Punnett Squares

Front

What does each box in a Punnett square represent?

Back

Each box represents a 25% probability of an offspring's genotype.

Tags

NGSS.HS-LS3-3

Front

What is the percentage of dominant offspring when a heterozygous parent mates with a homozygous recessive parent?

Back

50% of the offspring will be dominant.

Tags

NGSS.HS-LS3-1

Front

Which genotype is homozygous dominant?

Back

AA is homozygous dominant.

Front

In a Punnett square, if T = tall and t = short, what genotype is represented by tt?

Back

tt represents a short plant.

Front

In a flowering plant species, if red flower color (R) is dominant over white flower color (r), what are the possible genotypes for a red-flowering plant?

Back

The possible genotypes are RR or Rr.

Front

What is a Punnett square used for?

Back

A Punnett square is used to predict the genotypes of offspring from parental genotypes.

Front

Define genotype.

Back

Genotype is the genetic makeup of an organism, represented by alleles.

Front

Define phenotype.

Back

Phenotype is the observable physical characteristics of an organism.

Tags

NGSS.HS-LS3-2

Front

What is the difference between homozygous and heterozygous?

Back

Homozygous means having two identical alleles for a trait, while heterozygous means having two different alleles.

Front

If a plant has the genotype Tt, what is its phenotype?

Back

The phenotype is tall, since T (tall) is dominant.

Tags

NGSS.HS-LS3-1