Variation and inheritance Flashcards
1
Q
Two factors that can affect a characteristic that shows continuous variation
A
Genes, enviroment
2
Q
What is meant by the term true breeding
A
When a particular trait is past on to ALL offspring. Parents have homozygous genotypes. Meaning all offspring will have same phenotype
3
Q
Variations controlled by polygenic inheritance
A
Skin colour , hair, intelligence
4
Q
What is polygenic
A
When a large amount of genes determine the characteristic
5
Q
Example of discrete variation
A
Left or right handed
6
Q
Example of continuous variation
A
Height, weight
7
Q
What is variation
A
Genetic difference within same species
