Genetics Study Guide

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.

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NGSS.HS-LS3-2

Front

What does it mean for an organism to be heterozygous?

Back

An organism is heterozygous when it has two different alleles for a specific gene, one dominant and one recessive.

Front

What does it mean for an organism to be homozygous recessive?

Back

An organism is homozygous recessive when it has two identical recessive alleles for a specific gene.

Front

What is the probability of offspring having the same phenotype and genotype as a homozygous recessive parent when crossed with a heterozygous parent?

Back

50% chance.

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NGSS.HS-LS3-3

Front

What is artificial selection?

Back

Artificial selection is the process by which humans breed animals or plants for specific traits.

Front

What is the role of humans in artificial selection?

Back

Humans select which animals or plants to breed based on desired traits.

Front

What does it mean for a trait to be inherited?

Back

A trait is inherited when it is passed down from parents to offspring through genes.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What are alleles?

Back

Alleles are different forms of a gene that determine specific traits.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is the difference between dominant and recessive alleles?

Back

A dominant allele masks the effect of a recessive allele in a heterozygous condition.

Front

What are the possible genotypes for a guinea pig with rough fur?

Back

The possible genotypes are RR (homozygous dominant) or Rr (heterozygous).

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2