MCQs for Biology Class 12 with Answers Chapter 3 Human Reproduction
Students of class 12 Biology should refer to MCQ Questions Class 12 Biology Human Reproduction with answers provided here which is an important chapter in Class 12 Biology NCERT textbook. These MCQ for Class 12 Biology with Answers have been prepared based on the latest CBSE and NCERT syllabus and examination guidelines for Class 12 Biology. The following MCQs can help you to practice and get better marks in the upcoming class 12 Biology examination
Chapter 3 Human Reproduction MCQ with Answers Class 12 Biology
MCQ Questions Class 12 Biology Human Reproduction provided below have been prepared by expert teachers of grade 12. These objective questions with solutions are expected to come in the upcoming Standard 12 examinations. Learn the below provided MCQ questions to get better marks in examinations.
Question. LH surge occurs during which phase of the menstrual cycle?
(a) Menstrual phase.
(b) At the beginning of proliferative phase.
(c) Just before the end of the secretory phase.
(d) In the middle of the cycle.
Question. After a sperm has penetrated an ovum in the process of fertilisation, entry of furthered sperms is prevented by
(a) Development of the vitelline membrane
(b) Development of the pigment coat
(c) Condensation of yolk
(d) Formation of fertilisation membrane
Question. Scrotum of human males contains:
(a) Testis and epididymis, ejaculatory duct
(b) Testis, vasa efferentia and epididymis, ejaculatory duct
(c) Testis, vasa efferentia , epididymis, and a small part of vas deferens
(d) Testis, vasa efferentia , epididymis, small part of vas deferens and ejaculatory duct
Question. Identify the correct statement.
(a) The testis are situated inside the abdominal cavity
(b) The male germ cells undergo only mitotic divisions
(c) The interstitial space of seminiferous tubule contains Leydig cells which secrete testosterone
(d) Testicular hormones are called estrogen
Question. The function of ovary is:
a. To produced female gamete
b. To provide the site for fertilisation.
c. To provide the site for implantation.
d. To produce several steroid hormones.
(a) a and b
(b) a, b and d
(c) a, b and c
(d) a and d
Question. Match the columns I and II and choose the CORRECT combination from the option given.
|Column I||Column II|
|a. Testis||i. Erectile|
|b. Infundibulum||ii. Oval|
|c. Uterus||iii. Finger-like|
|d. Fimbriae||iv. Funnel-shaped|
|e. Clitoris||v. Inverted pear like|
(a) a (ii), b (v), c (i), d (iii), e (iv)
(b) a (i), b (iv), c (v), d (ii), e (iii)
(c) a (ii), b (iv), c (v), d (iii), e (i)
(d) a (i), b(iv), c (v), d (iii), e (ii)
Question. Mammary gland of a woman is :-
(a) a modified sweat gland
(b) a primary sex organ
(c) an exocrine gland
(d) Both 1 and 3
Question. The family planning programming in India were initiated in:
Question. Read the following statements and state how many of the given statements are correct?
P. During intra uterine life female possess a couple of million gamete mother cells .
Q. Spermatogenesis starts at puberty.
R. In semen, at least 40% sperms should have a normal shape for fertility.
Question. Select the correct statements.
(a) Pelvic infilamentory diseases doesn’t occur in STDs
(b) MTP was legalised in india in 1951.
(c) Saheli is a weekly non-steroidal oral contraceptive pill.
(d) Genital herpes is curable
Question. Oral contraceptive pills help in birth control by-
(a) Killing the sperms in uterus
(b) Preventing ovulation
(c) Forming barrier between sperm and ova
(d) Killing the ovum
Question. Family planning was initiated in —–(A)—- to attain——(B)—– as a social goal.
(a) A: 1951, B: Total reproductive health
(b) A: 1961, B: Total reproductive health
(c) A: 1971, B: Total mental health
(d) A: 1951, B: Total mental health
Question. The main cause of the disintegration of the endometrial lining is-
(a) LH surge
(b) Degeneration of corpus luteum
(c) Ovulation during mid-cycle.
(d) Implantation leads to pregnancy
Question. Which one of the following is not a male accessory gland?
(a) Seminal vesicle
(d) Bulbourethral gland
Question. Which hormone of pituitary gland regulates Sertoli cells?
Question. Two types of cells present in the lining of seminiferous tubules are _______ and _______.
(a) leydig cells, sertoli cells.
(b) male germ cells, sertoli cells.
(c) spermatogonium, spermatids.
(d) primary oocyte, leydig cells.
Question. Seminal plasma in humans is rich in
(a) fructose and calcium
(b) glucose and calcium
(c) Progesterone and testosterone
(d) potassium and calcium
Question. When semen is released by the penis into the vagina during copulation, then it is called _____.
Question. The signals of parturition originate from
(b) fully developed foetus
(c) oxytocin released from pituitary
(d) both placenta and fully developed foetus
Question. The Leydig cells are a source of
Question. The function of corpus luteum is to produce
Question. Choose the incorrect statement from the following.
(a) In birds and mammals internal fertilisation takes place.
(b) Colostrum contains antibodies and nutrients.
(c) Polyspermy in mammals is prevented by the chemical changes in the egg surface.
(d) In the human female implantation occurs almost seven days after fertilisation.
Question. Which of the following is true regarding the male reproductive system?
(a) Sperms are diploid.
(b) It includes testes, accessory ducts and glands, and oviducts.
(c) The scrotum keeps the testes warmer, thus helping it to promote the sperm formation.
(d) Sertoli cells are found in seminiferous tubules and provide nutrition to germ cells.
Question. Spot the odd one out from the following structures with reference to the male reproductive system.
(a) Rete testis
(c) Vasa efferentia
Question. Seminal plasma, the fluid part of semen, is contributed by.
(i) Seminal vesicle (ii) Prostate gland
(iii) Urethra (iv) Bulbourethral gland
(a) (i) and (ii)
(b) (i), (ii) and (iv)
(c) (ii), (iii) and (iv)
(d) (i) and (iv)
Question. Secretion of milk from the mammary gland towards the end of the pregnancy is called_____.
Question. Which of the following statements is incorrect?
(a) GnRH stimulates secretion of FSH and LH
(b) LH stimulates the Leydig cells to secrete androgen
(c) FSH acts on the Sertoli cells and stimulates spermiogenesis
(d) None of these
Question. Blastomeres are daughter cells formed in the process of
(a) cleavage, when zygote undergoes mitotic division.
(b) fertilization, when sperm enters in the cytoplasm of ovum.
(c) implantation, when blastocysts attached to the uterine endometrium.
(d) gametogenesis, when male and female gametes are produced by testis and ovary respectively
Question. Spermiation is the process of the release of sperms from.
(a) Seminiferous tubules
(b) Vas deferens
(d) Prostate gland
Question. The correct sequence of stages in spermatogenesis are:
(a) spermatogonia → spermatid → spermatocyte → sperm
(b) spermatocyte → spermatogonia → spermatid → sperm
(c) spermatogonia → spermatocyte → spermatid → sperm
(d) spermatid → spermatocyte → spermatogonia → sperm
Question. Match the following and choose the correct options
Column I Column II
(A) Trophoblast (i) Embedding of blastocyst in the endome trium
(B) Cleavage (ii) Group of cells that would differentiate as embryo
(C) Inner cell mass (iii) Outer layer of blastocyst attached to the endometrium
(D) Implantation (iv) Mitotic division of zygote
(a) A-(ii), B-(i), C-(iii), D-(iv)
(b) A-(iii), B-(iv), C-(ii), D-(i)
(c) A-(iii), B-(i), C-(ii), D-(iv)
(d) A-(ii), B-(iv), C-(iii), D-(i)
Question. Mature Graafian follicle is generally present in the ovary of a healthy human female around.
(a) 5 – 8 day of menstrual cycle
(b) 11 – 17 day of menstrual cycle
(c) 18 – 23 day of menstrual cycle
(d) 24 – 28 day of menstrual cycle
Question. The immature male germs cell undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.
(a) Spermatogonia have 46 chromosomes and always undergo meiotic cell division
(b) Primary spermatocytes divide by mitotic cell division
(c) Secondary spermatocytes have 23 chromosomes and undergo second meiotic division
(d) Spermatozoa are transformed into spermatids
Question. Number of chromosomes in polar body of human is
Question. Which among the following has 23 chromosomes?
(c) Secondary oocyte
Question. Which of the following process induces the completion of the meiotic division of secondary oocyte?
Question. Which of the following hormones is not secreted by human placenta?
Question. The vas deferens receives duct from the seminal vesicle and opens into urethra as
(b) ejaculatory duct
(c) efferent ductule
Question. Which of the following hormones is produced in women only during pregnancy?
Question. Identify the correct statement from the following.
(a) High levels of estrogen triggers the ovulatory surge.
(b) Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards.
(c) Sperms released from seminiferous tubules are highly motile/non-motile.
(d) Progesterone level is high during the post ovulatory phase of menstrual cycle.
Question. 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
Question. Menstruation is triggered by a sudden decline in the amount of hormone secreted by corpus luteum. Identify the hormone.
(a) Luteinizing hormone
(b) Follicle stimulating hormone
Question. Identify the odd one from the following.
(a) Labia minora
Question. Match between the following representing parts of the sperm and their functions and choose the correct option.
Column I Column II
(A) Head (i) Enzymes
(B) Middle piece (ii) Sperm motility
(C) Acrosome (iii) Energy
(D) Tail (iv) Genetic material
(a) A-(ii), B-(iv), C-(i), D-(iii)
(b) A-(iv), B-(iii), C-(i), D-(ii)
(c) A-(iv), B-(i), C-(ii), D-(iii)
(d) A-(ii), B-(i), C-(iii), D-(iv)
Question. Which of the following is a transporting tube leading from the bladder to which brings urine outside the body via penis?
(c) Ejaculatory duct
(d) Urethra meatus
Question. Acrosomal reaction of the sperm occurs due to
(a) its contact with zona pellucida of the ova
(b) reactions within the uterine environment of the female
(c) reactions within the epididymal environment of the male
(d) androgens produced in the uterus
Question. Vasa efferentia are the ductules leading from
(a) epididymis to urethra.
(b) vas deferens to epididymis.
(c) rete testis to vas deferens.
(d) testicular lobules to rete testis.
Question. A sac shaped like an upside down pear with a thick lining and muscles in the pelvic area where a fertilized egg or zygote comes to grow into a baby is called _______.
Question. In humans, male germs cells differentiate into _____ at the end of first meiotic division.
(c) secondary spermatocyte
(d) primary spermatocyte
Question. Increased secretion of which hormone start the process of sperm formation at the time of puberty?
Question. After birth, colostrum is released from mammary glands which is rich in
(a) fat and low in proteins
(b) proteins and low in fat
(c) proteins, antibodies and low in fat
(d) proteins, fat and low in antibodies
Question. By which process sperms released from the seminiferous tubules?
Question. Which of the following contains a fluid filled cavity called antrum?
(a) Primary spermatocyte.
(b) Primary follicle of ovary.
(c) Tertiary follicle of ovary.
(d) Secondary spermatocyte.
Question. Which of the following indicates pregnancy?
(a) Lack of menstruation.
(b) Occurrence of menstrual flow.
(c) When released ovum is not fertilized.
(d) When Graafian follicle matures and endometrium regenerates through proliferation.
Question. Which layer of blastocysts gets attached to the endometrium?
(b) Inner cell mass
(c) Umbilical cord
(d) Both (a) and (c)
Question. The membranous cover of the ovum at ovulation is
(a) corona radiata
(b) zona radiata
(c) zona pellucida
Question. Finger like projection, called chorionic villi, appear on the _________ after the implantation.
(d) inner cell mass
Question. 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
Question. In human female, menopause is a stage in which
(a) oogenesis starts at puberty.
(b) menstruation starts at puberty.
(c) corpus luteum starts secreting progesterone for maintaining pregnancy.
(d) menstruation stops at the age of 50 years and reproductive capacity is arrested.
We hope the above multiple choice questions for Class 12 Biology for Chapter 3 Human Reproduction provided above with answers based on the latest syllabus and examination guidelines issued by CBSE, NCERT and KVS are really useful for you. Human Reproduction is an important chapter in Class 12 as it provides very strong understanding about this topic. Students should go through the answers provided for the MCQs after they have themselves solved the questions. All MCQs have been provided with four options for the students to solve. These questions are really useful for benefit of class 12 students. Please go through these and let us know if you have any feedback in the comments section.