Researchers want to use edna to look for an invasive species in a waterway. which of the following steps should they do first? a. sort the edna into bands on a gel. b. cut the edna into fragments of different sizes. c. isolate edna from water samples taken from the waterway. d. compare the edna with a positive control.

What is the difference between sex-linked traits and autosomal traits in humans? a. sex-linked traits can only be passed from fathers to sons, while autosomal traits can be passed on from both parents to offspring of any sex. b. sex-linked traits are passed on through the x and y chromosomes, while autosomal traits are passed on through the other 22 chromosomes. c. sex-linked traits only affect females, while autosomal traits affect both males and females. d. sex-linked traits refer to genes that are on the x and y chromosomes, while autosomal traits refer to genes on all 23 chromosomes.