Purple flower (A)is dominant over white flower (a),and tall stem (B)is dominant over short stem (b).The Punnett square represents a cross between two dihybrids (AaBb × AaBb).
Examine the figure above,and answer the following question(s).
-In the figure above,how many plants would have purple flowers and tall stems?
A) 1
B) 3
C) 5
D) 9
E) 16

Question

Purple flower (A)is dominant over white flower (a),and tall stem (B)is dominant over short stem (b).The Punnett square represents a cross between two dihybrids (AaBb × AaBb).
Examine the figure above,and answer the following question(s).
-In the figure above,how many plants would have purple flowers and tall stems?
A) 1 
B) 3 
C) 5 
D) 9 
E) 16

Quizplus · Accepted Answer

Looking at the Punnett square, we can see that the offspring with the genotype AaBb will have both purple flowers (A) and tall stems (B). There are 9 offspring with this genotype (highlighted in yellow). Therefore the answer is D) 9.

Purple Flower (A)is Dominant Over White Flower (A),and Tall Stem