You are studying sea turtle shell color variation in one species of sea turtle. Which of the following statements does NOT explain how one of the three conditions for natural selection is met for sea turtle shell color? O A Shell color is a heritable trait. O B Neither brown nor yellow shelled turtles can retract their heads into their shells. O C Sharks, the main predator of sea turtles, can more easily see brown sea turtles than yellow-green sea turtles. O D The finely serrated jaws of the yellow-green sea turtles allow them to access sea grasses and algae more easily than brown sea turtles. E Both yellow-green and brown sea turtles live in the same area of the Atlantic Ocean.
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.
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