Which Types of Phenotypic Ratios Are Likely to Occur in Crosses

question 50

Multiple Choice

Which types of phenotypic ratios are likely to occur in crosses when dealing with a single gene pair for which all the genotypic combinations are of equal viability?

• A) 9:3:3:1, 27:9:9:9:3:3:3:1
• B) 12:3:1, 9:7
• C) 1:2:1, 3:1
• D) 2:3, 1:2
• E) 1:4:6:4:1, 1:1:1:1