How can DNA be used to help solve a crime?

One gene can influence trait(s). one trait can be determined by gene(s).

Nucleic acid certain protein cell membranes certain carbohydrates

20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.