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Extra embryonic membranes of mammalian embryo are derived from:
1. Inner cell mass
2. Formative cells
3. Trophoblast cells
4. Follicle cells

Each seminiferous tubule is lined on its inside by:
1. Spermatogonia
2. Primary spermatocytes
3. Sertoli cells
4. Both 1 and 3

Each Ovary is connected to the pelvic wall and the uterus by:
1. Peritoneum
2. Adipose tissue
3. Ligaments
4. Areolar tissue

The final release of sperms from the seminiferous tubules is called:
1. Spermiation
2. Emission
3. Retrograde ejaculation
4. Ejaculation

FSH:
1. Acts on Sertoli cells and stimulates secretion of some factors that help in spermiogenesis
2. Acts on Sertoli cells and inhibits secretion of some factors that help in spermiogenesis
3. Acts on Leydig cells and stimulates secretion of some factors that help in spermiogenesis
4. Acts on Leydig cells and inhibits secretion of some factors that help in spermiogenesis

The function of male sex accessory ducts and glands are maintained by:
1. Hypothalamic releasing hormone
2. Pitutary gonadotropins
3. Adrenal cortex steroids
4. Testicular androgens

The division of primary oocyte results in:
1. unequal cells a smaller haploid secondary oocyte and a larger diploid polar body
2. unequal cells a larger haploid secondary oocyte and a smaller haploid polar body
3. unequal cells a smaller diploid secondary oocyte and a larger haploid polar body
4. equal cells - a haploid secondary oocyte and a haploid polar body

The correct sequence of the various phases of a typical menstrual cycle is:
1. Menstrual → Follicular → secretory → Ovulatory
2. Menstrual → Follicular → Ovulatory → secretory
3. Ovulatory → Follicular → secretory → Menstrual
4. Menstrual → secretory → Follicular → Ovulatory

During pregnancy:
1. All events of menstrual cycle stop and there is no menstruation
2. Events of menstrual cycle continue but there is no menstruation
3. Events of menstrual cycle contInue but there is menstruation only in the first trimester
4. All events of menstrual cycle stop and there is menstruation only in the first trimester

In the absence of fertilization, corpus luteum:

What ensures that only one sperm can fertilize the ovum?
1. Corona radiata
2. Ground substance around ovum
3. Zona pellucida
4. Acrosome

The first movements of the fetus and the appearance of hair on the head are usually observed during:
1. 2^nd month
2. 3^rd month
3. 5^th month
4. 6^th month

At what point does the secondary oocyte complete meiosis?
1. when acrosomal enzymes begin to break down the egg's jelly coat
2. when the luteinizing hormone triggers ovulation
3 after it is penetrated by a sperm cell
4. when the secondary oocyte implants in the endometrium of the uterus

Which of the following hormones is not secreted by the human placenta?
1. HCG
2. HGH
3. HPL
4. Progesterone

Which event is incorrectly matched with the time of its occurence [with respect to a 28 days menstrual cycle]?
1. Beginning of the menstrual flow - Day 1
2. Ovulation - Day 14
3. Beginning of the proliferative phase - Day 5
4. Peak  secretion of estrogen - Day 22

The human fetus develops limbs and digits:
1. After one month of pregnancy
2. By the end of second month of pregnancy
3. During the fifth month of pregnancy
4. By the end of second trimester of pregnancy

The number of spermatozoa, a single primary spermatocyte ultimately produces in spermatogenesis, is 
(1) Eight
(2) Four
(3) Two
(4) One

Graafian follicle of ovary secretes which hormone
1. Cortisone
2. Relaxin
3. Progesterone
4. None of these

Which of the following hormones acts on the Sertoli cells to stimulate secretion of some factors which help in the process of spermiogenesis?
1. FSH
2. LH
3. Testosterone
4. GnRH

Menstruation is triggered by an abrupt decline in the amount of:
1. Estrogen
2. Progesterone
3. LH
4. FSH

Capacitation occurs in
(1) rete testis
(2) epididymis
(3) vas deferens
(4) female reproductive tract

Match column I with column II and select the correct option using the codes given below
    Column 1                             Column II
A. Mons pubis                  1. Embryo formation
B. Antrum                        2. Sperm
C. Trophectoderm            3. Female external genitalia 
D. Nebenkern                   4. Graafian follicle
Codes
      A      B     C       D
(a)  3      4     2       1
(b)  3      4     1       2
(c)  3      1     4       2
(d)  1      4     3       2
 

Ectopic pregnancies are referred to as
1. pregnancies with genetic abnormality
2. implantation of embryo at site other than uterus
3. implantation of defective embryo in the uterus
4. pregnancies terminated due to the hormonal imbalance

Select the correct option describing gonadotropin activity in a normal pregnant female
1. High level of FSH and LH stimulates the thickening of endometrium
2. High level of FSH and LH facilitate implantation of the embryo
3. High level of HCG stimulates the synthesis of estrogen and progesterone
4. High level of HCG stimulates the thickening of endometrium

Which one of the following is not the function of placenta?
1. facilitates supply of oxygen and nutrients to embryo
2. secretes oestrogen
3. facilitates removal of carbon dioxide and waste material from embryo
4. secretes oxytocin during parturition

If for some reason, the vasa efferentia in the human reproductive system get blocked,
the gametes will not be transported from
1. epididymis to vas deferens
2. ovary to uterus
3. vagina to uterus
4. testes to epididymis

Given below is a diagrammatic sketch of a portion of human male reproductive system.
Select the correct set of the names of the parts labelled A, B, C, D.

         A                         B                             C                                    D
1. Ureter                Prostate                 Seminal vesicle              Bulbourethral gland
2. Vas deferens       Seminal vesicle       Prostate                        Bulbourethral gland
3. Vas deferens       Seminal vesicle       Bulbourethral gland        Prostate
4. Ureter                Seminal vesicle       Prostate                        Bubourethral gland

Which extra embryonic membrane in humans prevents desiccation of the embryo inside
the uterus ?
1. Chorion
2. Allantois
3. Yolk sac
4. Amnion

Which part of ovary in mammals acts as an endocrine gland after ovulation?
1. Graafian follicle
2. Stroma
3. Germinal epithelium
4. Vitelline membrane

Which of the following statements is incorrect ?
1. The spermatids differentiate into structurally complex spermatozoa by the process of
spermiogenesis.
2. Fertilisation is a physico-chemical event.
3. Cleavage transforms the fertilized ovum into a sphere of aggregated blastomeres.
into a sphere of aggregated blastomeres.
4. Cleavage divisions bring appreciable increase in the mass of protoplasm in the
developing embryo.

An oocyte is released from the ovary under the influence of LH
1. After completing meiosis and before polar body are released
2. After completing meiosis I and before release of polar body
3. After completing meiosis
4. After completing meiosis I and after release of polar body

A cross section at the midpoint of the middle piece of a human sperm will show
(1) centriole, mitochondria and 9+2 arrangement of microtubules
(2) centriole and mitochondria
(3) mitochondria and 9+2 arrangement of microtubules
(4) 9+2 arrangement of microtubules only

Which of the following is true regarding sperm?
(1) Fertilizin : For penetrating egg membrane
(2) Hyaluronidase : For penetrating egg membrane
(3) Acrosin : Dissolves corona radiata
(4) Capacitation : Takes place in penis

Starting from the maximum, arrange the following male reproductive accessory organs in the correct order, based on the amount of secretion poured into urethra
(i) Prostrate gland
(ii) Seminal vesicle
(iii) Bulbourethral gland
(1) (i) > (ii) > (iii)
(2) (iii) > (ii) > (i) 
(3) (ii) > (iii) > (i)
(4) (ii) > (i) > (iii)

Select the correct explanation for the labels A, B, C and D.

(1)    A represents the fertilized zygote.
(2)    B represents the stage of morula formation.
(3)    C represents the blastocyst.
(4)    D represents the blastocyst implantation.
 

During pregnancy, which of the following is secreted through the urine of mother ?
(1) Progesterone
(2) Luteinising hormone
(3) FSH
(4) Human chorionic gonadotropic hormone

Correct hormonal sequence in the case of menstruation as
(1) oestrogen, FSH, progesterone
(2) Oestrogen, progesterone, FSH
(3) FSH, progesterone, oestrogen
(4) FSH, oestrogen, progesterone

From which of the embryological germ layers is the epithelial tissue derived
(I) ectoderm
(II) mesoderm
(III) endoderm
(1) I & II are correct
(2) I & III are correct
(3) II & III are correct
(4) I & II & III are correct

Assertion   :       Nuclear-cytoplasmic ratio decreases in cleavage.
Reason      :       During cleavage, cytoplasmic synthesis is faster than DNA synthesis.

Clitoris is located at

What is the order of layers or space from outside to inside?