Which one of the following is not formed from mesoderm?

1.Which one of the following is not formed from mesoderm?
(a) Blood
(b) Bones and cartilage
(c) Kidneys
(d) Nervous system
Answer: (d)

2.Which one of the following events is correctly matched with the time period of the normal menstrual cycle?
(a) Release of ovum – 5th day
(b) Endometrium regenerates – 5 – 10 days
(c) Endometrium secretes nutrients for implantation – 11 – 18 days
(d) Rise in progesterone level – 1 – 15 days
Answer: (b)

3.Which one is unpaired gland in male reproductive system
(a) Seminal vesicle
(b) Cowper’s gland
(c) Prostate gland
(d) Lacrimal gland
Answer: (c)

4.Which one is not associated with gametogenesis?
(a) Formation of ova
(b) Formation of spermatid
(c) Release of ova
(d) Change of spermatids of spermatozoa
Answer: (c)

5.Which one is involved in nourishing spermatozoans?
(a) Leydig cells
(b) Gubernaculum
(c) Sertoli cells
(d) Interstitial cells
Answer: (c)

6.Which one is initiated by secretion of trophoblast?
(a) Blastulation
(b) Cleavage
(c) Gastrulation
(d) Implantation
Answer: (d)

7.Which one is incorrect about menstruation?
(a) At menopause, there is abrupt increase in gonadotrophic hormones
(b) Beginning of cycles of menstruation is called menarche
(c) During normal menstruation about 40 ml of blood is lost
(d) The menstrual fluid can easily clot
Answer: (d)

8.Which one holds corona radiata?
(a) Mucopolysaccharide
(b) Oligosaccharide
(c) Lipopolysaccharide
(d) Lipoprotein
Answer: (a)

9.Which one functions as endocrine gland after ovulation?
(a) Stroma
(b) Vitelline Membrane
(c) Germinal epithelium
(d) Graafian follicle
Answer: (d)

10.Which of the following is ectodermal?
(a) Muscular tissue
(b) Epithelial tissue
(c) Nervous tissue
(d) Connective tissue
Answer: (c)

11.Which of the following is a gonad?
(a) seminal vesicle
(b) penis
(c) testis
(d) all of the above
Answer: (c)

12.Which of the following hormones prepares endometrium for embryo implantation?
(a) LH
(b) Progesterone
(c) FSH
(d) Testosterone
Answer: (b)

13.Which is incorrect?
(a) Menstruation lasts 4 days
(b) Menstrual cycle takes 28 days
(c) Menopause occurs at 45 – 55 years
(d) Ovulated egg released during pregnancy die
Answer: (d)

14.Which is ectodermal in origin?
(a) Kidney
(b) Lungs
(c) Brain
(d) Notochord
Answer: (c)

15.Which hormone is responsible for the rupture of follicle and initiating the formation of corpus luteum?
(a) follicle stimulating hormone
(b) luteotropin
(c) luteinizing hormone
(d) all of the above
Answer: (c)

16.Which group represents external genitalia of human female?
(a) Labium minora, labium majora, vagina
(b) Labium minora, labium majora, oviduct
(c) Labium minora, labium majora, cervix
(d) Labium minora, labium majora, clitoris
Answer: (d)

17.Which extraembryonic membrane in humans prevents desiccation of embryo inside the uterus?
(a) Yolk sac
(b) Amnion
(c) Chorion
(d) Allantois
Answer: (b)

18.Which cells of the testis provide nourishment to spermatozoa?
(a) Sertoli cells
(b) Leydig cells
(c) Interstital cells
(d) Spermatogonia
Answer: (a)

19.When egg is not fertilized, yellow coloured corpus luteum degenerates to form
(a) Corpus albicans
(b) Corpus callosum
(c) Corpus striatum
(d) Corpora quadrigemina
Answer: (a)

20.What is true about cleavage in fertilized egg of humans?
(a) Meroblastic
(b) Starts when egg reaches uterus
(c) starts in fallopian tube
(d) It is identical to normal mitosis
Answer: (c)