Which of the following provides most evident proof of evolution?
Fossils
Morphology
Embryo
Vestigial organs
In rabbit, head of epididymis present at the head of testis is called
vas deferens
cauda epididymis
gubernaculum
caput epididymis
Animals undergoes inactive stage during winter, is known as
aestivation
hibernation
adaptation
acclimatization
Which of the following is not vestigial in man?
Tail vertebrae
Nails
Nicitating membrane
Vermiform appendix
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
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
B.
Barbara McClintock
Barbara McClintock discovered 'Jumping genes' or 'movable genetic elements' in maize. These can move from one location to another on the chromosome.
R W Hedges and A E Jacob (1974) introduced the term 'transposon' to jumping genes.
Hugo de Vries introduced the term 'mutation'.
T H Morgan proposed the 'gene theory' and crossing over.
Gregor Johann Mendel (1822- 1884) is known as the 'Father of Genetics'. It leads to the formulation of laws of inheritance which was carried out by Mendel.