In a population, a gene has two alleles 'A' and 'a'. The frequency of allele 'A' is 0.4. What will be the frequency of allele 'a'?
0.4
0.6
0.48
0.16
0.16
B.
0.6
For any alleles A + a = 1
0.4 + a = 1
a = 1 - 0.4 = 0.6
Evolution of different species in a given geographical area, starting from a point and spreading to other geographical areas is known as
Geographic isolation
Migration
Parallel evolution
Natural selection
Natural selection
Which of these are examples of evolution by anthropogenic action?
(i) Adaptive radiation of marsupials of Australia.
(ii) Appearance of antibiotic resistant microbes.
(iii) Evolution in finches Galapagos island.
(iv) Appearance of dark winged moth in England during post industrialization period.
(v) Convergent evolution of placental mammals in Australia.
(i) and (iii) only
(v) only
(ii) only
(ii) and (iv) only
(ii) and (iv) only
Match the hominids with their correct brain size :
| A. Homo habilis | i. 900 cc |
| B. Homo neanderthalensis | ii. 1350 cc |
| C. Homo erectus | iii. 650 - 800 cc |
| D. Homo sapiens | iv. 1400 cc |
Select the correct option
A - iii; B - ii; C - i; D - iv
A - iii; B - iv; C - i; D - ii
A - iv; B - iii; C - i; D - ii
A - iii; B - i; C - iv; D - ii
Identify 'a' and 'b' in the figure given below representing proportionate number of major vertebrate taxa.
