Evolution

Question 1

Who proposed theory of Chemical Evolution?
What is it?
Who proved it experimentally

Answer 1

Oparin and Haldane
It states that life originated from non-living oraganic molecules.
Urey Miller proved it experimentally

Question 2

What are the evidences for Evolution

Answer 2

•Paleontological(fossils)
•Embryological(gill slits present in basic stages of all organisms)
•Morphological and Anatomical (similarities between different types of species)

Question 3

Differ Homologous and Analogous

Answer 3

•Homologous
Same structure but different functions
Divergent Evolution
Forelimb of whale,bats and mammals

•Analogous
Different functions but same function
Convergent Evolution
Eye of octopus and man

Question 4

What is Adaptive Radiation

Answer 4

The process of evolution of different species of a geographical area, from a point and radiating to other geographical areas
Eg: Darwin’s Finches
Australian Marsupial 🦘

Question 5

Hardy Weinberg equilibrium

Answer 5

Allele frequency is stable from generation to generation and constant. Genetic pool is also a constant. This is known as genetic equilibrium. Sum of total allele frequency is 1

Question 6

Factors affecting Hardy Weinberg equilibrium

Answer 6

Gene migration
Genetic drift
Mutation
Genetic recombination
Natural selection

Question 7

Evolution of Man

Answer 7

Dryopithecus
Ramapithecus
Australopithecus
Homo habilis
Homo Erectus
Homo Neanderthal
Homo Sapiens