B11.3 Flashcards
1
Q
define genotype
A
the genetic make-up of an organism in terms of the alleles present
2
Q
define phenotype
A
the observable features of an organism
3
Q
define homozygous
A
having two identical alleles of a particular gene
4
Q
what is pure-breeding?
A
when two identical homozygous individuals breed together
5
Q
define heterozygous
A
having two different alleles of a particular gene
6
Q
what is not pure breeding?
A
breeding between heterozygous individuals
7
Q
define dominant
A
an allele that is expressed if it is present
8
Q
Define recessive
A
an allele that is only expressed when there is no dominant allele of the gene present
