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schepotkina [342]
1 year ago
13

Bob and Joan know from a blood test that they are each heterozygous for the autosomal recessive

Biology
1 answer:
NNADVOKAT [17]1 year ago
4 0

There is 25% chances that their fourth child will have the sickle cell disease.

<h3>Briefing :</h3>

Any given child has a one in four (25%) chance of being born with sickle cell anemia if both parents have the sickle cell trait (HbAS). But if one of the parents has sickle cell disease and the child does too. These kids won't show signs of SCD, but they can pass on SCD to their offspring.

<h3>Sickle cell anemia :</h3>

A collection of issues that lead to the degeneration and malformation of red blood cells.

Red blood cells twist into a sickle shape as a result of the inherited group of disorders known as sickle cell disease. Sickle cell anemia results from the early death of the cells, which can also block blood flow and cause pain (sickle cell crisis).

Sickle cell disease causes fatigue, pain, and infections.

To know more about red blood cells :

brainly.com/question/17890844

#SPJ9

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