Question
In humans, the ABO blood type is under the control of autosomal multiple alleles. Red-green color blindness is a recessive X-linked trait. If two parents who are both type A and have normal vision produce a son who is color-blind and type O, what is the probability that their next child will be a female who has normal vision and is type O?
Hi can someone please help me. Thank you
Hi can someone please help me. Thank you
Answers
PsyDAG
If they both have A type blood with an O son, their genotypes for blood are both AO. The probability of getting an O child is 25%. Check with a Punnett square.
If the parent both have normal vision, the mother must be a carrier for the color-blindness. The probability of getting a normal vision female is also 25%. Must get normal X from both mom and pop.
The probability of 2 or more events occurring is obtained by multiplying the probability of the separate events. You can do this.
I hope this helps. Thanks for asking.
If the parent both have normal vision, the mother must be a carrier for the color-blindness. The probability of getting a normal vision female is also 25%. Must get normal X from both mom and pop.
The probability of 2 or more events occurring is obtained by multiplying the probability of the separate events. You can do this.
I hope this helps. Thanks for asking.