Lesson 2 Flashcards Preview

Life Science > Lesson 2 > Flashcards

Flashcards in Lesson 2 Deck (11):
1

Probability

A number that describes how likely it is that an event would occur

2

Punnet square

A chart that shows all the possible ways alleles can combine in a genetic cross

3

Phenotype

How a trait is looks or how it is expressed

4

Genotype

An organisms alleles

5

Homozygous

An organism that has 2 IDENTICAL alleles for a trait

6

Heterozygous

An organism that has 2 DIFFERENT alleles for a trait

7

Incomplete dominance

When one allele is only partially dominant

8

Codominance

When both alleles for a gene are expressed equally

9

Multiple Alleles

When three or more possible alleles determine the trait

10

Polygenic inheritance

When more than one gene affects a trait

11

Meiosis

The process by which the number of chromosomes is reduced by half as sex cells.