Question 1
Acrosome is made up of _________
A. Ribosome
B. Mitochondria
C. Centrioles
D. Golgi bodies
View Answer
Answer: Option D
Explanation:
Acrosome is made up of Golgi bodies. It contains digestive enzymes. It is present in sperm.
Question 2
All the mammals are viviparous.
A. True
B. False
View Answer
Answer: Option B
Explanation:
Viviparity refers to the development of the embryo inside the body and eventually leading to the live birth. All the mammals are not viviparous and some lay eggs.
Question 3
Among the following stem cells which are found in the umbilical cord?
A. Embryonic stem cells
B. Adult stem cells
C. Cord blood stem cells
D. Blood stem cells
View Answer
Answer: Option C
Explanation:
Cord blood cells are the blood left over in the placenta and in the umbilical cord after the birth of the baby. The cord blood is composed of RBCs, WBCs, plasma, platelets and is also rich in hematopoietic stem cells.
Question 4
Bidder’s canal is meant for the passage of _________
A. Sperms
B. Urine
C. Ova
D. Saline
View Answer
Answer: Option A
Explanation:
Bidder’s canal is a spherical, brownish organ. It is present in the kidney. Bidder’s canal is meant for the passage of Sperms. It is found in frogs.
Question 5
Cryptorchidism is a condition in which _________
A. Male hormones are not reactive
B. Ovaries are removed
C. Sperms are not formed
D. Testes fail to descend in scrotal sacs
View Answer
Answer: Option D
Explanation:
Cryptorchidism is also known as undescended testicle. It is a condition in which the testicles haven’t moved into the bag of skin below the penis before birth.
Question 6
Division of human egg is __________
A. Holoblastic and unequal
B. Meroblastic
C. Holoblastic and equal
D. Isoblastic
View Answer
Answer: Option A
Explanation:
Division of human egg is Holoblastic and unequal. Holoblastic cleavage is seen in the eggs containing moderate to sparse amount of yolk. Holoblastic cleavage is the complete division of an isolecithal or microlecithal egg into blastomeres.
Question 7
Human sperm moves with the help of _________
A. Cilia
B. Flagellum
C. Basal body
D. Nucleosome
View Answer
Answer: Option B
Explanation:
Human sperm is haploid. Human sperm moves with the help of Flagellum. It is found in the tail region of the sperm.
Question 8
Number of autosomes in human primary spermatocyte is _________
A. 46
B. 44
C. 23
D. 22
View Answer
Answer: Option B
Explanation:
An autosome is a chromosome that is not a sex chromosome. The DNA in autosomes is collectively known as atDNA or auDNA.
Question 9
Ovum receives the sperm in the region of _________
A. Animal pole
B. Equator
C. Vegetal pole
D. Pigmented area
View Answer
Answer: Option C
Explanation:
An embryo is divided into two hemispheres: the animal ole and vegetal pole within a blastula. The animal pole consists of small cells that divide rapidly in contrast with the vegetal pole below it. Ovum receives the sperm in the region of Vegetal pole.
Question 10
Spermatogonia are formed by _________
A. Meiosis
B. Mitosis
C. Amitosis
D. Meiosis II
View Answer
Answer: Option B
Explanation:
Mitosis is a type of cell division that results in two daughter cells each having same number and kind of chromosome as in the parent nucleus. Spermatogonia are formed by Mitosis.
Question 11
The lytic enzyme released y sperm is _________
A. Ligase
B. Acrosome
C. Androgamone
D. Hyaluronidase
View Answer
Answer: Option D
Explanation:
The lytic enzyme released y sperm is Hyaluronidase. It catalyzes the degradation of hyaluronic acid.
Question 12
Type of placenta found in human is called _________
A. Discoidal
B. Cotyledonary
C. Zonary
D. Diffuse
View Answer
Answer: Option A
Explanation:
Placenta found in human is called Discoidal. It is a placenta in which the chorionic villi are arranged in a circular plate.
Question 13
Which of the following organ is devoid of gland?
A. Vulva
B. Oviduct
C. Uterus
D. Vagina
View Answer
Answer: Option B
Explanation:
Oviduct is a simple ciliated tube, lined with tissues. It is devoid of a gland.
Question 14
Wolffian duct forms _________
A. Oviduct
B. Urethra
C. Epididymis
D. Ejaculatory duct
View Answer
Answer: Option C
Explanation:
Wolffian duct is the mesonephric embryonic duct that leads to the development of male gonads. Wolffian duct develops into Epididymis.