Genetics, Heredity, Punnett Squares

What is the tool called to figure out percent chance of a trait being passed from one generation to the next?

• Pungent Square

• Punnett Square

• Mendel's Square

• Punitive Square

If two heterozygous organisms are crossed, what is the percent chance that an offspring will have a dominant phenotype?

• 25%

• 50%

• 75%

• 100%

Observed when at least one allele for a characteristic is inherited. Represented by a CAPITAL letter.

• Homozygous

• Dominant Trait

• Recessive Trait

• Heterozygous

What does a homozygous dominant and a homozygous recessive have in common?

• They have identical combinations of alleles.

• They have different combinations of alleles.

• Nothing really.

• They are both written in capital letters.

Observed when two alleles for the same characteristic are inherited. Represented by a lower case letter.

• Recessive Trait

• Dominant Trait

• Heterozygous

• Homozygous

In a population of horses, long manes (L) are dominant and short manes (l) are recessive. A breeder crosses a male with a short mane with a heterozygous female. What percent should the breeder expect to have long manes?

• 25%

• 50%

• 75%

• 100%

If you have a 25% chance of a trait being passed down in a Punnett Square, will the percent chance be higher or lower if you were trying to produce an offspring that had multiple desired traits?

• higher

• it depends

• lower

• not enough information

In cats, long tails (L) are dominant to short tails (l). A breeder crosses a long tailed male cat with a short tailed female cat. What's the chance the offspring have long tails?

• 0-25%

• 25-50%

• 50-100%

• 100%

Brown eyes (B) are dominant over blue (b). Jo has brown eyes. Jo's father has blue eyes, Jo's mother has brown eyes, and Jo's mother's father has blue eyes. What is Jo's phenotype?

• Blue eyes

• not enough information

• green eyes

• Brown Eyes

Brown eyes (B) are dominant over blue (b). Jo has brown eyes. Jo's father has blue eyes, Jo's mother has brown eyes, and Jo's mother's father has blue eyes. What is Jo's genotype?

• BB

• Bb

• bb

• not enough information