Pedigree Charts

Explain How Economics And Politics Can Positively Or Negatively Impact Species And Ecosystems
August 2, 2019
Management Communication
August 2, 2019

Pedigree Charts

Hemophilia, disease in which the blood lacks a clotting factor, is caused by an X linked recessive gene. Joe doe not have hemophilia and Lucille is heterozygous for the condition.  What is the chance that their MALE child will have hemophilia? (Note: you are calculating the probability for their MALE children only, in other words if they have 1 male child, what is the probability that he will be born with the disease?)

-0%

-1/4 or 25%

-2/4 or 50%

-3/4 or 75%

-4/4 or 100%

 

In humans, having facial dimples is dominant to not having facial dimples. Mary has dimples, yet only 3 of her 10 children have dimples.  What must Mary’s genotype be?

-homozygous dominant

-heterozygous

-homozygous recessive

-has dimples

-does not have dimples

 

Red-green color blindness is an X-linked recessive disorder.  If Allison is heterozygous (a carrier), and her husband, Michael, is NOT colorblind. What is the chance that their male children will be colorblind? (Note: you are calculating the probability for their MALE children only, in other words if they have 1 male child, what is the probability that he will be born with the disease?)

-0%

-25% or 1/4

-50% or 2/4

-75% or 4/4

-100% or 4/4

 

Red-green color blindness is an X-linked recessive disorder. If Allison is heterozygous (a carrier), and her husband, Michael, is NOT colorblind. What is the chance that their female children will be colorblind? (Note: you are calculating the probability for their FEMALE children only, in other words if they have 1 female child, what is the probability that she will be born colorblind?)

-0%

-25% or 1/4

-50% or 2/4

-75% or 3/4

-100% or 4/4