Question

Sister chromatid exchanges increase in frequency in the presence of X-rays, certain viruses, ultraviolet light, and

certain chemical mutagens. In what autosomal recessive disorder is there known to be an increase in sister
chromatid exchanges?
A) cystic fibrosis
B) Harlequin syndrome
C) achondroplasia
D) Huntington's disease
E) Bloom syndrome

Answer 1

Bloom syndrome is the autosomal recessive disorder known to be associated with an increase in sister chromatid exchanges.

Step-by-step explanation:

The autosomal recessive disorder known to be associated with an increase in sister chromatid exchanges is Bloom syndrome. Sister chromatid exchanges occur when parts of chromatids exchange genetic material during meiosis. Bloom syndrome is a rare genetic disorder characterized by stunted growth, increased risk of cancer, and sensitivity to sunlight.