MA Genetics Vocabulary

A trait is...

• a pair of alleles that are different

• a gene

• a quality or aspect about a person

• a pair of alleles that are the same

Tags

NGSS.HS-LS3-1

Heredity is...

• traits that are passed down from parents to offspring

• an organism that has two different alleles for a trait

• a pair of alleles that are the same

• different variations of a gene

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

An allele is...

• a quality/aspect about a person

• traits that are passed down from parents to offspring

• physical appearance (what you see)

• different variations of a gene (represented by letters)

Tags

NGSS.HS-LS3-2

What is homozygous?

• a pair of alleles that are different

• a pair of alleles that are the same

• traits that are passed down from parents to offspring

• a quality or aspect about a person

What is heterozygous?

• a pair of alleles that are different

• a pair of alleles that are the same

• traits that are passed down from parents to offspring

• a quality or aspect about a person

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

What is a dominant allele?

• an allele that CAN be seen when paired with a recessive allele

• an allele that CANNOT be seen when paired with a recessive allele

• an allele that CANNOT be seen when paired with a dominant allele

• an allele that can never be seen

How do we represent a dominant allele?

• a little/lowercase letter

• a number

• a big/capital letter

• an exclamation point

What is a recessive allele?

• an allele that CAN be seen when paired with a recessive allele

• an allele that CANNOT be seen when paired with a recessive allele

• an allele that CANNOT be seen when paired with a dominant allele

• an allele that can never be seen

How do we represent a recessive allele?

• a little/lowercase letter

• a number

• a big/capital letter

• an exclamation point

Match the following combinations of alleles:

• Dd

• Heterozygous

• dd

• Homozygous dominant

• DD

• Homozygous recessive