Synsacrum of fowl consists about

• 29 vertebrae

• 3 vertebrae

• 16 vertebrae

• single vertebrae

Chromosome complement with 2n - 1 is called

• monosomy

• nullisomy

• trisomy

• tetrasomy

The embryo at 16 celled stage is known as

• morula

• gastrula

• blastula

• blastomere

Which of the following provides most evident proof of evolution?

• Fossils

• Morphology

• Embryo

• Vestigial organs

Animals undergoes inactive stage during winter, is known as

• aestivation

• hibernation

• adaptation

• acclimatization

In rabbit, head of epididymis present at the head of testis is called

• vas deferens

• cauda epididymis

• gubernaculum

• caput epididymis

Small fish get stuck near the bottom of a shark and derives its nutrition from it. This kind of association is called as

• antibiosis

• commensalism

• predation

• parasitism

Which of the following is not vestigial in man?

• Tail vertebrae

• Nails

• Nicitating membrane

• Vermiform appendix

the group of Anamniota includes

• reptiles and birds

• birds and mammals

• fishes an amphibians

• reptiles and mammals

Jumping genes in maize were discovered by

• Hugo de Vries

• Barbara McClintock

• T H Morgan

• Mendel