Darwin's finches are a good example of:
1. industrial melanism
2. connecting link
3. adaptive radiation
4. convergent evolution
Given that the frequency of children homozygous for the recessive allele for cystic
fibrosis is about 0.0016. What is the frequency of heterozygotes in the population? [Cystic fibrosis is inherited as an autosomal recessive disorder].
1. 0.960
2. 0.077
3. 0.040
4. 0.923
Peripatus is a connecting link between:
1. Ctenophora and Plantyhelminthes
2. Mollusca and Echinodermata
3. Annelida and Arthropoda
4. Coelenterata and Poriphera
One of the important consequences of geographical isolation is:
1. no change in the isolated fauna
2. preventing speciation
3. speciation through reproductive isolation
4. random creation of new species
1. | Thorn of Bougainvillea and tendrils of Cucurbita – Analogous organs |
2. | Nictitating membrane and blind spot in the human eye – vestigial organs |
3. | Nephridia of the earthworm and Malpighian tubules of cockroach - Excretory organs |
4. | Wings of a honey bee and wings of crow - Homologous organs |
The finches of the Galapagos islands provide evidence in favour of:
1. special creation
2. evolution due to mutation
3. retrogressive evolution
4. biogeographical evolution
Which one of the following is not a living fossil?
1. King crab
2. Sphenodon
3. Archaeopteryx
4. Peripatus
The most recent and direct pre-historic ancestor is:
1. Cro-magnon
2. Neanderthal
3. Pre-neaderthal
4. None of these
Darwin’s finches represent:
1. Morphological variations
2. Geographical isolations
3. Climate variations
4. Reproductive isolation
Hardy-Weinberg equilibrium is known to be affected by gene flow, genetic drift, mutation, genetic recombination and:
1. evolution
2. limiting factors
3. saltation
4. natural selection