Question

The gene of sickle cell anaemia is inherited by
A) Blood cells
B) Bone cells
C) Sec chromosomes
D) Autosomes

Answer 1

Hint:Anemia (also spelled anaemia) is a decrease in the total amount of red blood cells (RBCs) or hemoglobin in the blood, or a lowered ability of the blood to carry oxygen.

Complete answer:
Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body.Everyone has two copies of the haemoglobin gene in every cell in their bodies. They get one from their mother and the other one is inherited from the father. When the creation of egg and sperm is done, one one goes into the making. So this is true that when egg and sperm come together to make a new baby, the baby gets two genes in every cell in their body that is inherited from sperm and egg. Sickle cell anaemia is caused by a mutation in a gene called haemoglobin beta located on the chromosome. This is a genetic disorder which means that both copies of the gene must contain the mutation for a person to have sickle cell anaemia.

Thus the correct answer is option ‘A’.

Note:Signs and symptoms of sickle cell disease begin in early childhood in most cases, the symptoms include low number of red blood cells , repeated infections and periodic pains