List of top Biology Questions

Regeneration of liver is
Which of the following statements are correct? (i) venom of cobra is neurotoxic (ii) venom of sea snake is neurotoxic (iii) venom of viper is haemotoxic
In housefly pseudotracheae is found in
3-segmented club shaped maxillary palp is present in
Mosquito receives air through
The earliest man evolved around
Flying Phalanger and Flying squirrel are examples of
Common ancestor of humans and apes was
The earliest man-like primate was
Tuang Baby or African Ape-Man belonged to
Change in allele number and frequency in gene pool due to small size of population is
Selection favouring one extreme of a trait is called
Persistence of heterozygote in the population due to its superiority is called
Speciation that occurs at the ends of a large sized population is
Replica plating experiment to demonstrate occurrence of preadaptive mutations was performed by
Blastocoel is produced in human blastocyst by secretion of
Outer extra-embryonic membrane which also forms villi is
In ovum meiosis II is completed at the time of
Spermiation is
Head of human sperm is
Scrotum is absent in
Fructose required for activity of sperms is secreted by
Ovarian follicles occur inside
At the end of proliferative phase the thickness of endemetrium reaches
Leaf abscission is caused by