Individuals who are heterozygous for the sickle-cell allele suffer less from the attack of malaria because a small percentage of the red blood cells are sickle-shaped. They are more resistant to malaria than individuals who have two copies of the normal haemoglobin allele. Heterozygous individuals have a better chance of surviving and reproducing in regions where malaria is prevalent since they do not fully contract the disease.
Answer:
I'm almost positive it's answer c. :)
50% of the offspring will be Aa (red), 50% will be aa (white).
Root nodules
You can also just find this on google
