1a-Farmers often use pesticides to kill insects to protect their crops. However, insect populations will often develop resistance to any pesticides that are used on them within a few generations. What is the selective pressure in such a scenario? O a. Pesticide treatment O b. The crops Oc. Pesticide resistance Od. The insects Oe. Mutation
Genetic Variation
Genetic variation refers to the variation in the genome sequences between individual organisms of a species. Individual differences or population differences can both be referred to as genetic variations. It is primarily caused by mutation, but other factors such as genetic drift and sexual reproduction also play a major role.
Quantitative Genetics
Quantitative genetics is the part of genetics that deals with the continuous trait, where the expression of various genes influences the phenotypes. Thus genes are expressed together to produce a trait with continuous variability. This is unlike the classical traits or qualitative traits, where each trait is controlled by the expression of a single or very few genes to produce a discontinuous variation.
1a-Farmers often use pesticides to kill insects to protect their crops. However, insect populations will often develop resistance to any pesticides that are used on them within a few generations. What is the selective pressure in such a scenario?
O a. Pesticide treatment
O b. The crops
Oc. Pesticide resistance
Od. The insects
Oe. Mutation
1b-What is/are the element(s) required for a population to change due to natural selection? Select all options that are correct below.
a. Variability in a population
b. Genetic drift
c. Inheritance of traits
d. Differential survival
e. Evolution
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