Key defenitions Flashcards
(7 cards)
1
Q
What is dominant?
A
A dominant allele is always expressed, even if only one copy is present. Represented by a capital letter
2
Q
What is meant by Homozygous recessive?
A
A recessive allele is only expressed if two copies are present (there is no dominant allele present)
3
Q
WHat is homozygous?
A
If 2 alleles in the gene are the same
4
Q
What is heterozygous?
A
When someone has 2 identical alleles of a gene
5
Q
What is genotype?
A
The combination of alleles that control each characteristic
6
Q
What is phenotype?
A
The observable characteristics of an organism (either seen or found through testing)
7
Q
What is an allele?
A
A version of a gene. Alleles cause differences in inhertied characteristics
