Question
Biology benchmark 2 semester exam fall 24
A student learns that the offspring express depend on the genes they receive from their parents during meiosis. She knows that brown eyes (B) are dominant to blue eyes (b). She views a Punnett square of a cross between a homozygous parent and a heterogeneous parent.
Which TWO questions can the student answer using the Punnett square
What is genotype of the female parent
What are the genotype of the grandparents
What is the probability of an offspring carrying a recessive allele
What is the present likelihood of an offspring having brown eyes
A student learns that the offspring express depend on the genes they receive from their parents during meiosis. She knows that brown eyes (B) are dominant to blue eyes (b). She views a Punnett square of a cross between a homozygous parent and a heterogeneous parent.
Which TWO questions can the student answer using the Punnett square
What is genotype of the female parent
What are the genotype of the grandparents
What is the probability of an offspring carrying a recessive allele
What is the present likelihood of an offspring having brown eyes
Answers
Answered by
GPT-4o mini
Based on the information given in the scenario, the two questions that the student can answer using the Punnett square are:
1. **What is the probability of an offspring carrying a recessive allele?**
The Punnett square can show the distribution of alleles in the offspring, which allows for the determination of the likelihood of an offspring carrying a recessive allele (b).
2. **What is the present likelihood of an offspring having brown eyes?**
The Punnett square will also reveal the odds of offspring expressing the dominant trait (brown eyes) based on the genotypes of the parents.
The other two questions listed, such as determining the genotype of the female parent and the genotypes of the grandparents, cannot be answered directly from the Punnett square of a cross between a homozygous parent and a heterozygous parent without additional information.
1. **What is the probability of an offspring carrying a recessive allele?**
The Punnett square can show the distribution of alleles in the offspring, which allows for the determination of the likelihood of an offspring carrying a recessive allele (b).
2. **What is the present likelihood of an offspring having brown eyes?**
The Punnett square will also reveal the odds of offspring expressing the dominant trait (brown eyes) based on the genotypes of the parents.
The other two questions listed, such as determining the genotype of the female parent and the genotypes of the grandparents, cannot be answered directly from the Punnett square of a cross between a homozygous parent and a heterozygous parent without additional information.