genetics, punnett squares, heredity

Front

What is the probability of the offspring showing the recessive trait in a Punnett square if the answer is 25%?

Back

25% is the probability of the offspring showing the recessive trait when both parents are heterozygous for a trait.

Front

What is an organism’s genetic makeup called?

Back

Genotype.

Front

What does genotype refer to?

Back

The possible combination of alleles in a gene.

Tags

NGSS.HS-LS3-1

Front

In a Punnett square, what does each box represent?

Back

Each box represents an offspring.

Front

What is a phenotype?

Back

The expression of a trait; physical appearance.

Front

What is the difference between genotype and phenotype?

Back

Genotype is the genetic makeup, while phenotype is the physical expression of that genetic makeup.

Tags

NGSS.HS-LS3-1

Front

What does homozygous mean?

Back

An organism that has the same alleles for a trait (e.g., TT or tt).

Front

What does heterozygous mean?

Back

An organism that has different alleles for a trait (e.g., Tt).

Front

What is a dominant allele?

Back

An allele that expresses its trait even when only one copy is present.

Front

What is a recessive allele?

Back

An allele that only expresses its trait when two copies are present.