Genetics/Punnett Square Flashcard Review

Front

What is a genotype?

Back

The genetic makeup of an organism, represented by letters (e.g., BB, Bb, bb).

Tags

NGSS.HS-LS3-1

Front

What does heterozygous mean?

Back

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

Front

What does homozygous mean?

Back

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

Front

Define phenotype.

Back

The physical traits or characteristics of an organism that can be observed.

Front

What is the difference between genotype and phenotype?

Back

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

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

If a heterozygous tall plant (Tt) is crossed with a homozygous recessive short plant (tt), what is the probability of getting a tall plant?

Back

50%.

Tags

NGSS.HS-LS3-3

Front

What is the probability of offspring having a specific trait?

Back

It is determined by the combination of alleles inherited from the parents.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

Front

What is an allele?

Back

An alternative form of a gene that can exist at a specific locus on a chromosome.

Front

What does it mean if an organism is homozygous dominant?

Back

It has two dominant alleles for a trait (e.g., BB).