The presence of deleterious alleles in a heterozygous genotype in a population is called......

Industrial melanism is an example of

In the peppered moth $(Biston \text{ } betularia)$ in England, the dark-colored form became more prevalent than the light-colored form during the Industrial Revolution. This is an example of which of the following?

'Population tends to increase geometrically,while food supply increases arithmetically'. This concept was put forward by

In the experiment to isolate streptomycin-resistant mutants using the replica plating technique,which proves that such mutations do not arise as an adaptation,what is required to be used for the replica plating?

Gloger's rule is related to the: