Chargaff's rules of DNA structure states that

A + T = G + C.

A + G = T + C.

A = C, T = G.

A = T, G = C.

the number of purines in DNA never equals the number of pyrimidines.

What type of transport requires energy to move a molecule?

Where does precipitation o occur in the water cycle?

Which of the chains of amino acids corresponds to the nucleotide sequence aauggcuac

When you are holding a book energy is stored between the book and earth this type of energy called?

Keratinized stratified squamous epithelium is found A. in the skin. B. covering bones. C. in the mouth. D. covering tendons.

At which trophic level are dragonflies that consume

Which example is an organism? A. bacteria B. heart C. clay D. soil

What are some examples of a chemical reaction?

If you continue to increase the intensity of light that a plant receives, what happens? A. The rate of photosynthesis increases indefinitely with light intensity. B. The rate of photosynthesis decreases indefinitely with light intensity. C.

Three structural changes that occur in young unmodified plant cells as they develop into xylem tissues