Modern Humans Have

question 2

Multiple Choice

Modern humans have:

• A)traits like large browridges, large nasal sinuses, and a large masticatory complex.
• B)a high vertical forehead, a round and tall skull, and small browridges.
• C)a small face, small teeth, and a projecting chin.
• D)both b.and c.

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Definitions:

Hershey And Chase

Scientists who conducted experiments in 1952 with bacteriophages that helped to prove that DNA is the genetic material of viruses.

DNA Nucleotides

The basic building blocks of DNA, consisting of a phosphate group, a sugar molecule (deoxyribose), and one of four nitrogenous bases (adenine, cytosine, guanine, or thymine).

DNA Polymerase

An enzyme that catalyzes the synthesis of new DNA molecules by adding nucleotides to a DNA strand.

Enzyme

Organic catalyst, usually a protein, that speeds a reaction in cells due to its particular shape.