Genetics Review

Front

What is a heterozygous genotype?

Back

A heterozygous genotype consists of two different alleles for a particular gene, such as Rr.

Front

What is a recessive allele?

Back

A recessive allele is represented by a lowercase letter and is masked by the presence of a dominant allele.

Tags

NGSS.HS-LS3-1

Front

Define heredity.

Back

Heredity is the passing of traits from parents to their offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is a homozygous genotype?

Back

A homozygous genotype consists of two identical alleles for a particular gene, such as EE or tt.

Front

What is a phenotype?

Back

A phenotype is the physical appearance or observable characteristics of an organism.

Front

What is a dominant allele?

Back

A dominant allele is an allele that expresses its trait even in the presence of a recessive allele.

Tags

NGSS.HS-LS3-1

Front

What is the difference between genotype and phenotype?

Back

Genotype refers to the genetic makeup of an organism, while phenotype refers to the observable traits.

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NGSS.HS-LS4-4

Front

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

Back

An organism is homozygous dominant if it has two dominant alleles for a trait, such as AA.

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NGSS.HS-LS3-2

Front

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

Back

An organism is homozygous recessive if it has two recessive alleles for a trait, such as aa.

Front

What is the law of segregation?

Back

The law of segregation states that during the formation of gametes, the two alleles for a trait separate from each other.

Tags

NGSS.HS-LS3-2