Genes Key Termonology Flashcards
1
Q
Gamete
A
Sex cells
2
Q
Chromosome
A
Thread like structures of dna that carry genetic information in the form of genes
3
Q
Gene
A
Short lengths of dna found on chromosomes
Code for specific proteins
4
Q
Allele
A
Different versions of particular genes
5
Q
Dominant
A
Always expressed even if only one is present
6
Q
Rescessive
A
Only expressed if two copies are presnt
7
Q
Homozygous
A
Two alles are the same
8
Q
Heterozygous
A
Two alles are different
9
Q
Genotype
A
The combination of alleles that control each characteristic
10
Q
Phenotype
A
The observable characteristic of an organism such as eye colour
11
Q
Polygenetic
A
Characteristics that are controlled by more than one gene
12
Q
Gene mutation
A
Change in base sequence of dna
