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Which one of the following will have the least impact on allele frequencies in small populations? (1) Inbreeding (2) Random mating (3) Genetic drift (4) Outbreeding   Evolutionary Forces in […]

Which one of the following does NOT contribute to micro-evolutionary change? (1) Mutation (2) Random mating (3) Genetic drift (4) Natural selection   Microevolution refers to small-scale changes in allele […]

Micro-evolution is the term used for changes in allele frequencies that occur over time. A) Within a population at species level B) within a community at genus level C) due […]

The inbreeding coefficient of offspring on marriage between brother and sister siblings will be (1) 0.5 (2) 0.05 (3) 0.25 (4) 0.75   What Is the Inbreeding Coefficient? The inbreeding […]

Small amount of lethal mutation always tend to remain in population is due to (1) Mutation-Selection balance (2) Frequency dependent selection (3) Positive selection (4) Negative selection   Why Do […]

  Which of the following DO NOT bring variation in population? (1) Random drift (2) Random matting (3) Mutation (4) Natural Selection   Variation in a population is essential for […]

Transovarial transmission (TOT) is a widespread and efficient process through which pathogens of plants can be passed between generations of arthropod vectors. During evolution host plant will become (1) Resistance […]

In a population a single gene locus has two alleles ’A’ and ‘a’ with allele frequency of ‘a’= 0.3. If genotype ‘Aa’ is lethal and only individual with genotype ‘AA’ […]

When an allele changes frequency not because it itself is under natural selection, but because it is near another gene that is undergoing a selective sweep and that is on […]

The phenomenon of the non-random association of alleles at different loci in a given population, where the frequency of association of their different alleles is higher or lower than what […]