Question

why is understanding genetic diversity crucial in medical research?
a. doesnt impact medical research
b. creates limitations in treatments
c. helps understand how diseases manifest differently and develop tailored treatments
d. hinders scientific progress

which genetic disorder primarily affects individuals of african descent due to a point mutation?
a. sickle cell anemia
b. down syndrome
c. klinefelter syndrome
d. tay - sachs disease

how does klinefelter syndrome differ from typical male chromosomes?
a. it lacks an x chromosome
b. it has an extra x chromosome (xxy)
c. it lacks a y chromosome
d. it has an extra y chromosome

what causes tay - sachs disease?
a. mutations in the hexa gene
b. inversions in chromosome 5
c. translocations between chromosome 13 and 20
d. an extra copy of chromosome 21

Explanation:

• First question: Genetic diversity helps understand disease manifestations and develop tailored treatments. Options a, b, d are incorrect as genetic diversity does impact medical research (negating a), doesn't create limitations (negating b), and doesn't hinder scientific progress (negating d).
• Second question: Sickle Cell Anemia is a genetic disorder with a point mutation mainly affecting those of African descent. Down syndrome (b) is due to an extra chromosome, Klinefelter syndrome (c) is a sex - chromosome disorder, and Tay - Sachs (d) has a different genetic cause.
• Third question: Klinefelter syndrome has an extra X chromosome (XXY). Typical males have XY. Option a (lacks X) is wrong, option c (lacks Y) is wrong, option d (extra Y) is wrong.
• Fourth question: Tay - Sachs is caused by mutations in the HEXA gene. Inversions in chromosome 5 (b) are related to other disorders, translocation between 13 and 20 (c) is for other conditions, and an extra copy of chromosome 21 (d) is Down syndrome.

Answer:

1. c. Helps understand how diseases manifest differently and develop tailored treatments
2. a. Sickle Cell Anemia
3. b. It has an extra X chromosome (XXY)
4. a. Mutations in the HEXA gene