The only possibility of the daughter being colour blind is where both parents have a recessive gene for colour blindness with the father being colour blind as well. so assuming the recessive allele is Xc, then the genotype of the mother is XCXc, where she has a normal colour vision and the father's genotype is XcY, where he is colour blind.
After having one concussion you are more likely to have another — some doctorsestimate you increase your risk up to three times. There are two reasons why your risk increases: carelessness and brain chemistry.
The answer to your question is,
A. sewage treatment plant
-Mabel <3
Answer:
It just seems like you're supposed to give four pieces of evidence of natural selection. If you're still confused, you can always ask your teacher.
Explanation:
