how do some chemicals increase the risk of a person getting cancer?

a. by causing cell mutations

b. by causing a deficiency of vitamin d

c. by causing an increase of toxins in the skin

d. by causing a decrease in the immune system

14. which of the following codons code for threonine? a. ucg b. ugu c. cga d. aca

Refer to the family pedigree shown here. in generation i, one parent is affected by the gene mutation and one parent isn't. in generation ii, all three children are affected by the gene mutation. what can you conclude about this gene mutation? a. all children born in future generations will be affected by this disorder. b. this gene mutation is a dominant disorder. c. this gene mutation is a recessive disorder. d. the generation i mother is a carrier of this gene mutation.

Which of the following molecules can be broken down into simple sugars? a. nucleic acid b. protein c. lipid d. carbohydrate