Significance of meiosis during gametogenesis lies in the fact that it:
A.Keeps the number of chromosomes constant for each species
B.Helps to form new genetical combinations
C.Is responsible for both of these
D.Is respobsible for none of these
Category: Sexual Reproduction Physiology Mcqs
About which of these number of oocytes are shed by a female frog in one copulation:
A.250
B.500
C.750
D.1000
Copulation in frogs occurs:
A.From late night to end of dawn
B.From evening to mid night
C.From dawn to mid day
D.From mid day to evening
Copulation in rabbits is termed:
A.Amplexus
B.Coitus
C.Oviposition
D.None of these
Semen in rabbit reaches from vagina to upper fallopian tube by:
A.Peristalisis caused by ejaculation of semen into vagina
B.Suction pressure exerted by upper portions of fallopian tubes
C.Internal suction by body cavity wall
D.None of these
Spermlysin in rabbits digests the cells of:
A.Corona radiata
B.Zona radiata
C.Zone pellucida
D.None of these
Which of the sperm fertilizes the ovum in rabbits:
A.One that is ahead of all the sperms
B.One that is longest of all
C.One that is without acrosome
D.None of these
The spawn of frogs always is seen on the surface of pond because:
A.Jelly is bouyant and keeps them on surface to provide them with proper heat and facilitate heat loss
B.They should remain protected from enemies in water
C.They should flow dry places for development
D.None of these reasons
Which of these enzymes digest cells of corona radiata in rabbits:
A.Spermlysin
B.Hyaluronidase
C.Amylase
D.None of these
Which of these enzymes helps in fertilization in case of frogs:
A.Spermin
B.Sperm lysine
C.Hyaluronidase
D.None of these
