Alleles3 Flashcards
How can a Mutation change allele frequency?
Some mutations are lethal
Some mutations are neutral
Some mutations may improve an individual’s ability to survive and reproduce
What changes allele frequency?
Mutation
Recombination
Lateral gene transfer
What is Recombination?
During Meiosis, chromosome mix causing millions of gene combinations crossing over during meiosis can also result in genetic variation during recombination
What is Lateral Gene Transfer?
The passing of genes from in individual to another and NOT through sexual reproduction
What does the number of phenotypes produced for a trait depend on?
Depends on how many genes control the trait
Single-Gene traits are controlled by?
Controlled by ONE gene
Polygenic traits are controlled by?
2 or more genes
Ex:Height
A bell shaped curve is what?
Is normal in an average of a particular trait in polygenic traits