Choose the answer below that is true of gene flow. O gene flow is likely to alter allele frequencies O all of these gene flow may introduce new alleles into a population O none of these gene flow makes populations more similar
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.
BASIC INFORMATION
GENE FLOW
- We also know it by term gene migration.
- In this case the genetic material is introduced from one species population to another one.
VERTICAL GENE TRANSFER
This is the case in which through migration gene flow takes place between the two population belonging to same species. Example; transfer of gene from parent to offsprings etc.
HORIZONTAL GENE TRANSFER
Here gene flow is between two different species. It also has another name that is LATERAL GENE TRANSFER. Example; transfer of gene from virus to humans etc.
- This can be prevented by separating the population with physical barriers, reproductive barriers.
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