7.3 Inheritance Flashcards
1
Q
allele
A
different forms of a gene
2
Q
homozygous
A
two copies of a gene that are the same allele
e.g. HH or hh
3
Q
heterozygous
A
two copies of a gene that are different alleles
e.g. Hh
4
Q
locus
A
the fixed position of a gene
5
Q
haploid
A
one copy of a gene (gametes)
6
Q
what is meant by a sex-linked gene?
A
a gene located on one of the sex chromosomes
7
Q
diploid
A
2 copies of a gene
full chromosome number
8
Q
genotype
A
the genetic constitution of an organism
the genes/alleles an organism has
9
Q
phenotype
A
the expression of the genetic constitution and its interactions with the environment (actual charachteristics)
10
Q
dominant allele
A
are expressed in homozygous and heterozygous state
11
Q
recessive allele
A
only expressed in homozygous state
