Dihybrid Punnett Squares

Dihybrid Punnett Squares

Assessment

Flashcard

Biology

9th - 10th Grade

Hard

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a Dihybrid Punnett Square?

Back

A Dihybrid Punnett Square is a diagram used to predict the outcome of a genetic cross involving two traits, each represented by two alleles.

2.

FLASHCARD QUESTION

Front

What does the term 'heterozygous' mean?

Back

Heterozygous refers to having two different alleles for a specific gene, such as Aa.

3.

FLASHCARD QUESTION

Front

What does the term 'homozygous' mean?

Back

Homozygous refers to having two identical alleles for a specific gene, such as AA or aa.

4.

FLASHCARD QUESTION

Front

What is the phenotypic ratio expected from a dihybrid cross?

Back

The expected phenotypic ratio from a dihybrid cross is 9:3:3:1.

5.

FLASHCARD QUESTION

Front

What is the genotypic ratio expected from a dihybrid cross?

Back

The expected genotypic ratio from a dihybrid cross is 1:2:1:2:4:2:1:2:1.

6.

FLASHCARD QUESTION

Front

How do you determine the possible gametes from a genotype?

Back

To determine possible gametes, combine one allele from each gene. For example, from GgBb, the gametes are GB, Gb, gB, gb.

7.

FLASHCARD QUESTION

Front

What is the significance of dominant and recessive alleles?

Back

Dominant alleles mask the effect of recessive alleles in the phenotype. For example, in the case of brown (B) and blue (b) eyes, B is dominant.

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