Unit 4 Genetics: Heredity Review

How is a gene related to an allele?

• An allele is the location of a gene on a chromosome

• An allele is one possible form of a gene

• A gene is used to produce an allele in the cell

• A gene is a small segment of an allele

Tags

NGSS.HS-LS3-1

What is the relationship between females and Duchenne Muscular Dystrophy?

• Females with DMD have two recessive X^h alleles.

• Affected females inherit DMD from their mothers.

• Females can only be carriers for the DMD allele.

• All females are unaffected by DMD

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following genotypes is heterozygous?

• Bb
• BB
• bb
• B

Tags

NGSS.HS-LS3-1

Which of the following is homozygous recessive?

• Tt
• tt
• TT
• T

Tags

NGSS.HS-LS3-1

An organism’s physical appearance or visible traits or “What it looks like”

• DNA

• Phenotype

• Genotype

• Mutation

Tags

NGSS.HS-LS4-4

An organism’s genetic makeup

• Homozygous
• Mutation
• Allele
• Genotype

Aa, DD, bB, yy are all examples of

• genotypes
• phenotypes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which of the following is a phenotype?

• Aa
• red hair
• heterozygous
• DNA

Tags

NGSS.MS-LS4-4

This trait is hidden whenever the dominant allele is present

• dominant allele
• codominance
• recessive allele
• Punnett Square

A chart that shows all the possible combinations of alleles that can result from a genetic cross

• dominant allele
• codominance
• probability
• Punnett Square