genetic inheritance Flashcards
(11 cards)
1
Q
gamete
A
sex cell
2
Q
chromosome
A
- contained inside the nucleus
- long stands of DNA, made up of many genes
3
Q
gene
A
- small section of DNA on a chromosome
- codes for a particular sequence of amino acids to make a specific protein
4
Q
alleles
A
- different versions of the same gene
5
Q
dominant
A
- always expressed, even if one copy is present
6
Q
recessive
A
- only expressed if the individual has two copies and doesn’t have the dominant allele of that gene
7
Q
homozygous
A
- identical alleles for the same characteristic
8
Q
heterozygous
A
- different alleles for the same characteristic
9
Q
genotype
A
- the collection of alleles that determine characterisics
10
Q
penotypes
A
- physical expression of genotype
11
Q
what are most characteristics a result of?
A
multiple genes interacting
