A population of tree frogs living in the Amazon rainforest have two skin color phenotypes controlled by the same gene. Homozygous dominant and heterozygous individuals have green skin while homozygous recessive individuals have blue skin. In the first generation, analysis of the alleles for this gene shows that 70 alleles of this gene are green, and 130 alleles of this gene are blue in the population. In the second generation, 90 alleles are green and 110 alleles are blue. Finally, in the third generation, 120 alleles are green and only 80 are blue. Based on this data, which description best describes this population of tree frogs? There are no individuals migrating into or out of the population. The frogs are randomly mating with each other. The population size of frogs is very large. The green skin color is being selected over blue skin color.
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.
A population of tree frogs living in the Amazon rainforest have two skin color
-
There are no individuals migrating into or out of the population.
-
The frogs are randomly mating with each other.
-
The
population size of frogs is very large. -
The green skin color is being selected over blue skin color.
Trending now
This is a popular solution!
Step by step
Solved in 2 steps