Which eating disorder has symptoms of dry skin and cessation of periods?
a. anorexia nervosa
b. binge-eating disorder
c. bulimia nervosa
d. orthorexia

Anorexia nervosa (Ans. A)

Explanation:

Anorexia nervosa is also known as anorexia which is an eating disorder. Sign of this disorder are less than normal body weight, obsession with food and negative image of body.

Peoples who are suffering from this disorder are very restricted to consume food. It is an eating disorder which leads to fatal consequences.

Symptoms of Anorexia:

1) Peoples don't eat enough, so they don't have enough weight.

2) Peoples no longer to get their periods.

3) Suffering from constipation.

4) Suffering from dehydration.

5) Swollen arms or legs.

Anorexia nervosa also has symptoms of dry skin and cessation of periods.

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."