Lesson 2: Patterns of Inheritance Vocabulary & Lesson Practice

What is HOMOZYGOUS?

• AA or aa

• Aa

• Organism that has identical alleles for a trait

• Organism that has two different alleles for a trait

Which genotypes would result in a phenotype of the RECESSIVE trait? (check all that are correct)

• AA

• Aa

• aa

Which trait will always show up when the gene is present in the organisms’ DNA?

• Dominant allele

• Recessive allele

Tags

NGSS.HS-LS3-1

Alleles whose trait always shows up when the allele is present

• Dominant alleles

• Recessive alleles

• Phenotype

• Genotype

Tags

NGSS.HS-LS3-1

Which allele combination is correct for a heterozygous genotype?

• AA

• Aa

• aa

an allele whose trait always shows up in the organism when the allele is present

• phenotype

• dominant allele

• recessive allele

• genotype

A recessive allele is...

• the trait that will be hidden if there is only one copy

• the trait that will be visible if there is only one copy

• the trait that is always the most common in a population

• any version of a gene

Which of the genotypes is heterozygous/hybrid ?

• GG

• gg

• Gg

an organism's genetic makeup, or allele combinations

• phenotype

• allele

• inheritance

• genotype

Tags

NGSS.HS-LS3-2

Genes are ...

• That is hidden whenever the dominant allele is present

• Segment of DNA on chromosome that control a trait or characteristic

• A number of how an event occur

• An organism that has two different alleles for a trait

Tags

NGSS.HS-LS3-1