During DNA replication, the enzyme DNA Helo case function to

A) unzips and unwind the strand of DNA.

B) match the correct base

C) rejoin the hydrogen bonds

Explain why the water plant contains the pesticide ddt

Is knowing the ABO blood type of a potential blood donor enough to determine a suitable match?

Which of the following is not one of the Earth's cycles? A) carbon cycle B) nitrogen cycle C) water cycle D) soil cycle

Why is the flow of energy important? and why

What is the outer layer of the earth?

What female reproductive organ transports oxygen directly to the embryo?

Let's assume that the ability to cross one's eyes is a mendelian trait, in that it is determined by only two alleles, which can be dominant, recessive, or a combination of the two.

During the digestion of foods, large molecules are broken down into smaller molecules

Identify each statement as a hypothesis, theory, or law. Higher air pressure causes fuel to burn at a faster rate.

Which sequence represents the correct levels of organization for multicellular organisms