Which of the following do you expect if an individual is heterozygous for the sickle-cell trait? See Concept 14.3 Group of answer choices

1. He or she will show some symptoms of the disease.
2. He or she will have full-blown sickle-cell disease because the allele is dominant.
3. He or she will not develop sickle-cell disease.
4. He or she will be more apt to acquire a serious case of malaria.
5. None of the above.

1) He or she will show some symptoms of the disease

Explanation:

The sickle cell anaemia is an autosomal recessive trait which indicates the presence of both the recessive alleles (homozygous condition) will affect the individual but the presence of one allele makes the individual a carrier of the disease.

The individuals with the heterozygous condition become a carrier of the diseases and will show few symptoms of the disease due to the presence of the one infected allele which will form few cells sickle-cell of the red blood cells but the homozygous condition will form all sickle-shaped cell and thus will cause the disease.

Thus, Option-1 is the correct answer.

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