 

Option – B  

Q 25.: Identify the odd one from the following : 

(A) Fimbriae 

(B) Infundibulum 

(C) Isthmus 

(D) Labia minora 

Option – D  

Q 26.: Sertoli cells are regulated by the pituitary hormone known as : 

(A) FSH 

(B) LH 

(C) Estrogen 

(D) Progestogen 

Option – A  

Q 27.: After birth, colostrum is released from mammary glands which is rich in 

(A) Protein, antibodies and low in fat 

(B) Protein and high fat 

(C) High fat and antibodies

(D) High fat and protein 

Option – A  

Q 28.: In spermatogenesis, reduction division of chromosomes occurs during conversion of : 

(A) Spermatogonia to primary spermatocytes 

(B) Primary spermatocytes to secondary spermatocytes 

(C) Secondary spermatocytes to spermatids 

(D) Spermatids to sperm 

Option – B  

Q 29.: At what stage of life is oogenesis initiated in a human female ? 

(A) At puberty 

(B) During Menarch 

(C) During Menopause 

(D) During embryonic development 

Option – D   

Q 30.: Structure connecting the fetus to placenta is 

(A)  Amnion 

(B) Yolk sac 

(C) Umbilical cord

(D) Chorion 

Option – C   

Q 31.: During pregnancy, the corpus luteum persists under the influence of : 

(A) FSH 

(B) LH 

(C) Progesterone 

(D) Chorionic gonadotropin 

Option – D   

Q 32.: The early stage of human embryo distinctly possesses 

(A) Gill slits 

(B) Gills 

(C) External ear 

(D) Eye brows 

Option – A   

Q 33.: Which of the following lytic enzyme is released by the sperm ? 

(A) Trypsin 

(B) Helicase 

(C) Hyaluronidase 

(D) Pepsin 

Option – C   

Q 34.: Where does the ovum receive the sperm ? 

(A) Vegetal pole 

(B) Animal pole 

(C) Zona pellucida 

(D) Both ‘A’ and ‘B’

Option – A   

Q 35.: The correct sequence of stages in spermatogenesis are : 

(A)  Spermatids → Spermatogonia → Spermatocyte → Sperm 

(B) Spermatogonia → Spermatocyte  Spermatids → Sperm 

(C) Spermatogonia → Spermatids → Spermatocyte → Sperm 

(D) Spermatocyte  Spermatogonia → Spermatids → Sperm 

Option – B   

Q 36.: The function of corpus luteum is to produce 

(A) hCG  

(B) Relaxin 

(C) Progesterone 

(D) Estrogen 

Option – C   

Q 37.: Spermiation is the process of the release of sperms from 

(A) Vasa deferentia 

(B) Epididymis 

(C) Seminiferous tubules 

(D) Vasa efferentia 

Option – C   

Q 38.: Seminal plasma in humans is rich in 

(A) Fructose and calcium 

(B) Glucose and calcium 

(C) Potassium and calcium 

(D) Progesterone and testosterone 

Option – A  

Q 39.: Which of the following events is not associated with ovulation in human female ? 

(A) Release of secondary oocyte 

(B) LH surge 

(C) Fully development of Graafian follicle 

(D) Decrease in estradiol 

Option – D  

Q 40.: In human females, meiosis-I is not completed until 

(A) Uterine implantation 

(B) Puberty 

(C) Fertilization 

(D) Birth 

Option – B  

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