Refer to CBSE Class 12 Biology Human Reproduction MCQs provided below. CBSE Class 12 Biology MCQs with answers available in Pdf for free download. The MCQ Questions for Class 12 Biology with answers have been prepared as per the latest syllabus, CBSE books and examination pattern suggested in Class 12 by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 3 Human Reproduction are an important part of exams for Class 12 Biology and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 12 Biology and also download more latest study material for all subjects
MCQ for Class 12 Biology Chapter 3 Human Reproduction
Class 12 Biology students should refer to the following multiple-choice questions with answers for Chapter 3 Human Reproduction in Class 12. These MCQ questions with answers for Class 12 Biology will come in exams and help you to score good marks
Chapter 3 Human Reproduction MCQ Questions Class 12 Biology with Answers
Question: The __________ lead to vas deferens that ascends to the ______ and loops over the __________.
a) prostate, stomach, urinary bladder.
b) epididymis, abdomen, urinary bladder.
c) vas efferentia, abdomen, ureter.
d) urinary bladder, ejaculatory duct, abdomen.
Answer : B
Question: The enlarged end of penis is covered by a loose fold of skin is called.
a) glans penis
b) foreskin
c) hymen
d) urethral meatus
Answer : B
Question: Which of the following is a transporting tube leading from the bladder to which brings urine outside the body via penis?
a) Ureter
b) Epididymis
c) Ejaculatory duct
d) Urethra meatus
Answer : D
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..
Answer : C
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 _______.
a) oviduct
b) uterus
c) vagina
d) vulva
Answer : B
Question: Which of the following is a finger like structure and lies at the upper junction of the two labia minora above the urethral opening?
a) Clitoris
b) Oviduct
c) Ampulla
d) Chorionic villi
Answer : A
Question: Which of the following produces sperms in spermatogenesis?
a) Sertoli cells.
b) Interstitial cells.
c) Primary spermatocytes.
d) Immature male germ cells.
Answer : D
Question: In the process of spermatogenesis, first maturation division is called _______.
a) mitotic division
b) reduction division
c) amitotic division
d) None of the these
Answer : B
Question: Spermatids are transformed into sperm by a process called_______.
a) spermiation
b) implantation
c) insemination
d) spermiogenesis
Answer : D
Question: In humans, male germs cells differentiate into _____ at the end of first meiotic division.
a) spermatid
b) spermatogonium
c) secondary spermatocyte
d) primary spermatocyte
Answer : C
Question: The vas deferens receives duct from the seminal vesicle and opens into urethra as:
a) Ejaculatory duct
b) Efferent ductule
c) Ureter
d) Epididymis
Answer: A
Question: Urethral meatus refers to the:
a) External opening of the urinogenital duct
b) Muscles surrounding the urinogenial duct
c) Opening of vas deferens into urethra
d) Urinogenital duct
Answer: A
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
Answer: A
Question: Corpus luteum develops under the influence of
a) LH
b) FSH
c) Estrogen
d) All of these
Answer: A
Question: Corpus luteum produces
a) Progesterone
b) Testosterone
c) Estrogen
d) All of these
Answer: A
Question: The membranous cover of the ovum at ovulation is
a) Corona radiata
b) Zona radiata
c) Zona pellucida
d) Chorion
Answer: A
Question: Identify the odd one from the following
a) Labia minora
b) Fimbriae
c) Infundibulum
d) Isthmus
Answer: A
Question: Correct sequence in development is
a) Fertilization – Zygote – cleavage – Morula – Blastula - Gastrula
b) Fertilization – Zygote – Blastula – Morula – Cleavage - Gastrula
c) Fertilization – Cleavage – Morula – Zygote – Blastula – Gastrula
d) None of these
Answer: A
Question: Correct sequence of hormone secretion from beginning of menstruation is
a) FSH, estrogen progesterone
b) Estrogen, progesterone, FSH
c) FSH, progesterone, estrogen
d) All of these
Answer: A
Question: Immediately after ovulation, the mammalian egg is covered by a membrane known as
a) Zona pellucida
b) Corona radiata
c) Chorion
d) All of these
Answer: A
Question: _______ is a lytic enzyme released by the sperm.
a) Hyaluronidase
b) Helicase
c) Trypsin
d) None of the these
Answer: A
Question: How many autosomes does a human primary spermatocyte have?
a) 44
b) 34
c) 24
d) 14
Answer: A
Question: Where does the ovum receive the sperm?
a) Vegetal pole
b) Zona pellucid
c) Zona pellucid
d) None of these
Answer: A
Question: How does human sperm locomote?
a) Flagella
b) Cilia
c) Neutrophils
d) None of these
Answer: A
Question: Cryptorchidism is a condition where
a) One or both testes fail to descend into the scrotum
b) One of both testes are not developed
c) One of both testes are not developed
d) None of these
Answer: A
Answer: A
b) endoderm
d) Both b) and c)
Answer: C
b) 8
d) 1
b) Ciliated
d) Squamous
b) corpus callosum
d) corpus atresia
b) LH
d) testosterone
b) LH
d) Progesterone
b) GH
d) LH
b) FSH
d) Progesterone
Question: Increased secretion of which hormone start the process of sperm formation at the time of puberty?
a) GH
b) TSH
c) PRL
d) GnRH
Answer : D
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
Answer : C
Question: Which of the following hormone maintains the function of male sex accessory gland and ducts?
a) Estrogen
b) Androgen
c) Progesterone
d) Luteinizing hormone
Answer : B
Question: Semen is a constituent of seminal plasma with _______.
a) ovum
b) sperm
c) zygote
d) follicle
Answer : B
Question: Ejaculation of human male contains about 200 – 300 million sperms, of which for normal fertility ____ % sperms must have normal shape and size and at least ____% must show energetic motility.
a) 40, 60
b) 50, 50
c) 60, 40
d) 30, 70
Answer : C
Question: Which of the following stage of oogenesis forms a membrane called zona pellucida surrounding it?
a) Oogonia
b) Polar body
c) Corpus luteum
d) Secondary oocytes
Answer : D
Question: By which process sperms released from the seminiferous tubules?
a) Spermiation
b) Insemination
c) Spermatogenesis
d) Spermiogenesis
Answer : A
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.
Answer : C
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
c) Progesterone
d) Estrogen
Answer : C
Question: Level of which hormones are at their highest during the luteal phase (second half of the cycle) of the menstrual cycle?
a) Estrogen
b) Progesterone
c) Luteinizing hormone
d) Follicular stimulating hormone
Answer : B
Question: Which one of the following is not a male accessory gland?
a) Ampulla
b) Prostate
c) Bulbourethral gland
d) None of these
Answer: A
Question: The immature male germ cell undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.
a) Secondary spermatocytes have 23 chromosomes and undergo second meiotic division
b) Spermatozoa are transformed into spermatids
c) Primary spermatocytes divide by mitotic cell division
d) Spermatogonia have 46 chromosomes and always undergo meiotic cell division
Answer: A
Question: Match between the following representing parts of the sperm and their functions and choose the correct option
- a) A-iv, B-iii, C-i, D-ii
- b) A-iv, B-i, C-ii, D-iii
- c) A-ii, B-i, C-iii, D-iv
- d) A-ii, B-iv, C-i, D-iii
Answer:A
Question: There is no cell division involved in
a) spermiogenesis
b) embryogenesis
c) oogenesis
d) All of these
Answer: A
Question: It The cell division in secondary oocyte is suspended at
a) Metaphase II
b) Prophase II
c) Prophase II
d) None of these
Answer: A
Question: Connective tissue around seminiferous tubules possess endocrine cells called
a) Leydig cells
b) Sertoli cells
c) Primary germ cells
d) None of these
Answer: A
Question: Conversion of spermatids into sperms is
a) Spermiogenesis
b) Ppermatogenesis
c) Gametogenesis
d) Metamorphosis
Answer: A
Question: Corona radia is made up of
a) follicular cells around the oocyte
b) stratum functionalis
c) zona pellucid around the oocyte
d) All of these
Answer: A
Question: Which among the following has 23 chromosomes?
a) Secondary oöcyte
b) Oögonia
c) Zygote
d) Spermatogonia
Answer: A
Question:
a) A-iii, B-iv, C-ii, D-i
b) A-iii, B-i, C-ii, D-iv
c) A-ii, B-iv, C-iii, D-i
d) A-ii, B-i, C-iii, D-iv
Answer: A
Question: Corpus leteum develops from
a) Graafian follicle
b) none of the these
c) Nephrostome
d) Oocyte
Answer: A
Question: Corpus luteum
a) Later forms corpus albicans
b) None of these
c) Decreases in size during pregnancy
d) Degenerates during pregnancy
Answer: A
Question: Which of the following hormones is not secreted by human placenta?
a) LH
b) Progesterone
c) Estrogens
d) hCG
Answer: A
Question: The cell which undergoes meiosis I during spermatogenesis, is the
a) primary spermatocyte
b) secondary spermatocyte
c) spermatid
d) spermatogonium
Answer: A
Question: Seminal plasma, the fluid part of semen is formed by
a) seminal vesicles, prostate and bulbourethral gland.
b) prostate and seminal vesicle
c) Both
d) None of these
Answer: A
Question: Choose the incorrect statement from the following:
a) Polyspermy is prevented by the chemical changes in the egg surface
b) In the human female implantation occurs almost seven days after fertilisation
c) Colostrum contains antibodies and nutrients
d) In birds and mammals internal fertilisation takes place
Answer: PA
Question: Identify the wrong statement from the following
a) Orgonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards
b) High levels of estrogen triggers the ovulatory surge.
c) Sperms released from seminiferous tubules are poorly motile / non-motile.
d) Progesterone level is high during the post ovulatory phase of menstrual cycle
Answer: A
Question: Spot the odd one out from the following structures with reference to the male reproductive system
a) Isthmus
b) Vasa efferentia
c) Ret testis
d) Epididymis
Answer: A
Question: Seminal plasma, the fluid part of semen, is contributed by.
i. Seminal vesicle
ii. Prostate
iii. Urethra
iv. Bulbourethral gland
a) i, ii and iv
b) ii, iii and iv
c) i and iv
d) i and ii
Answer: A
Question: Spermiation is the process of the release of sperms from
a) Seminiferous tubules
b) Vas deferens
c) Epididymis
d) Prostate gland
Answer: A
Question: Vas deferens receives the duct of seminal vesicle and forms the
a) ejaculatory duct
b) urethral meatus
c) urethra
d) epididymis
Answer: A
Question: How many functional sperms and how many ova will be formed by a primary spermatocyte and a primary oocyte
a) Four, One
b) Four, Four
c) One, One
d) None of these
Answer: A
Question: Cavity of graafian follicle is
a) Antrum
b) Liquor folliculi
c) Discus proligerous
d) All of these
Answer: A
Question: Cells of corona radiata remain grouped together by
a) Hyaluronic acid
b) Hyaluronidase
c) Lipids
d) Pectins
Answer: A
Question: Ovulation occurs under the influence of
a) Ovulation occurs under the influence of
b) follicle-stimulating hormone
c) progesterone
d) None of these
Answer: A
Question: Proliferative phase of menstrual cycle, is also called
a) luteal phase
b) luteal phase
c) luteal phase
d) All of these
Answer: A
Question: ells of Leydig occur in
a) Testis
b) Ovary
c) Liver
d) Spleen
Answer: A
Question: Mature Graafian follicle is generally present in the ovary of a healthy human female around stet:
a) 11 – 17 day of menstrual cycle
b) 18 – 23 day of menstrual cycle
c) 24 – 28 day of menstrual cycle
d) 5 – 8 day of menstrual cycle
Answer: A
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
Answer: A
Question: Cleavage starts after fertilization in
a) Fallopian tube
b) Uterus
c) Vestibule
d) Clitoris
Answer: A
Answer: A
Answer: A
Answer: B
Answer: B
Answer: B
Answer: A
Answer: A
Answer: A
Answer: B
Answer: C
b) trophoblast
d) follicle cells
Answer: C
Answer: C
b) regulator
d) exon
Answer: C
Answer: C
Answer: D
Answer: A
Answer: B
Answer: C
Answer: D
Answer: B
Answer: A
Answer: D
Answer: B
Answer: A
Answer: C
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