Which of the following choices is not a key component to copying the template strand of DNA found at a crime scene? A. A primer sequence
B. Free nucleotides (dnTPs)
C. DNA polymerase
D. Gel electrophoresis

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.

(amoeba sisters video recap: pedigrees and need

In tomato plants, mendel found that the allele for smooth seeds (s) is dominant, while the allele for wrinkled seeds (s) is recessive. which of these punnett squares shows crosses between two plants heterozygous for smooth seeds? i need this to be answered as soon as ! sry the picture is bad quality