Chapter 1.4 DNA and the production of proteins

Question 1

Chromosomes are made up of regions called

Answer 1

genes

Question 2

DNA is a complex substance that forms

Answer 2

the genes of all living organisms.

Question 3

DNA carries the genetic information, which is information for making

Answer 3

proteins

Question 4

A single DNA molecule is a

Answer 4

double-stranded helix

Question 5

Each strand of DNA is a chain carrying molecules called

Answer 5

bases

Question 6

There are four different types of bases and they are

Answer 6

Adenine, Thymine, Guanine and Cytosine

Question 7

The strands of the DNA helix are held by

Answer 7

bonds between bases on each strand

Question 8

The bases bond together to form

Answer 8

complementary base pairs.

Question 9

Base A only pairs with

Answer 9

base T

Question 10

Base G only pairs with

Answer 10

base C

Question 11

The sequence of bases A,T,G and C make up the

Answer 11

genetic code

Question 12

The base sequence of a specific gene determines the

Answer 12

amino acid sequence in the specific protein to be assembled.

Question 13

Proteins are assembled at

Answer 13

ribosomes in the cell cytoplasm

Question 14

Messenger RNA (mRNA) is a molecule that carries a

Answer 14

complementary copy of the code from the DNA in the nucleus to a ribosome.