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.

According to the article on snakes, what unique characteristic has led scientists to study the paradise tree snakes of South Asia? A. their venom can cure cancer B. they can fly through the air C. they can swim in the ocean D.

What is the most common element found in the composition of minerals?

What are the macromolecules DNA and RNA referred to?

Which plant division has seeds with a 3n endosperm due to double fertilization?

What occurs during mitosis? A. DNA and chromosome duplication B. growth and metabolism of the cell C. cell division to create two daughter cells

Why does the oxygen atom in a water molecule have a negtive change

Melting wax evaporating gasoline freezing water These changes are all examples of A) nuclear changes. B) physical changes. C) chemical changes. D) energy consumption.

A woman is a natural blonde and her husband has black hair. All their children have black hair. Why do you think that the blonde hair did not appear in any of the children?

Explain why capillaries form dense networks in tissues with a high metabolic rate

Which type of preparations should be patted onto the skin rather than rubbed in?