Here you will find NEET MCQ questions on the Class 12 Biology Chapter “Human Reproduction” based on the NCERT textbook. Solve the below free NEET mock test for a better understanding of the various topics. 100+ important MCQs (multiple choice questions) are given in this NEET question bank.
“Human Reproduction” is the third chapter in the unit “Reproduction” of class XII or class 12th Biology NCERT. Do note that NEET (which is conducted by NTA) is based on NCERT books so they are a must have. You can also download the PDF of NCERT textbooks.
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Important Questions For NEET:
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- Which of the following characters is seen in females?
(a) Muscles are strong
(b) Mammary gland is well developed
(c) Voice is heavy
(d) Facial hair
(b) Mammary gland is well developed
- Which of the following characters is seen in males?
(a) Muscles are comparatively weak
(b) Voice is shrill
(c) Voice is heavy
(d) Beard and mustache is not seen
(c) Voice is heavy
- Where testes are situated?
(a) Abdominal cavity
(b) Dorsal side of the abdominal cavity
(c) (a) and (b) both
(d) Scrotal sac
(d) Scrotal sac
- Which hormone is released from testes?
(a) Testosterone
(b) Estrogen
(c) Progesterone
(d) Relaxin
(a) Testosterone
- Which hormone is released from ovaries?
(a) Testosterone
(b) Estrogen
(c) Progesterone
(d) (b) and (c) both
(d) (b) and (c) both
- Which of the following glands is seen in the male reproductive system?
(a) Seminal vesicle
(b) Prostate gland
(c) Bulbourethral gland
(d) All of these
(d) All of these
- How much lower is the temperature of the scrotal sac than the body temperature?
(a) 3 degree celsius
(b) 4-degree celsius
(c) 5-degree celsius
(d) 6-degree celsius
(a) 3 degree celsius
- What is the size of the testis?
(a) 6 cm length and 2.5 cm diameter
(b) 5 cm length and 2.5 cm diameter
(c) 5 cm length and 3.5 cm diameter
(d) 6 cm length and 3.5 cm diameter
(b) 5 cm length and 2.5 cm diameter
- Which connective tissue surrounds the testis?
(a) Fibrous tissue
(b) Spongy connective tissue
(c) Tunica albuginea
(d) None of them
(c) Tunica albuginea
- Seminiferous tubules in the testis are lined with which type of cells?
(a) Germinal cells
(b) only germinal cells
(c) Sertoli cell
(d) Both a and c
(d) Both a and c
- In testis, which cells produce sperms?
(a) Germinal cells
(b) Epithelial cell
(c) Sertoli cell
(d) Both a and c
(a) Germinal cells
- Which cells provide nutrition to the sperms?
(a) Germinal cells
(b) Epithelial cell
(c) Sertoli cell
(d) None of them
- In tests, which cells are present in the interstitial space between seminiferous tubules?
(a) Sertoli cells
(b) Germinal cells
(c) Leydigs cells
(d) (a)and(b)both
(c) Leydigs cells
- Which cells secrete testosterone?
(a) Sertoli cells
(b) Germinal cells
(c) Interstitial cells
(d) (a)and(b)both
(c) Interstitial cells
- Where do the seminiferous tubules of each lobe empty their sperms?
(a) Vas deferens
(b) Vasa efferentia
(c) Epididymis
(d) Seminal vesicles
(b) Vasa efferentia
- What is the location of the epididymis?
(a) External surface of the testis
(b) Above the testis
(c) Below the testis
(d) Internal surface of the testis
(a) External surface of the testis
- What is the length of the epididymis?
(a) 6 c.m
(b) 6 feet
(c) 6 meter
(d) 6 inch
(c) 6 meter
- Function of the epididymis is
(a) A temporary storage site
(b) For the immature sperms to complete their maturation process
(c) Gain the ability of swimming (motility)
(d) All of these
(d) All of these
- When are sperms transported from the epididymis to the vas deferens?
(a) Male is not sexually stimulated
(b) Male is sexually stimulated
(c) The walls of the epididymis contract
(d) First b and after c process occurs
(d) First b and after c process occurs
- What is the length of the vas deferens?
(a) 45 inch
(b) 45 mm
(c) 45 cm
(d) 4.5 meter
(c) 45 cm
- Through which of the following vas deferens runs upward from the epididymis and enters the abdominal cavity?
(a) Ejaculatory duct
(b) Inguinal canal
(c) Urethra
(d) (a)and(b)both
(b) Inguinal canal
- The distal end of vas deferens is expanded and in this region the opens?
(a) Prostate gland
(b) Bulbourethral gland
(c) Seminal vesicle
(d) Ejaculatory duct
(c) Seminal vesicle
- What is the region present between the part of the seminal vesicle and duct of the urinary bladder called?
(a) Ejaculatory duct
(b) Duct of urinary
(c) Urethra
(d) Seminal vesicle duct
(a) Ejaculatory duct
- Duct of which gland joins with urethra before it passes through penis?
(a) Prostate gland
(b) Bulbourethral gland
(c) Seminal vesicle gland
(d) (a) and (b) both
(b) Bulbourethral gland
- In male accessory reproductive glands which is incorrect?
(a) Seminal vesicle
(b) Prostate gland
(c) Urinary bladder
(d) Bulbourethral gland
(c) Urinary bladder
- The seminal vesicles are located at?
(a) Over urinary bladder
(b) Base of the urinary bladder
(c) Near urinary bladder
(d) Besides urinary bladder
(b) Base of the urinary bladder
- What percentage of semen is produced by seminal vesicles?
(a) 50%
(b) 55%
(c) 60%
(d) 65%
(c) 60%
- Which substances present in seminal vesicles are thick and yellowish secretion?
(a) Sugar
(b) Vitamin c
(c) Fat
(d) (a) and (b) both
(d) (a) and (b) both
- What is provided to sperms by secretion of seminal vesicles?
(a) Nourishment
(b) Activating
(c) Lubricant
(d) (a) and(c) both
(a) Nourishment
- Where is the prostate gland located?
(a) Over urinary bladder
(b) Base of the urinary bladder
(c) Posterior region of the urinary
(d) Side of the urinary bladder
(c) Posterior region of the urinary
- What is provided to sperm by secretion of the prostate gland?
(a) Nourishes
(b) Activating
(c) Lubricant
(d) (a)and (c) both
(b) Activating
- Where is the bulbourethral gland located?
(a) Beneath the prostate
(b) Lateral side of the urethra
(c) Over urinary bladder
(d) (a) and (b) both
(d) (a) and (b) both
- Which gland secretes alkaline fluid?
(a) Seminal vesicle gland
(b) Prostate gland
(c) Bulbourethral gland
(d) (b) and (c) both
(d) (b) and (c) both
- What is the function of bulbourethral gland secretion?
(a) Nourishes sperms
(b) role in activating sperms
(c) Serves as a lubricant during sexual intercourse
(d) Enhancing the motility of sperms
(c) Serves as a lubricant during sexual intercourse
- Which of the following constitute semen?
(a) Sperms
(b) Secretion of accessory glands
(c) Organic substance
(d) Both a and b
(d) Both a and b
- What is the pH of semen?
(a) 7.3 to 7.7
(b) 7.2 to 7.6
(c) 7.4 to 7.8
(d) 7.5 to 7.9
(b) 7.2 to 7.6
- What is the pH of vaginal fluid?
(a) 3.5 to 4.0
(b) 3.6 to 4.1
(c) 3.7 to 4.2
(d) 3.8 to 4.3
(a) 3.5 to 4.0
- The average volume of semen for each ejaculation is
(a) 3 to 4 ml
(b) 3.5 to 4.5 ml
(c) 4 to 5 ml
(d) 4.5 to 5.5 ml
(a) 3 to 4 ml
- Which cylindrical organ is located at the frontal region of scrotal sacs?
(a) Epididymis
(b) Vas deferens
(c) Penis
(d) (a) and (b) both
(c) Penis
- Internally the penis is
(a) Composed of three cylindrical mass of connective tissue bound together
(b) Composed of three cylindrical mass of tissue bound together by fibrous tissue
(c) Composed of three cylindrical mass of epithelium tissue bound together
(d) Composed of three mass of tissue only
(b) Composed of three cylindrical mass of tissue bound together by fibrous tissue
- When does the penis get erect?
(a) If masses of tissue filled with air
(b) If masses of tissue filled with blood
(c) If masses of tissue filled with hormones
(d) (b) and (c) occurs both
(b) If masses of tissue filled with blood
- Which is an accessory part of the female reproductive system?
(a) Vulva
(b) Pudendum
(c) Mammary gland
(d) Vagina
(c) Mammary gland
- What is the size of ovaries?
(a) 3 c.m long, 2 c.m wide, 1 c.m thick
(b) 2 c.m long, 2 c.m wide, 1 c.m thick
(c) 3 c.m long, 2 c.m wide, 2 c.m thick
(d) 2 c.m long, 2 c.m wide, 2 c.m thick
(a) 3 c.m long, 2 c.m wide, 1 c.m thick
- Where are ovaries situated?
(a) In the upper pelvic cavity
(b) Below pelvic cavity
(c) At one on each side of the uterus
(d) (a) and (c) both
(d) (a) and (c) both
- The ovaries maintain their position by
(a) Series of ligaments
(b) Connective layer
(c) Epithelium layer
(d) Muscular filament
(a) Series of ligaments
- What is the entry point for blood vessels and nerves into the ovaries called?
(a) Cortex
(b) Hilus
(c) Medulla
(d) None of them
(b) Hilus
- Which tissue layer covers the ovary?
(a) Columnar epithelium
(b) Squamous epithelium
(c) Cuboidal epithelium
(d) Ciliary epithelium
(c) Cuboidal epithelium
- What is the surrounding layer of the ovary called?
(a) Germinal epithelium
(b) Tunica albuginea
(c) Stroma
(d) Collagenous
(a) Germinal epithelium
- What is called a capsule of collagenous connective tissue immediately after the germinal epithelium of ovaries?
(a) Stroma
(b) Tunica albuginea
(c) Ovarian epithelium
(d)None of them
(b) Tunica albuginea
- Which tissue layer of tunica albuginea
(a) Connective tissue
(b) Collagenous connective tissue
(c) Epithelial tissue
(d) Collagenous epithelium tissue
(b) Collagenous connective tissue
- What is called a region of connective tissue deep to the tunica albuginea?
(a) Stroma
(b) Follicular epithelium
(c) Graffian follicles
(d) Corpus luteum
(a) Stroma
- Ovarian stroma is composed by?
(a) Cortex
(b) Medulla
(c) Follicles
(d) (a) and (b) both
(d) (a) and (b) both
- Stroma of ovarian cortex contains
(a) Ovarian follicles
(b) Corpus luteum
(c) Graffian follicles
(d) (a) and (c) both
(a) Ovarian follicles
- What is the structure consisting of ova and their surrounding tissues in various stages of development called?
(a) Primary follicle
(b) Ovarian follicles
(c) Graffian follicles
(d) Corpus luteum
(b) Ovarian follicles
- What is the structure consisting of the mature ovum and its surrounding tissues called?
(a) Mature ovum
(b) Ovarian follicles
(c) Graffian follicle
(d) Corpus luteum
(c) Graffian follicle
- Graffian follicle after ovulation produces a glandular body, it is called
(a) Graffian follicle
(b) Corpus luteum
(c) Mass of Graafian follicle
(d) both a and b
(b) Corpus luteum
- Which hormones are produced by the corpus luteum?
(a) Estrogen
(b) Progesterone
(c) Testosterone
(d) (a) and (b) both
(b) Progesterone
- What is the length of the fallopian tube?
(a) 10 c.m
(b) 10 m.m
(c) 12 c.m
(d) 12 m.m
(a) 10 c.m
- The uterine tube from the side runs forwards and becomes associated with
(a) Vagina
(b) Uterus
(c) Urethra
(d) Ovary
(b) Uterus
- Where does ovum fertilization occur?
(a) Vagina
(b) Uterus
(c) Fallopian tube
(d) Infundibulum
(c) Fallopian tube
- Where is the uterus situated?
(a) Between the urinary bladder and rectum
(b) Between the urinary bladder and urethra
(c) Between the urinary bladder and ovary
(d) Between the urinary bladder and intestine
(a) Between the urinary bladder and rectum
- What is the shape of the uterus?
(a) Inverted apple-shaped
(b) Inverted pear-shaped
(c) Inverted mango shaped
(d) None of this
(b) Inverted pear-shaped
- The wall of the uterus is made of how many layers
(a) Three
(b) Two
(c) one
(d) Four
(a) Three
- A fertilized egg is implanted where in the uterus?
(a) Endometrium
(b) Myometrium
(c) Perimetrium
(d) None of this
(a) Endometrium
- It is a bulky middle layer of the uterus and it plays an active role during the delivery of a baby
(a) Endometrium
(b) Myometrium
(c) Perimetrium
(d) None of this
(b) Myometrium
- The distal narrow end of the uterus is called
(a) Vagina
(b) Cervix
(c) Hymen
(d) (a) and (c) both
(b) Cervix
- Which part is connected to the uterus through the cervix?
(a) Vagina
(b) Hymen
(c) Mucosal membrane
(d) (a) and (c) both
(a) Vagina
- It is a fold at the distal end of the vagina
(a) Hymen
(b) Mucosal membrane
(c) Cervix
(d) Clitoris
(b) Mucosal membrane
- What is called cushion of fatty tissue in female external genitalia?
(a) Mons pubis
(b) Labia majora
(c) Labia minora
(d) Clitoris
(a) Mons pubis
- Which region of the vulva is located below the mons pubis?
(a) Labia majora
(b) Labia minora
(c) Clitoris
(d) None of this
(a) Labia majora
- What is called a tiny finger-like structure which lies at the upper junction of the two labia minora
(a) Penis
(b) Clitoris
(c) Mons
(d) Pubis
(b) Clitoris
- Which is part of the vulva is considered equivalent to the male penis
(a) Clitoris
(b) Hymen
(c) Mons
(d) Pubis
(a) Clitoris
- During the puberty stage, which sex hormone stimulates the enlargement of the breast?
(a) Progesterone
(b) Estrogen
(c) Testosterone
(d) (a) and (b) both
(b) Estrogen
- What is called the process of gamete formation in sexually reproducing animals?
(a) Spermatogenesis
(b) oogenesis
(c) Gametogenesis
(d) None of this
(c) Gametogenesis
- Which cells produce spermatids
(a) Secondary germinal cells
(b) Primary germinal cells
(c) Spermatogonium
(d) Spermatocytes
(b) Primary germinal cells
- Name the process involved in the multiplication phase of spermatogenesis?
(a) Mitotic
(b) Meiosis
(c) Amitosis
(d) (a) and (b) both
(a) Mitotic
- In spermatogenesis, which cells are produced at the end of the multiplication phase?
(a) Primary spermatocyte
(b) Spermatogonia
(c) Secondary spermatocyte
(d) Spermatids
(b) Spermatogonia
- In spermatogenesis, which cells are produced at the end of the growth phase?
(a) Primary spermatocyte
(b) Spermatogonia
(c) Secondary spermatocyte
(d) Spermatids
(a) Primary spermatocyte
- In spermatogenesis, which processes occur for secondary spermatocytes?
(a) Mitotic
(b) Meiosis
(c) Amitosis
(d) (a) and (b) both
(b) Meiosis
- In spermatogenesis, which cells are produced at the end of the maturation phase?
(a) Primary spermatocyte
(b) Spermatogonia
(c) Secondary spermatocyte
(d) Spermatids
(d) Spermatids
- The metamorphosis of the spermatids into the sperms is known as
(a) Multiplication phase
(b) The growth phase
(c) The maturation phase
(d) Spermiogenesis
(d) Spermiogenesis
- Which enzyme is produced by acrosome?
(a) Testosterone
(b) Hyaluronidase
(c) FSH
(d) LH
(b) Hyaluronidase
- The acrosome is formed by the
(a) Mitochondria
(b) Golgi Complex
(c) Ribosomes
(d) Nucleus
(b) Golgi Complex
- These form a middle piece of the sperm
(a) Mitochondria
(b) Golgi Complex
(c) Ribosomes
(d) Nucleus
(a) Mitochondria
- In oogenesis, which cells are produced at the end of the multiplication phase?
(a) Primary oocyte
(b) Secondary oocyte
(c) First polar body
(d) Secondary polar body
(a) Primary oocyte
- In oogenesis which substance are present in the primary oocyte of the growth phase?
(a) Fat and proteins
(b) DNA, RNA
(c) ATP and enzyme
(d) Above all
(d) Above all
- In oogenesis, which cell bodies are concentrated in the cytoplasm of the primary oocyte of the growth phase?
(a) Mitochondrial
(b) Golgi Complex
(c) Ribosomes
(d) Above all
(d) Above all
- In oogenesis, which cells are produced at the first division of primary oocytes in the maturation phase?
(a) Secondary oocyte
(b) First polar body
(c) Secondary polar body
(d) (a) and (b) both
(d) (a) and (b) both
- A cell at ovulation is at which stage
(a) Secondary oocyte
(b) First polar body
(c) Secondary polar body
(d) Primary oocyte
(a) Secondary oocyte
- When sperm penetrates the secondary oocyte during its unequal meiotic division, how many polar body (bodies) is/are produced?
(a) One
(b) Two
(c) Three
(d) None of this
(c) Three
- The events of the menstrual cycle are the cyclic changes in the
(a) Endometrium
(b) Myometrium
(c) Perimetrium
(d) All of this
(a) Endometrium
- The events of the menstrual cycle are comprised of how many days
(a) 27 days
(b) 28 days
(c) 29 days
(d) 30 days
(b) 28 days
- In the menstrual cycle which period is known as the menstrual phase?
(a) 1 to 5 days
(b) 6 to 14 days
(c) 15 to 28 days
(d) 14 to 15 days
(a) 1 to 5 days
- Which period of the menstrual cycle is known as a proliferative phase?
(a) 1 to 5 days
(b) 6 to 14 days
(c) 15 to 28 days
(d) 14 to 15 days
(b) 6 to 14 days
- On which day of the menstrual cycle does ovulation occur?
(a) on 12th day
(b) on 13th day
(c) on 14th day
(d) on 15th day
(c) on 14th day
- During which days of the menstrual cycle do estrogen levels rise?
(a) 1 to 5 days
(b) 6 to 14 days
(c) 14 to 15 days
(d) 15 to 28 days
(b) 6 to 14 days
- On which days of the menstrual cycle do progesterone levels rise?
(a) 1 to 5 days
(b) 6 to 14 days
(c) 14 to 15 days
(d) 15 to 28 days
(d) 15 to 28 days
- The sperms emptied in the vagina start moving towards oviducts through the uterus which is helpful in their locomotion
(a) Contraction of uterine wall
(b) Contraction vagina passage
(c) The slimy secretion of oviduct wall
(d) All these
(d) All these
- What time is taken by the sperm emptied in vagina, to move toward the uterus?
(a) 4 to 5 hours
(b) 5 to 6 hours
(c) 3 to 4 hours
(d) 2 to 3 hours
(b) 5 to 6 hours
- In fertilization which part of sperm enters the secondary oocyte?
(a) Tail
(b) Head
(c) Middle part
(d) (b) and (c) both
(d) (b) and (c) both
- After fertilization, which changes prevent entry of other sperms into the oocytes?
(a) Egg membrane
(b) Fertilization membrane
(c) Vitelline membrane
(d) (a) and (c) both
(b) Fertilization membrane
- When fertilized ovum is converted into zygote?
(a) On entry of sperm in ovum
(b) On entry of sperm in secondary pronucleus
(c) On fusion of male and female pronucleus
(d) After change into fertilization membrane
(c) On fusion of male and female pronucleus
- During movement of zygote into oviduct the division of zygote in 2 to 16 daughter cells. This process called
(a) Cleavage
(b) Gastrulation
(c) Morula
(d) (a) and (b) both
(a) Cleavage
- The division of it forms into 16 daughter cells
(a) Blasto cell
(b) Blastomeres
(c) Morula
(d) (a) and (b) both
(b) Blastomeres
- The embryo with 16 cells is called
(a) Blastocyst
(b) Blastomeres
(c) Morula
(d) Cleavage
(c) Morula
- What time period is required to form a blastocyst?
(a) One week
(b) 8 days
(c) two week
(d) 9 days
(a) One week
- The fluid within the blastocyst is formed by the cells of
(a) Blastomere
(b) Trophoblast
(c) Inner layer of blastocyst
(d) None of this
(b) Trophoblast
- Which cells secrete the enzymes to make implantation of embryos possible?
(a) Trophoblast
(b) Blastomere
(c) Outer layer of uterus
(d) Outer layer of blastocyst
(a) Trophoblast
- What is the normal pregnancy period in humans?
(a) 266 days
(b) 280 days
(c) 270 days
(d) 275 days
(a) 266 days
- The fertilized ovum during the first 12 weeks is called
(a) Embryo
(b) Foetus
(c) Blastocyst
(d) (a) & (b) both
(a) Embryo
- In humans after implantation what is the elaborate projection developed from trophoblast called?
(a) Embryonic Layer
(b) Chorionic villi
(c) Placenta
(d) Umbilical cord
(b) Chorionic villi
- In human embryonic development chorionic villi which cooperate with the tissue of the mothers uterus to form
(a) Placenta
(b) Umbilical cord
(c) Amniotic cavity
(d) Embryonic disc
(a) Placenta
- Function of the placenta is
(a) to deliver nutrients to embryo
(b) to deliver oxygen to embryo
(c) remove wastes from the embryonic blood
(d) all of these
(d) all of these
- Which part is present between the placenta and embryo?
(a) Umbilical cord
(b) Amniotic cavity
(c) Embryonic disc
(d) (b) & (c) both
(a) Umbilical cord
- Which hormones are not produced by placenta?
(a) hcG
(b) hpL
(c) estrogens
(d) relaxin
(d) relaxin
- The signals for parturition originate from
(a) Fully developed foetus
(b) placenta
(c) Uterus
(d) (a) & (b) both
(d) (a) & (b) both
- At the time of delivery which hormones stimulate more frequent and powerful contraction of the uterus?
(a) Oxytocin and Prostaglandins
(b) Estrogen and Progesterone
(b) Oxytocin and Vasopressin
(d) Estrogen and Prostaglandins
(a) Oxytocin and Prostaglandins
- During delivery which glands send signals for the release of oxytocin?
(a) Posterior Pituitary
(b) Anterior Pituitary
(c) Hypothalamus
(d) None of this
(a) Posterior Pituitary
- After delivery, the mammary gland starts producing milk. In milk, which necessary substance is present for immunity?
(a) Lactose
(b) Protein
(c) Fat
(d) Antibodies
(d) Antibodies
- How much blood is lost during the menstrual cycle period?
(a) 25 to 100 ML
(b) 50 to 150 ML
(c) 75 to 175 ML
(d) 20 to 75 ML
(d) 20 to 75 ML
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