Unit 8 Vocabulary

What is a gene?

• A version of a chromosome

• A sequence of DNA that codes for a specific protein and trait

• A physical characteristic

• A type of allele

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

What is an allele?

• A sequence of DNA that codes for a specific protein

• A version of a gene

• A physical characteristic

• A type of chromosome

What is a phenotype?

• The genetic makeup of an individual

• The physical characteristic an individual expresses for a trait

• A version of a gene

• A type of chromosome

Tags

NGSS.HS-LS4-4

What is a genotype?

• The physical characteristic an individual expresses for a trait

• The combination of alleles an individual has for a specific trait

• A version of a gene

• A type of chromosome

Tags

NGSS.HS-LS1-1

What does it mean if an allele is dominant?

• It is only expressed when two copies are present

• It always shows when present and will mask a recessive allele

• It is a version of a gene

• It is a type of chromosome

What does it mean if an allele is recessive?

• It always shows when present

• It is only expressed when the dominant allele is absent and when there are two recessive alleles

• It is a version of a gene

• It is a type of chromosome

What does homozygous mean?

• When the two alleles in a pair are different

• When the two alleles in a pair are identical

• A version of a gene

• A type of chromosome

What does heterozygous mean?

• When the two alleles in a pair are identical

• When the two alleles in a pair are different

• A version of a gene

• A type of chromosome

What is a Punnett Square used for?

• To sequence DNA

• To predict the chances that offspring will inherit a particular trait

• To identify physical characteristics

• To determine the type of chromosome

Tags

NGSS.HS-LS3-1

• Homozygous dominant

• Homozygous recessive

• Heterozygous

• Purebred