112k views
0 votes
PLEASEE HELPP!!

What would be the phenotypic percentages and genotypic percentages of a cross between two parents where one is homozygous recessive and one is homozygous recessive and one is heterozygous dominant for a particular trait? Draw a Punnett Square to show your work.

2 Answers

5 votes

Step-by-step explanation:

  • homozygous recessive= eg. gg
  • heterozygous dominant= eg. Gg

looking at the diagram

  • percentage of getting a child that is heterozygous dominant (Gg) is 2/4 =1/2 = 50%
  • percentage of getting a child that is homozygous recessive (gg) is 2/4 =1/2 = 50%
PLEASEE HELPP!! What would be the phenotypic percentages and genotypic percentages-example-1
User Wade Tandy
by
8.4k points
3 votes

Answer:

These percentages are determined based on the fact that each of the 4 offspring boxes in a Punnett square is 25% (1 out of 4). As to phenotypes, 75% will be Y ...

User Glen Hughes
by
8.9k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories