MECHANISM OF EVOLUTION Flashcards
(7 cards)
1
Q
Who had talked of inheritable factors?
A
Mendel
2
Q
In the 1st decade of ________ century , ________ based on his work on ________ brought forth the idea of mutations
A
20th, Hugo deVries, evening primrose
3
Q
What is mutation?
A
Large difference arising suddenly in a population
4
Q
Hugo deVries believed that it is the mutation which causes evolution and not ______________
A
the minor variations(heritable) that Darwin talked about
5
Q
Mutations are ________________ while Darwinian variations are ____________
A
random, directionless; small , directional
6
Q
Evolution for Darwin was immediate/gradual
A
Gradual
7
Q
deVries believed that mutation caused speciation and hence called it ______________
A
saltation(single step large mutation)
