Explanation:
Cardiolipin is a glycerophospholipid. It is seen at high concentration in the inner membrane of
mitochondria. Its concentration is very low in plasma membrane. Ergosterols are found widely in the
plasma membrane of fungi. Stigmasterol is found in plant cell membrane.
Question: 4
Haemocoel is a characteristic feature of phylum _____________
A. Porifera
B. Cnidaria
C. Mammalia
D. Arthropoda
E. Platyhelminthes
Correct Answer: D. Arthropoda
Explanation:
Haemocoel is a cavity in the organs of arthropods and molluscs through which blood circulates. It
develops from part of blood system.
Question: 5
Maturation of sperm takes place in which part of male reproductive system?
A. Prostate gland
B. Seminal vesicles
C. Vas deferens
D. Epididymis
E. Scrotal sac
Correct Answer: D. Epididymis
Explanation:
Epididymis is a coiled tube attached to the backside of testis. It is present within the scrotum. Sperms
take longer time to pass through this tube. The maturation of spermatozoa takes place here and later
moves to vas deferens.
Question: 6
The type of mutation that codes for a stop codon is called
A. Misscense mutation
B. Nonsense mutation
C. Silent mutation
D. Both A and C
E. All of the above
Correct Answer: B. Nonsense mutation