Genetics

Front

What is the definition of a dominant allele?

Back

A dominant allele is an allele that expresses its phenotype even when only one copy is present in a heterozygous individual.

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What is a recessive allele?

Back

A recessive allele is an allele that only expresses its phenotype when two copies are present in a homozygous individual.

Front

What is a genotype?

Back

A genotype is the genetic makeup of an individual, represented by the alleles they possess.

Tags

NGSS.HS-LS3-2

Front

What is a phenotype?

Back

A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.

Tags

NGSS.HS-LS4-3

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the genotypes of offspring from a genetic cross.

Tags

NGSS.HS-LS3-2

Front

What does it mean for alleles to be codominant?

Back

Codominance occurs when both alleles in a heterozygous individual contribute equally and visibly to the phenotype.

Front

What is the principle of segregation?

Back

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

Tags

NGSS.HS-LS3-2

Front

What is multiple alleles?

Back

Multiple alleles refer to the presence of more than two alleles for a genetic trait within a population.

Front

What is a carrier in genetics?

Back

A carrier is an individual who has one copy of a recessive allele that does not manifest in their phenotype.

Front

What is a pedigree chart?

Back

A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism from one generation to the next.

Tags

NGSS.HS-LS3-1