What is the purpose of junk DNA

Which of the following is the best definition of vectors? O quantities described by both speed and movement O quantities described by both magnitude and direction O quantities described by both force and gravity O quantities described by both force

You have isolated a new mutation in the T4 bacteriophage rII A gene and you map its location within the gene by recombination frequency.

How does polymerase chain reaction make DNA fingerprinting more reliable

Why are cells of multicellular organisms said to be "specialized"?

Describe the structure of the nucleus and explain the function of each part.

What is the function of the cell membrane? A) to give shape to the cell B) to increase the number of cells C) to control what enters and leaves the cell Eliminate D) to produce macromolecules within the cell

The incidence of Down syndrome, also known as trisomy 21, increases with increasing maternal age. Which of the following errors most likely produces this condition? A. Nondisjunction during meiosis II in either the male and female gameteB.

In a successional community, some kinds of organisms like fungi or beetles are present in every stage of succession.

What's responsible for preventing the gas giants from collapsing into a star?

If both species are harmed, it is a commensalistic interaction. or a. True b. False