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A permanent change in base sequence of a DNA molecule that is a result of DNA replication is called a(n):

According to the Octet Rule, except for the first electron shell, how many electrons are present in a stable or full energy level (shell) for the common biological atoms?

What determines the mass number of an atom?

What wavelength of light energy does chlorophyll most absorb?

Fats and oils are lipids made from triglycerides. A triglyceride is composed of:

Mitotic cell division is important for all except:

Refer to Figure 3. Which substance is the enzyme?

In humans, aniridia, a type of blindness, is due to a dominant gene A.  Migraine headaches are due to another dominant gene M, which is on a different chromosome.  A man who suffers from both conditions (AaMm) marries a woman who suffers from both (AaMm). What are the chances of an offspring having both aniridia and migraine headaches?

Use the Table provided to answer the following question: The DNA sequence ATC codes for the amino acid:  

The hydrogen bond between two water molecules forms because water is