genetics

Front

What is genetics?

Back

The study of heredity and the variation of inherited characteristics.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

What are alleles?

Back

Different forms of a gene that can exist at a specific locus on a chromosome.

Tags

NGSS.HS-LS3-2

Front

What does homozygous mean?

Back

Having two identical alleles for a particular gene (e.g., BB or bb).

Front

What does heterozygous mean?

Back

Having two different alleles for a particular gene (e.g., Bb).

Front

What is a Punnett square?

Back

A diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles.

Front

What is a dominant allele?

Back

An allele that expresses its trait even when only one copy is present (represented by a capital letter).

Front

What is a recessive allele?

Back

An allele that only expresses its trait when two copies are present (represented by a lowercase letter).

Front

What is heredity?

Back

The passing down of traits from parents to children.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Front

If a horse with WW is crossed with a horse with ww, what fraction of the offspring will have white hair?

Back

All (100%) of the offspring will have white hair.

Tags

NGSS.HS-LS3-1

Front

What is the genotype of an organism?

Back

The genetic makeup of an organism, represented by the alleles it possesses.

Tags

NGSS.HS-LS3-2