Lesson 2 Flashcards
1
Q
Probability
A
A number that describes how likely it is that an event would occur
2
Q
Punnet square
A
A chart that shows all the possible ways alleles can combine in a genetic cross
3
Q
Phenotype
A
How a trait is looks or how it is expressed
4
Q
Genotype
A
An organisms alleles
5
Q
Homozygous
A
An organism that has 2 IDENTICAL alleles for a trait
6
Q
Heterozygous
A
An organism that has 2 DIFFERENT alleles for a trait
7
Q
Incomplete dominance
A
When one allele is only partially dominant
8
Q
Codominance
A
When both alleles for a gene are expressed equally
9
Q
Multiple Alleles
A
When three or more possible alleles determine the trait
10
Q
Polygenic inheritance
A
When more than one gene affects a trait
11
Q
Meiosis
A
The process by which the number of chromosomes is reduced by half as sex cells.
