Question

A teacher prepared a dihybrid cross Punnett square and a key to dominant and recessive traits.

IR - I R tr.
T - tall plants
TR - t - short plants
R - round seeds x r - wrinkled seeds

According to the information shown above, what is the appearance of offspring X?

A) Tall, round
B) Short, wrinkled
C) Short, round
D) Tall, wrinkled

Answer 1

The appearance of the offspring in the dihybrid cross would be tall and round.

Step-by-step explanation:

To determine the appearance of offspring X in a dihybrid cross between a tall plant with round seeds (IRTR) and a short plant with wrinkled seeds (irtr), we need to create a Punnett square. The possible combinations of alleles for the parent plants are IRTr x irtr. Filling out a Punnett square with these combinations will reveal the genotypes and phenotypes of the offspring. In this case, the appearance of offspring X would be:

A) Tall, round