Question

which punnett square shows the results of a cross between two organisms that are heterozygous? a. b. c. d. a a b b c c d d

Explanation:

A heterozygous organism has the genotype \( Tt \). When two heterozygous organisms (\( Tt\times Tt \)) are crossed, the Punnett - square is set up as follows:

• The gametes from the first parent are \( T \) and \( t \).
• The gametes from the second parent are \( T \) and \( t \).
• The Punnett - square combinations are \( TT\) (from \( T\times T \)), \( Tt\) (from \( T\times t \)), \( Tt\) (from \( t\times T \)), and \( tt\) (from \( t\times t \)).

Answer:

B