Natural Selection

Industrial melanism as observed in peppered moths proves that:

1.	The true black melanic forms arise from a recurring natural selection
2.	The melanic form of the moth has no selective advantage over the lighter form in an industrial area
3.	The lighter-form moth has no selective advantage either in polluted industrial areas or non-polluted areas
4.	Melanism is a pollution-generated feature

In the case of peppered moth (Biston betularia), the black-coloured form became dominant over the light-coloured form in England during the industrial revolution. This is an example of:

1.	natural selection, whereby the darker forms were selected
2.	appearance of the darker coloured individuals due to very poor sunlight
3.	protective mimicry
4.	inheritance of darker colour character acquired due to the darker environment

Industrial melanism is an example of?

1. Neo Darwinism

2. Natural Selection

3. Mutation

4. Neo Lamarckism

Artificial selection to obtain cows yielding higher milk output represents:

1.	Directional, as it pushes the mean of the character in one direction
2.	Disruptive, as it splits the population into two, one yielding higher output and the other lower output
3.	Stabilizing followed by disruptive, as it stabilizes the population to produce higher-yielding cows
4.	Stabilizing selection, as it stabilizes this character in the population

In a species, the weight of a newborn ranges from 2 to 5 kg. 97% of the newborns with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 kg to 5 kg die. Which type of selection process is taking place?
1. Cyclical selection
2. Directional selection
3. Stabilizing selection
4. Disruptive selection

Natural selection where more individuals acquire specific character value other than the mean character value, leads to :
1. Random change
2. Stabilising change
3. Directional change
4. Disruptive change