Choose all the answers that apply.

genes

combine during gamete formation
occur in pairs
determine phenotype
can be dominant
can be recessive

occur in pairs

determine phenotype

can be dominant

can be recessive

Explanation:

Genes are hereditary factors that are transmitted from parent to offspring. Genes occupy definite positions on the chromosomes as gene loci and occur in pairs. The expression of genes determines an organism's traits. Genes can be dominant or recessive.

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Explanation:

answerlength of time the medication is in contact with the skin(moistur level of the skin) depth of respirations blood supply to the area; all of the above; ///