Section-A

1.Which hormone level reaches peak during luteal phase of menstrual cycle?

2.Cryptorchidism is a condition in which

3.Correct sequence in development is

4.Ovum is

5.Extraembryonic membranes, chorion and amnion are formed by

The trophoblast encircles the blastocoel and inner mass cell. The inner mass cell is the precursor of the embryo. It means that inner mass give rise to embryo. The cells of the trophoblast helps to provide the nutrition to the embryo. The cells of the trophoblast form extra embryonic membranes namely chorion and amnion. The cells of the trophoblast which are in contact with inner mass are called cells of raubers

6.Inner portion of the seminiferous tubules contain

Inner portion of seminiferous tubules is lined by male germ cells and Sertoli cells

7.Largest egg is

8.The hormone that prepares and maintains the uterus during pregnancy is secreted by

9.The part of fallopian tube closest to the ovary is

10.The 60% of semen is produced by the

11.Cleavage is the rapid mitotic division. It occurs in

12.How many compartments (approx.) are there in each human testis?

13.The target of the hormone ICSH is

14.Sperm lysins contains

15.Which part of ovary in mammals acts as an endocrine gland after ovulation?

16.Primary oocyte surrounded by a layer of granulosa cells is called

Primary oocyte surrounded by a layer of granulosa cell called primary follicle which are 2n in number.

Oogenesis is the process of formation of mature ovum. It has three phases
(a) Multiplication Phase Oogenesis takes place in embryo stage. A couple of million of gamete mother cells (oogonia) are formed within each foetal ovary. No more oogonia are formed after birth. These cells (oogonia) get into prophase-I of meiotic division. They get temporarily arrested as this stage called primary oocyte
(b) Growth Phase Each primary oocyte then gets surrounded by a layer of granulosa cells. This structure is called the primary follicle. A large number of these follicles degenerate during the phase from birth to puberty. At puberty, only 60000 and 80000 primary follicles are left in each ovary. The primary follicles get surrounded by more layers of granulosa cells and a new theca to form secondary follicles
(c) Maturation Phase In the first maturation phase, the secondary follicle soon transforms into a tertiary follicle. The primary oocyte within the tertiary follicle grows in size and completes its first meiotic division to form a large haploid secondary oocyte and a tiny first polar body
The tertiary follicle changes into a mature follicle-the Graafian follicle which ruptures to release the secondary oocyte (ovum) from the ovary by a process called ovulation. The second maturation phase occurs after fertilization when the meiotic division of the secondary oocyte is complete. This second meiotic division results in the formation of a second polar body and a haploid ovum (ootid)

17.In human, the unpaired male reproductive structure is

18.Each ovary is bout 2-4 cm in length connected to the __A__ wall by __B__ Each ovary is covered by a thin epithelium which encloses the ovarian stroma. Stroma is divided into two zones __C__ and __D__
Fill the suitable choices for A to D

19.Structure connecting the foetus to placenta is

20.Releasing of sperms from seminiferous tubules is called

21.Hormone, which is responsible for contraction of uterus is

22.In human beings, normally in which one of the following parts, does the sperm fertilize the ovum?

23.The events of the menstrual cycle are represented below. In which of the following option the level of FSH, LH and progesterone is mentioned correctly

13-14 day (Proliferative phase)
FSH and LH have high concentration, whereas progesterone has low concentration.
16th-20th day (Luteal phase)
FSH and LH have low concentration, whereas progesterone has high concentration.

24.Sperm lysin is found in

25.Spermatogenesis is induced by

26.Adrenal gland is derived from

27.The leydig’s cells secrete

28.Natural parthenogenesis is found in

29.Parturition is

30.Corpus luteum is developed from

31.Women who consumed the drug thalidomide for relief from vomiting during early months of pregnancy gave birth to children with

32.In human lining of gastrointestinal tract, lining of lungs, thymus thyroid, tonsils, kidney duct and bladder are derived from

33.Acrosome is the modified

34.Give the name of two hormones A and B in the figure given below

35.Arrange the events of menstrual cycle as they occur
I. Secretion of FSH
II. Growth of corpus luteum
III. Growth of follicle and oogenesis
IV. Ovulation
V. Sudden increase in level of LH

Section-B

36.At the time of implantation, the human embryo is called

Embryo
Blastocyst
Zygote
Foetus

37.Which one of the following is the correct matching of the events occurring during menstrual cycle?

Ovulation – LH and FSH attain peak level and sharp fall in the secretion of progesterone
Proliferative phase – Rapid regeneration of myometrium and maturation of Graafian follicle
Development of corpus luteum – Secretory phase and increased secretion of progesterone
Menstruation – Breakdown of myometrium and ovum not fertilized

38.Vasa efferentia are the ductules leading from

Testicular lobules to rete testis
rete testes to vas deferens
Vas deferens to epididymis
Epididymis to urethra

39.The epididymis leads to __A__ that ascends to abdomen and loops over the __B__ Here A and B refers to

A-epididymis; B-vas deferens
A-vas deferens; B-epididymis
A-vas deferens; B-urinary bladder
A-urinary bladder; B-vas deferens

40.

A-Trophoblast; B-Inner mass of cell
A-Trophoderm; B-Embroyblast
Either of the above
Both of the above

41.Our all bones are derived from the mesoderm. Except

Facial
Femur
Redula
Occipital

42.Head region of the sperm contains

Nucleus and acrosome
Middle piece and neck region
Nucleus and tail
Middle piece and nucleus

43.Graafian follicle contains

Oogaonial cells
Corpus luteum
Theca externa and theca interna
Corpus albicans

44.In menstrual cycle, the menstrual phase last for

3-5 days
5-6 days
1-3 days
2-3 days

45.A chemical fertilizin is produced from

Polar bodies
Middle piece of sperm
Acrosome
Mature eggs

46.Given a diagram showing a portion of a seminiferous tubule. Identify the marked alphbates

A-Sertoli cells, B-Spermatogonium, C-Primary spermatocyte, D-Secondary spermatocyte, E-Spermatids, F-Leydig cell
A- Leydig cells, B- Primary spermatocyte, C- Spermatogonium, D-Secondary spermatocyte, E-Spermatids, F- Sertoli cells
A- Leydig cells, B-Spermatogonium, C-Primary spermatocyte, D-Secondary spermatocyte, E-Spermatozoa, F- Sertoli cell
A- Leydig cells, B-Spermatogonium, C-Primary spermatocyte, D-Secondary spermatocyte, E-Spermatids, F- Sertoli cell

47.In humans, at the end of the first meiotic division, the male germ cells differentiate into the

Primary spermatocytes
Secondary spermatocytes
Spermatids
Spermatogonia

48.Sperm entry takes place in the secondary oocyte by

Cone of rejection
Cone of reception
Fertilisation cone
Both Cone of reception and Fertilisation cone

49.Vasa deferentia together with seminal vesicle forms

Caput epididymis
Corpus epididymis
Ejaculatory duct
Cauda epididymis

50.Which of the following hormones is secreted by implanted blastocyst, that acts on the corpus luteum in the ovary, stimulating the body to produce oestrogens and progesterone to maintain the uterine lining?

Oestrogen
HCG
Progesterone
Oxytocin