Question

1. a teacher prepared a dihybrid cross punnett square and a key to dominant and recessive traits.

t - tall plants
t - short plants
r - round seeds
r - wrinkled seeds
what is the correct genetic combination of offspring x?

Explanation:

Step1: Determine the alleles from each parent

The row parent (Tr) contributes T and r alleles. The column parent (Tr) contributes T and r alleles.

Step2: Combine the alleles

When combining the alleles from the row (Tr) and column (Tr) for the box labeled X, we get \( T\times T = TT \) and \( r\times r=rr \). So the genetic combination is \( TTrr \).

Answer:

\( TTrr \)