Assignment: SCIE207 Phase 3 Lab Report
Title: Lab to Determine the Outcome of Heredity
Exercise 1: Color Blindness
A. Choose the parental gametes, and align these in the correct positions around the Punnett square. (Type in
the correct gametes. Pink are the female gametes, and blue are the male gametes. XC is the gene for
normal vision, and Xc is the gene for color blindness.)
B. Choose the correct genotype of the progeny to fill in the Punnett square.
(Type the correct genotypes in the boxes.)
What is the genotype of the mother?
What is the genotype of the father?
What are the possible phenotypes of their
Half of the children will have
normal vision and the other half
will be color blind.
What is the probability of the color blind trait in
The probability is 50% in female
female children and the probability of the color
and 50% in male children.
blind trait in male children?
X and Y genes code for male and female gender.
Since XcY has a recessive gene
XX is female and XY is male. Why is XcY color
on the X-chromosome it is color
blind, but XcXC not color blind? Can an XcXC