genetics, punnett squares, heredity

Front

What is a recessive allele?

Back

A recessive allele is represented by a lowercase letter and is only expressed when two copies are present.

Front

How is a dominant allele represented?

Back

A dominant allele is represented by a capital letter.

Front

What is the result of crossing a red-flowered snapdragon with a white-flowered snapdragon?

Back

The offspring can have pink flowers due to incomplete dominance, where one allele for red and one for white are present.

Tags

NGSS.MS-LS3-2

Front

What does homozygous mean in genetics?

Back

Homozygous means that the alleles for a trait are the same.

Front

What does heterozygous mean in genetics?

Back

Heterozygous means that the alleles for a trait are different.

Front

What is a Punnett square used for?

Back

A Punnett square is used to predict the genetic outcomes of a cross between two organisms.

Front

If B = brown fur and b = white fur, what is the probability of getting brown fur from a Bb x Bb cross?

Back

The probability of getting brown fur is 75%.

Tags

NGSS.HS-LS4-3

Front

What is the genotype of an organism?

Back

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

Tags

NGSS.HS-LS3-2

Front

What is the phenotype of an organism?

Back

The phenotype is the observable physical characteristics of an organism, determined by its genotype.

Front

What is incomplete dominance?

Back

Incomplete dominance is when the phenotype of the heterozygote is intermediate between the phenotypes of the two homozygotes.