DNA sequences from randomly chosen individuals from the two populations are shown here – A1 ATAAGA A1 ACAAGA A1 ACATGA A2 TCATTT A2 TCATTG A2 TCATTT A)Describe relative levels of genetic variation (simply state low or high) among individuals in population A1. B)Describe relative levels of genetic variation (simply state low or high) among individuals in population A2. C)Describe relative levels of genetic variation (simply state low or high) between individuals in populations A1 and individuals in population A2.
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.
Your descendants have fortunately inherited your fascination with rodent genetics. Fifty thousand years after the original volcanic eruption, your descendants return to the island where the two populations are still separated. They repeat the same experiments that you carried out. Their data indicate there is no reproductive isolation between members of A1 and A2.
DNA sequences from randomly chosen individuals from the two populations are shown here –
A1 ATAAGA
A1 ACAAGA
A1 ACATGA
A2 TCATTT
A2 TCATTG
A2 TCATTT
A)Describe relative levels of
B)Describe relative levels of genetic variation (simply state low or high) among individuals in population A2.
C)Describe relative levels of genetic variation (simply state low or high) between individuals in populations A1 and individuals in population A2.
Genetic variation is how much the genotype of an organism differs from other organisms. The genotype has less differences amlng the individuals with close relatedness and vice versa.
I am redrawing the table so that I can assign numner to each individual of a population
| Individual number | population | genotype |
| 1 | A1 | ATAAGA |
|
2 |
A1 | ACAAGA |
| 3 | A1 | ACATGA |
| 1 | A2 | TCATTT |
| 2 | A2 |
TCATTG |
| 3 | A2 | TCATTT |
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