Genetic Crosses Flashcards
1
Q
Allele
A
Different forms of the same gene
2
Q
Locus
A
The position of a gene on a chromosome
3
Q
Homozygous
A
Identical alleles
4
Q
Heterozygous
A
Different alleles
5
Q
Dominant allele
A
Allele that are expressed in the heterozygous condition
6
Q
Recessive allele
A
Allele that is not expressed due to being mast by the dominant allele
7
Q
Genotype
A
The genetic make up of an organism
8
Q
Phenotype
A
The physical expression of the genotype
9
Q
Genotype plus environment equals?
A
Phenotype
10
Q
Progeny
A
The children of any cross. Also termed off-spring
11
Q
Law of segregation
A
Traits are governed by pairs of alleles that separate at gamete formation
12
Q
Law of assortment
A
Either member of a pair of alleles can combine with either member of another pair
13
Q
Fertilisation
A
The union of two gametes to form a single cell called a zygote
