CBSE Questions for Class 12 Medical Biology Human Reproduction Quiz 11 - MCQExams.com

Which one of the following is not a male accessory gland?
  • Seminal vesicle
  • Ampulla
  • Prostate
  • Bulbourethral gland
What do A, B, C, and D represent?
929585_3dadf0a7de0d4323a817a67a229c6163.png
  • (A) - Infundibulum, (B) - Fertilisation, (C) - Myometrium, (D) - Morula
  • (A) - Infundibulum, (B) - Ovum, (C) - Endometrium, (D) - Morula
  • (A) - Isthmus, (B) - Fertilisation, (C) - Myometrium, (D) - Blastocyst
  • (A) - Isthmus, (B) - Ovum, (C) - Endometrium, (D) - Morula
Identify the odd one from the following.
  • Labia minora
  • Fimbriae
  • Infundibulum
  • Isthmus
Shortest phase in the menstrual cycle of women is
  • menstrual phase
  • luteal phase
  • ovulatory phase
  • follicular phase.
Match between the following representing parts of the sperm and their functions and choose the correct option.
Column AColumn B
A.Head(i)Enzymes
B.Middle piece(ii)Sperm motility
C.Acrosome(iii)Energy
D.Tail(iv)Genetic material
  • A - (ii), B - (iv), C - (i), D - (iii)
  • A - (iv), B - (iii), C - (i), D - (ii)
  • A - (iv), B - (i), C - (ii), D - (iii)
  • A - (ii), B - (i), C - (iii), D - (iv)
In vitro fertilisation is a technique that involves transfer of which one of the following Into the Fallopian tube?
  • Embryo only, upto 8 cell stage
  • Either zygote or early embryo upto 8 cell stage
  • Embryo of 32 cell stage
  • Zygote only
In which of the following embryonic stages does the implantation take place? 
The stage between 40-50 years in woman is known as
  • Aborsion
  • Pregnancy
  • Menopause
  • Menstrual cycle
Some important events in the human female reproductive cycle are given below. Arrange the events in a proper sequence.
A - Secretion of FSH, 
B - Growth of corplus luteum, 
C - Growth of the follicle and oogenesis, 
D - Ovulation, 
E - Sudden increase in the levels of LH
  • $$A\rightarrow D\rightarrow C\rightarrow E\rightarrow B$$
  • $$B\rightarrow A\rightarrow C\rightarrow D\rightarrow E$$
  • $$C\rightarrow A\rightarrow D\rightarrow B\rightarrow E$$
  • $$A\rightarrow C\rightarrow E\rightarrow D\rightarrow B$$
 The male sex hormone testosterone is secreted by
  • Vas deferens
  • Epididymis
  • Leydig's cell
  • Prostate gland
Identify the human developmental stage shown here as well as the related correct place of its implantation in a normal pregnant woman, and select the right option for the two, together.   
  Developmental stage Site of implantation
 (a) Late morula            - Middle part of Fallopian tube
 (b)  Blastula                  - End part of Fallopian tube
 (c) Blastocyst              - Uterine wall
 (d) 8-cellec morula      - Starting point of Fallopian tube

930954_ded44dcd080f40c68e99515edea3f5ba.jpg
  • (a)
  • (b)
  • (c)
  • (d)
State the following statement is true or false.
Leydig cells synthesise androgens.
  • True
  • False
State the following statement is true or false.
Menstrual cycle ceases during pregnancy.
  • True
  • False
Which one of the following is initiated by secretion  of trophoblast?
  • Blastulation
  • Gastrulation
  • Implantation
  • Cleavage
In human female the blastocyst
  • forms placenta even before implantation
  • gets implanted into uterus $$3$$ days after ovulation
  • gets nutrition from uterine endometrial secretion only after implantation
  • gets implanted in endometrium by the trophoblast cell.
What is the correct sequence of sperm formation?
  • Spermatogonia, spermatozoa, spermatocyte, spermatid
  • Spermatogonia, spermatocyte, spermatid, spermatozoa
  • Spermatid, spermatocyte, spermatogonia, spermatozoa
  • Spermatogonia,spermatocyte, spermatozoa, spermatid.
The secretory phase in the human mestrual cycle is also called
  • luteal phase and lasts for about $$6$$ days
  • follicular phase and lasts for about $$6$$ days
  • luteal phase and lasts for about $$13$$ days
  • follicular phase and lasts for about $$13$$ days
In the diagram of implanatation of blastocyst, choose the correct match
987649_e45f82d48746442390260b3cebf5a72e.jpg
  • A = Blastocyst cavity, B = Trophoblast, C = Inner cell mass, D = Endometrium of uterus
  • A = Trophoblast, B =Blastocyst cavity, C = Inner cell mass, D = Endometrium of uterus
  • A = Blastocyst cavity, B = Trophoblast, C = Endometrium of uterus, D = Inner cell mass
  • A = Inner cell mass, B = Trophoblast, C = Endometrium of uterus, D = Blastocyst cavity
What is the total number of seminiferous tubules found in humans?
  • 750 - 1200
  • 200 - 300
  • 1500 - 2000
  • 25 - 30
All the following occurs during natural menopause except? 
  • Progesterone levels in blood increases
  • Estrogen levels in blood increases
  • Both A and B
  • FSH and LH levels in blood increases
The vas deferens connects the ______________.
  • Ureter to seminal vesicles
  • Epididymis to urethra
  • Epididymis to ureter
  • Epididymis to testis
If the sperm count of a human male is 200 million per ejaculate, then how many sperms should have at least normal shape, size and vigorous motility for normal fertility? 
  • 120 million
  • 48 million
  • 80 million
  • 60 million
The basis of the Sertoli cells adheres to the basal lamina and their apical ends frequently expand into the .......... of the seminiferous tubules.
  • Surface
  • Lumen
  • Outer membrane
  • Inner layer
Which of the following statements can be related to Leydig cells?
  • They stimulate spermatogenesis.
  • They stimulate oogenesis.
  • They promote lactation.
  • None of the above
The number of chromosomes in the spermatozoa of human beings is
  • $$1$$
  • $$2$$
  • $$23$$
  • $$46$$
What happens during the follicular phase of menstrual cycle?
  • Proliferation of endometrium wall
  • Reduction of endometrium wall
  • Shedding of endometrium wall
  • No effect on endometrium wall
Which one of the following is the correct route that a sperm follows when it leaves the testis of a mammal?
  • Vas deferens $$\rightarrow$$ Epididymis $$\rightarrow$$ Urethra
  • Urethra $$\rightarrow$$ Epididymis $$\rightarrow$$ Vas deferens
  • Epididymis $$\rightarrow$$ Urethra $$\rightarrow$$ Vas deferens
  • Epididymis $$\rightarrow$$ Vas deferens $$\rightarrow$$ Urethra
Functional maturation of sperms take place in
  • Seminal vesicles
  • Epididymis
  • Vas deferens
  • Somniferous tubule
Read the following regarding male accessory glands and select the incorrect option.
  • One pair of seminal vesicles are present.
  • One pair of bulbourethral glands are present.
  • One pair of prostrate gland are present.
  • All of the above
A $$55$$ years old female was analyzed for her hormonal status. Some hormones are increased in blood and excreted in urine. These hormones are
  • Estrogen, progesterone and $$FSH$$
  • Progesterone and $$LH$$
  • $$LH$$ and $$FSH$$
  • Estrogen and $$FSH$$
Vasa deferentia receives a duct from .....A..... and opens into the .....B..... as the ejaculatory duct. A and B in the above statement is
  • A - Vas deferens; B - Urinary bladder
  • A - Seminal vesicles; B - Urethra
  • A - Urethra; B - Seminal vesicles
  • A - Urethra; B - Urinary bladder

How many meiotic divisions are required for the formation of 50 zygotes?
  • 62
  • 63
  • 61
  • 50
Current sequence in development is :
  • Fertilization $$\rightarrow$$ Zygote $$\rightarrow$$ Cleavage $$\rightarrow$$ Morula $$\rightarrow$$ Blastula $$\rightarrow$$ Gastrula
  • Fertilization $$\rightarrow$$ Zygote $$\rightarrow$$ Blastula $$\rightarrow$$ Morula $$\rightarrow$$ Cleavage $$\rightarrow$$ Gastrula
  • Fertilization $$\rightarrow$$ Cleavage $$\rightarrow$$ Morula $$\rightarrow$$ Zygote $$\rightarrow$$ Blastula $$\rightarrow$$ Gastrula
  • Cleavage $$\rightarrow$$ Zygote $$\rightarrow$$ Fertilization $$\rightarrow$$ Morula $$\rightarrow$$ Blastula $$\rightarrow$$ Gastrula
In context to menstrual cycle, which is the wrong statement?
  • Around $$40$$ml of blood is discarded in a menstrual cycle
  • The menstrual fluid including blood, easily coagulates
  • Menstrual cycle generally starts from $$12$$ th year of age
  • Disturbing menstrual cycle with hormonal tablets, causes side effects
In tracing the path of sperm from testis to outside, you would mention the vas deferens before the
  • Testes
  • Epididymis
  • Urethra
  • Uterus
Which is the vital link that ensures continuity of species between organisms of one generation and the next ?
  • Sexual reproduction
  • Embryo
  • Zygote
  • Fertilisation
State whether the following statements are true or false. If false, write changing the incorrect word / words only.
Menarche is the permanent stoppage of menstruation in females
  • True
  • False
Interstitial cells produce testosterone.
  • True
  • False
What do you mean by implantation?
  • Fusion of male gemete with female gemete
  • Embedding of embryo in the thick lining of uterus
  • Developing a special tissue between uterus wall and embryo
  • The period of gestation
  • None of these
The tube-like structure in the human male reproductive system, which carries sperm from epididymis to towards urethra is called:
  • Ureter
  • Vas deferens
  • Seminal vesicles
  • Prostate gland
  • None of these
Ovulation in the human female normally takes place during the menstrual cycle.
  • At the mid secretory phase
  • Just before the end of the secretory phase
  • At the beginning of the proliferative phase
  • At the end of the proliferative phase
The main function of mammalian corpus luteum is to produce
  • Oestrogen only
  • Progesterone
  • Human chorionic gonadotropin
  • Relaxin only
Male accessory glands include.
  • Paired seminal vesicles
  • A prostate gland
  • Paired bulbourethral gland
  • All of the above
A woman presents to her physician complaining that her menstrual cycles are irregular. She reports that she menstruates each month, but she cannot predict when. After reporting the dates of her last 5 periods, her physician concluded that her cycle is normal, but that is a 35 days cycle. She reports that she wants to get pregnant, but cannot predict when ovulation will occur. Her physician will tell her that she should  expect to ovulate on day.
  • $$10$$
  • $$17$$
  • $$15$$
  • $$21$$
Which covering of testis is indicative of its abdominal original?
  • Tunica vaginalis
  • Tunica albuginea
  • Tunica vasculosa
  • Tunica dartos
The time for optimum chances of conception in a woman is starting from the day of menstruation.
  • 1st day
  • 4th day
  • 14th day
  • 26th day
Which of the following is a set of male accessory ducts?
  • Rete testis, vasa efferentia, tubuli recti
  • Rete testis, vasa efferentia, epididymis and vas deferens
  • Epididymis, ejaculatory duct, urethra
  • Seminiferous tubules, vasa efferentia epididymis and vas deferens
Identify the A, B, C and D in given diagram of male reproductive system and choose correct option.
1288441_0aee64fbe1fe457c95230f0159a175f6.png
  • A- Ejaculatory duct: Receive both urine as well as semen
  • B- Prostate : Unpaired accessory sex gland in male
  • C- Urethra : Carry urine and semen and passes through corpora cavernosa
  • D- Vas deference: Carry secretion of prostate, seminal vesicle and sperms
Vasa efferentia posses 
  • Peristalsis
  • Secretory cells
  • Ciliated cells
  • Opening for seminal vesicle
Second male gamete unites with two polar nuclei to form ________.
  • Zygote
  • Embryo
  • Embryo sac
  • Endosperm
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