Ultraviolent radiation can cause mutations in the dna of skin cells that have been overexposed to the sun. this dna has no effect on future offpring becasue what?

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that

The science for classifying and naming organisms is known as

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome