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

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 

Which one of the following in birds indicates their reptilian ancestry?