Understanding inheritance

Front

What is inheritance?

Back

Inheritance is the process by which genetic information is passed from parents to their offspring.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is a genotype?

Back

A genotype is the genetic makeup of an organism, represented by the alleles it possesses (e.g., GG, Gg, gg).

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is a phenotype?

Back

A phenotype is how a trait appears or is expressed in an organism, such as eye color or height.

Front

What are alleles?

Back

Alleles are different forms of a gene that can exist at a specific locus on a chromosome.

Front

What is a Punnett Square?

Back

A Punnett Square is a diagram used to predict the possible genotypes and phenotypes of offspring from a genetic cross.

Front

What is codominance?

Back

Codominance is a genetic scenario where both alleles in a heterozygote are fully expressed, resulting in a phenotype that is neither dominant nor recessive.

Front

Can a visible trait skip a generation?

Back

Yes, a visible trait can skip a generation due to the inheritance of recessive alleles.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is a pedigree?

Back

A pedigree is a family tree that shows the occurrence of genetic traits across generations.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What is the difference between dominant and recessive alleles?

Back

Dominant alleles mask the effect of recessive alleles in a heterozygous genotype.

Front

What is a homozygous genotype?

Back

A homozygous genotype has two identical alleles for a particular gene (e.g., GG or gg).