DNA and RNA Vocabulary

Question 1

Chromosomes

Answer 1

A threadlike structure within a cell’s nucleus that contains DNA that is passed from one generation to the next.

Question 2

Double helix

Answer 2

The shape of a DNA molecule

Question 3

Nitrogen bases

Answer 3

Molecules that contain nitrogen and other elements

Question 4

DNA

Answer 4

Deoxyribonucleic acid; the genetic material that carries information about an organism and is passed from parent to offspring

Question 5

Gene

Answer 5

A sequence of DNA that determines a trait and is passed from parent to offspring

Question 6

DNA replication

Answer 6

Before a cell divides, the process in which DNA copies itself

Question 7

Thymine

Answer 7

One of the nitrogen bases that makes up the rungs of DNA

Question 8

Guanine

Answer 8

One of the nitrogen bases that makes up the rungs of DNA

Question 9

Cytosine

Answer 9

One of the nitrogen bases that makes up the rungs of DNA

Question 10

RNA

Answer 10

a messenger carrying instructions from DNA for controlling the synthesis of proteins

Question 11

Uracil

Answer 11

a base of RNA that takes the place of Thymine

Question 12

Adenine

Answer 12

One of the four nitrogen bases that make up the rungs of dna