DNA And RNA

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

Adenine

Answer 4

One of the four nitrogen bases that makes up the rungs of DNA. Abbreviated as A

Question 5

Thymine

Answer 5

One of the four nitrogen bases that makes up the rungs of DNA. Abbreviated as T

Question 6

Guanine

Answer 6

One of the four nitrogen bases that makes up the rungs of DNA. Abbreviated as G

Question 7

Cytosine

Answer 7

One of the four nitrogen bases that makes up the rungs of DNA. Abbreviated as C

Question 8

Gene

Answer 8

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

Question 9

DNA replication

Answer 9

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

Question 10

RNA

Answer 10

Ribonucleic acid: the genetic messenger that carries the genetic code from DNA inside the nucleus to the cytoplasm

Question 11

Uracil

Answer 11

A nitrogen base found in RNA instead of thymine. Abbreviated as U

Question 12

DNA

Answer 12

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