Genetics Quiz

Chromosomes are composed of __________, a combination of DNA and protein.

__________ are the researchers who showed that DNA is the genetic material.

Individual units of DNA are __________; they have three parts: __________, __________, and __________.

When they are linked together they form a __________ backbone with __________ off to the side.

There are four types of nucleotides that make up a DNA strand: we call these nucleotides by the first initial of the base. The base pairing rules tell us that __________ always pairs with __________; and __________ always pairs with __________.

This explains Chargoff's rule (which states that the amount of __________ always equals the amount of __________; and the amount of __________ always equals __________).

The two researchers who discovered the base pairing rules and who also described DNA as a double helix were __________ and __________.

They based some of their work on the X-ray pictures made by __________ and __________.

When DNA is replicated, the double helix unwinds and this enzyme, __________, builds a new strand of DNA alongside each of the old strands, using the base pairing rules.

This is __________ replication, since each new double helix consists of one old and one new strand of DNA.