Figure 29.1
-Given the information in Figure 29.1,what is the phenotype ratio (assuming C is dominant and there is no incomplete dominance)?
A) 1:1:1:1
B) 1:2:1
C) 1:3
D) 4:0

Question

Figure 29.1
-Given the information in Figure 29.1,what is the phenotype ratio (assuming C is dominant and there is no incomplete dominance)?
A) 1:1:1:1 
B) 1:2:1 
C) 1:3 
D) 4:0

Quizplus · Accepted Answer

In a cross between two heterozygous individuals (Cc), the phenotype ratio for a dominant-recessive trait without incomplete dominance is 3:1. Therefore, the phenotype ratio for this cross would be 1:3 (CC: Cc: cc). Option D (4:0) is not possible since both parents have the recessive allele, and option A (1:1:1:1) and option B (1:2:1) do not fit the expected phenotype ratio based on a dominant-recessive trait.

Figure 29.1 -Given the Information in Figure 29.1,what Is the Phenotype Ratio