CBSE Questions for Class 12 Medical Biology Human Reproduction Quiz 7 - MCQExams.com

The part of the female reproductive system that produces the eggs?
  • Ovary
  • Epididymis
  • Cervix
  • Fallopian tube
The site of maturation of human sperms is the
  • Seminiferous tubule
  • Interstitial cells
  • Epididymis
  • Prostate gland
Menstrual cycle starts at  the ________________
  • Early stage of adolescence
  • Middle stage of adolescence
  • Late adolescence
  • Puberty
Arrange the following with regard to their occurrence in spermatogenesis.
(a) Spermatogonia (b) Secondary spermatocyte (c) Spermatogonial stem cells (d) Primary spermatocyte (e) Spermatid
  • c - d - b - a - e
  • c - a - d - b - e
  • a - b - c - d - e
  • c - d - a - b - e
Two individuals produced from a single zygote are 
  • Two girls looking similar
  • Two girls not looking similar
  • Two boys not looking similar
  • One boy and one girls not looking similar
Sertoli cells are found in
  • Kidney
  • Ovary
  • Liver
  • Testis
The only organ which is capable of producing Fructose in humans is 
  • Liver
  • Pancreas
  • Seminal vesicles
  • Muscle
A regular check on the unborn baby of a lady towards the end of her pregnancy showed a heart rate of $$80$$ beats per minute. What would the doctor infer about the baby's heart condition from this?
  • Normal heart rate
  • Faster heart rate
  • Slower heart rate
  • Defective brain function
Identify the correct match from the Columns I, II and III.
IIIIII
Interstitial cellsa. Cortex of ovaryi. Follicular fluid
Sertoli cellsb. Ovarian follicleii. Progesterone
Granulosa cellsc. Testisiii. Attachment of sperm bundle
Cells of corpus luteumd. Seminiferous tubulesiv. Testosterone
  • 2-a-iii, 1-c-iv, 3-b-i, 4-d-ii
  • 1-c-iv, 2-d-iii, 3-b-i, 4-a-ii
  • 1-d-iii, 2-a-iv, 3-b-i, 4-c-ii
  • 2-d-iii, 1-c-iv, 3-a-ii, 4-b-iv
The fusion of gametes is called as
  • Embryo
  • Zygote
  • Ovum
  • Pollen grain
The glycoprotein, fertilizin is secreted by.
  • Ovum
  • Ovary
  • Sperm
  • Testis
When the nucleus of pollen grain fused with the nucleus of ovum .......... is formed.
  • Embryo
  • Fruit
  • Ovule
  • Zygote
All of the following stages occurs in asexual reproduction, except
  • Formation of identical plant
  • Fomation of zygote
  • Fomation of spores
  • None of the above
During ovukation, the ovary releases.
  • Oogonia
  • Ootid
  • Primary oocyte
  • Secondary oocyte
Identify the correct match :
Accessory glandsFunctions
i. Seminal vesiclesa. Lubricates vagina
ii. Prostate glandb. Provide energy, coagulation of sperm
iii. Cowpers glandc. Neutralizes acidity of vagina
  • i-b, ii-c, iii-a
  • i-c, ii-b, iii-a
  • i-a, ii-c, iii-b
  • i-c, ii-a, iii-b
The zygote develops into the
  • Gamete
  • Embryo
  • Seed
  • Fruit
Which one of the following character favours the process of normal spermatogenesis in human male?
  • Descent of tests into scrotum
  • Infection by mumps virus during childhood
  • Tests remain in the abdominal cavity
  • Increased scrotal temperature
Name the cell formed as a product of fertilization.
  • Embryo
  • Gamete
  • Zygote
  • Fruit
 How many autosomes are present in the ovum of human female?
  • $$22$$
  • $$22$$ pairs
  • $$23$$ pairs
  • $$44$$ pairs
Tunica vasculosa is present in the testis.
  • Outer to tunica albuginea
  • Inner to tunica albuginea
  • Outer to tunica vaginalis
  • Inner to tunica vaginalis
The spermiogenesis involves all of the following except
  • Formation of mitochondrial sheath
  • Formation of proximal and distal centrioles
  • Formation of acrosomes
  • Shortening of sperm
Spermiogenesis means ___________.
  • Primary spermatocytes change to secondary spermatocytes
  • Secondary spermatocytes change into spermatids
  • Spermatid matures into sperm
  • Sperm fuses with egg cell
The prostatic fluid forms about .......... of total volume of semen.
  • $$60\%$$
  • $$50\%$$
  • $$40\%$$
  • $$30\%$$
Select the correct match.

Column- AColumn- B
(a) Seminal fluid(i) Corpus spongiosum
(b) Prostate gland(ii) Membranous urethra
(c) Ejaculatory duct(iii) Clitoris
(d) Erectile tissues(iv) Fructose
(v) Prostaglandins
  • (a)-(iv)
  • (b)-(v)
  • (c)-(i)
  • (d)-(ii)
Stereocilia occurs on some of the cells lining.
  • Digestive tract
  • Male reproductive tract
  • Female reproductive tract
  • Urinary tract
An embryonic connective tissue is?
  • Wolman's jelly
  • Wharton's jelly
  • Wright's jelly
  • None of the above
Sertoli cells are called the nurse cells because of.
  • Nourishing the developing sperms
  • Sperms are formed
  • Male sex hormone is secreted
  • All the above
The diameter of seminiferous tubule is?
  • As thick as human hair
  • About $$3$$ times the thickness of human hair
  • Thinner than the human hair
  • None of the above
Which is located at the base of urinary bladder?
  • Seminal vesicle
  • Prostate gland
  • Bulbourethral gland
  • Ovary
Gametogenesis refers to the process of
  • Fusion of two gametes
  • Fusion of two gametangia
  • Formation of two types of gametes
  • Formation of male gametes only
Menstruation is caused by abrupt decrease of hormone
  • FSH
  • LH
  • Oestrogen
  • Progesterone
What is the height and weight of twelve weeks old human embryo?
  • 32 cm, 650 g
  • 7.5 cm, 14  g
  • 42 cm, 1800 g
  • 7.5 cm, 650 g
Identify the cells found in the wall of seminiferous tubules 
  • Sertoli cells
  • Leydig cells
  • Germ cells
  • None of these
Which of the following is a viviparous animal?
  • Cat
  • Sheep
  • Rabbit
  • All of the above
Menopause occurs in females at the age of
  • $$55-60$$ years
  • $$50-55$$ years
  • $$45-50$$ years
  • $$37-42$$ years
For ovulation in reflex ovulators 
  • Coitus is necessary.
  • Coitus is not necessary.
  • Oxytocin is to be released.
  • Prolactin is secreted before hand.
Menstrual cycle occurs in
  • Female primates
  • Human females
  • Mammalian females
  • Rabbit
First menstrual cycle is
  • Parturition
  • Menopause
  • Menarche
  • Implantation
Vasa efferentia possess
  • Peristalsis
  • Secretory cells
  • Ciliated cells
  • Openings for seminal vesicles
Vitelline membrane is a
  • Primary egg membrane
  • Secondary egg membrane
  • Teritiary egg membrane
  • None of the above.
Epididymis is
  • Network of sinuses between seminiferous tubules and vasa efferentia.
  • Intermediate structure between rete testis and vasa efferentia.
  • A long coiled tube between vasa efferentia and vas deferens.
  • Connection between vas deferens and seminal vesicle.
Meiosis occurs in
  • Primary spermatocytes
  • Secondary spermatocytes
  • Both A and B
  • Spermatogonia
Formation of primary spermatocyte/oocyte from a spermatogonium/oogonium requires
  • Mitosis
  • Meiosis I
  • Meiosis II
  • Growth
Vasa efferentia connect the
  • Testis with epididymis
  • Kidneys with epididymis
  • Testes with urinogenital ducts
  • None of the above
Development of foetus takes place in
  • Vagina
  • Uterus
  • Ovary
  • Oviduct
Glands of male reproductive system are
  • Prostate and seminal vesicles
  • Prostate, bertholin's and seminals
  • Seminal vesicles and bertholin's glands
  • Prostate, cowpers and seminals
In man, the sperms released from the testis take the following route to reach the urethra
  • Vasa efferentia, Bidder canal, uriniferous tubules and nephrostome
  • Vasa efferentia, epididymis, vas deferens and urethra
  • Vasa efferentia, Bidder's canal nephrostome
  • Vasa efferentia, collecting tubules and bidder canals
Seminiferous tubules open into
  • Epididymis
  • Vesa efferentia
  • Vasa deferentia
  • Rete testis
Which is the correct sequence in spermatogenesis?
  • Spermatogonia $$\rightarrow$$ Spermatids $$\rightarrow$$ Secondary spermatocytes $$\rightarrow$$ Primary spermatocytes $$\rightarrow$$ sperms
  • Spermatogonia $$\rightarrow$$ Spermatids $$\rightarrow$$ Primary spermatocytes $$\rightarrow$$ Secondary spermatocytes $$\rightarrow$$ Sperms
  • Primary spermatocytes $$\rightarrow$$ Secondary spermatocytes $$\rightarrow$$ Spermatids $$\rightarrow$$ Spermatogonia $$\rightarrow$$ Sperms
  • Spermatogonia $$\rightarrow$$ Primary spermatocytes $$\rightarrow$$ Secondary spermatocytes $$\rightarrow$$ Spermatids $$\rightarrow$$ Sperms
Supporting cells found in between spermatogonia are
  • Germinal cells
  • Sertoli cells
  • Epithelial cells
  • Lymph space
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