Answer:
They are microorganisms that are important in the nitrogen cycle as converters of soil ammonia to nitrates, compounds usable by plants.
Explanation:
If one parent has been affected by sickle cell anemia, while the other parent does not and is homozygous, the chances that a child will have this disorder is 0%. Thus, the correct option is C.
<h3>What is Sickle Cell anemia?</h3>
Sickle Cell anemia may be defined as a genetic disorder that is caused by a recessive allele. It is an inherited disease in which the red blood cells have an irregular crescent shape, obstruct small blood vessels, etc.
This disease is inherited when both genes of each parent are supposed to be defective or carriers. While in this case, only parents are affected by the disorder while the other is homozygous for the normal allele.
In this condition, all the offspring produced by both parents remain as carriers but not affected ones.
Thus, the correct option is C.
To learn more about Sickle cell anemia, refer to the link:
brainly.com/question/17063471
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E-coli is a significant virus
No, Catfish are scavengers because they eat dead organisms.
