The Punnett square shown presents a cross between two pea plants. Both parent plants are tall. According to the chart, which percentages describe the offspring expected from the cross? (B.6F)
Question 2 options:
75% tall and 25% short
25% tall, 25% medium, and 50% short
50% tall and 50% short
The Punnett square shows that two tall parent plants are crossed. Since both parents are tall, they would both have the genotype "Tt" (where "T" represents the dominant allele for tallness and "t" represents the recessive allele for shortness).
When the Punnett square is filled out, it would show that 25% of the offspring would be homozygous dominant (TT), resulting in tall plants, and 75% of the offspring would be heterozygous (Tt), also resulting in tall plants. Therefore, the correct answer is:
75% tall and 25% short