For normal fertility, _______ % sperm shape and size, ______ % vigorous motility
60%, 40%
40%, 60%
50%, 50%
70%, 30%
Related Questions
For how long can sperm survive in the female reproductive tract, potentially leading to fertilization?
Up to 24 hours
Up to 2 days
Up to 5 days
Up to 7 days
Fertilization in humans is practically possible only if:
The sperms are transported into vagina just after the release of ovum in fallopian tube
The ovum and sperms are transported simultaneously to ampullary – isthmic junction of the fallopian tube
The ovum and sperms are transported simultaneously to ampullary – isthmic junction of the cervix
The sperms are transported into cervix within 48 hrs. of release of ovum in uterus
Which part of the sperm assist first mitotic division?
Acrosome
Neck
Middle part
Tail part
Second meiotic division in ovum leads to the formation of
A mature ovum and a second polar body
Two secondary oocytes
A primary oocyte and a polar body
Two zygotes
Second meiotic division in ova takes place
After ovulation
After spermatogenesis
After fusion of sperm and ova
After sperm reaches to the oviduct
Fertilization site ______
Ampullary – isthamic junction
Fallopian tube
Uterus
Vagina
Which structure surrounding the mammalian oocyte is responsible for species-specific sperm binding?
Corona radiata
Vitelline envelope
Zona pellucida
Perivitelline space
What structure releases enzymes to help the sperm penetrate the ovum?
Nucleus
Mitochondria
Acrosome
Flagellum
Implantation of the blastocyst typically occurs in the:
Myometrium
Perimetrium
Endometrium
Cervix
Fertilization in humans is practically possible only if:
a viable ovum and a viable sperm are present.
the ovum and sperm are of the same blood group.
the ovum and sperm are of the same genotype.
the sperm survives for more than 5 days in the female reproductive tract.
