Genetics Review

Define traits

• Two alleles that are passed from parent to offspring

• Physical characteristics controlled by genes

• An organism that is a hybrid

• Recessive genes

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

Genes are...

• Physical characteristics

• A hybrid organism

• A homozygous dominant cross

• Factors that control traits

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is a hybrid?

• An organism that has two different alleles

• An organism that has 2 X chromosomes

• An organism that has 2 dominant alleles

• An organism that has 2 recessive alleles

What is a purebred dominant?

• An organism that has two different alleles

• An organism that has 2 X chromosomes

• An organism that has 2 dominant alleles

• An organism that has 2 recessive alleles

What is a purebred recessive?

• An organism that has two different alleles

• An organism that has 2 X chromosomes

• An organism that has 2 dominant alleles

• An organism that has 2 recessive alleles

What do two capital letters designate?

• Two recessive genes

• One dominant and one recessive gene

• Two dominant genes

• One single recessive gene

What do two lowercase letters designate?

• Two recessive genes

• One dominant and one recessive gene

• Two dominant genes

• One single recessive gene

What does 1 lowercase and 1 capital letter designate?

• Two recessive genes

• One dominant and one recessive gene

• Two dominant genes

• One single recessive gene

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the term that is defined as the likelihood that a particular event will occur?

• Punnett square

• Codominance

• Phenotype

• Probability

Tags

NGSS.HS-LS3-3

NGSS.HS-LS4-3

What does a Punnett Square show?

• All possible outcomes of a genetic cross

• Only recessive genes in a genetic cross

• Only the dominant genes in genetic cross

• Neither the recessive genes or dominant genes in a genetic cross