NEET · Bio · Principles of Inheritance · Punnett — Gap Fill

Exercise and reference answers

Missing parts

1. Answer

   9:3:3:1

   Choices

   1. 3:1
   2. 9:3:3:1
   3. 1:2:1
   4. 1:1

2. Answer

   1:1:1:1

   Choices

   1. 1:2:1
   2. 9:3:3:1
   3. 3:1
   4. 1:1:1:1

Complete the statement

Cross TtRr × TtRr gives an F2 phenotype ratio of {0}, expected genotype ratio of {1}.

Instructions

Fill in dihybrid ratios for a heterozygous cross.