Which of the following refers to correct example(s) of organisms that have evolved due to changes in environment brought about by anthropogenic action?
(a) | Darwin's Finches of Galapagos islands |
(b) | Herbicide-resistant weeds |
(c) | Drug-resistant eukaryotes |
(d) | Man-created breeds of domesticated animals like dogs |
1. (a) and (c)
2. (b), (c) and (d)
3. only (d)
4. only (a)
From his experiments, S.L. Miller produced amino acids by mixing which of the following in a closed flask:
1.
2.
3.
4.
Flippers of Penguins and Dolphins are examples of:
1. | Convergent evolution | 2. | Industrial melanism |
3. | Natural selection | 4. | Adaptive radiation |
The sum total of all the alleles in a population constitute the
(1) chromosome complement
(2) karyotype
(3) gene pool
(4) allele group
Good examples of recapitulation theory is
(1) The embryonic membrane of reptiles
(2) Tadpole larva of frog
(3) Placenta of mammals
(4) Canine teeth of the dog
Embryological support for evolution was proposed by:
1. | Ernst Heckel | 2. | Karl Ernst von Baer |
3. | Charles Darwin | 4. | Alfred Wallace |
After about how many years of the formation of the earth, life appeared on this planet?
1. 500 billion years
2. 50 million years
3. 500 million years
4. 50 billion years
The phenomenon of the evolution of different species in a given geographical area starting from a point and spreading to other habitats is called:
1. | Saltation | 2. | Co-evolution |
3. | Natural selection | 4. | Adaptive radiation |
A Hominid fossil discovered in Java in 1891, now extinct, having a cranial capacity of about 900 cc was:
1. | Homo erectus | 2. | Neanderthal man |
3. | Homo sapiens | 4. | Australopithecus |
Which of the following statements is correct about the origin and evolution of men?
1. | Agriculture came around 50,000 years back. |
2. | The Dryopithecus and Ramapithecus primates existing 15 million years ago, walked like men. |
3. | Homo habilis probably ate meat. |
4. | Neanderthal men lived in Asia between 100000 and 40000 years back. |