genetic terms CGP Flashcards
1
Q
what is a gene?
A
sequence of bases in DNA which codes for a protein
2
Q
what is an allele?
A
a version of the same gene
3
Q
what is different about different alleles?
A
the order of bases is slightly different
4
Q
what is the locus?
A
position on a gene where an allele is located
5
Q
what is the genotype?
A
the alleles an organism has
6
Q
what is the phenotype?
A
the expression of alleles in an organism
7
Q
what is the dominant allele?
A
allele which only needs one copy to be expressed
8
Q
what is the recessive allele?
A
allele which needs two copies to be expressed
9
Q
what are codominant alleles?
A
when neither allele is dominant over the other so both are expressed
10
Q
what is a carrier?
A
a person carrying an allele which is not expressed but can be passed on to offspring
HETEROZYGOUS
