Structure of DNA

Question 1

What is the DNA Molecule comprised of?

Answer 1

The DNA molecule is
comprised of two chains of
nucleotides.

Question 2

How is the genetic code made up and what is it used for

Answer 2

The base sequence forms the
genetic code.

Much of this code is used to
create proteins.

Question 3

What are anti Parallel strands?

Answer 3

The double helix is described as
having two anti-parallel chains
of nucleotide because one side
goes from 5’ to 3’ and the
opposite side goes from 3’ to 5’.

Question 4

What is the Double Helix

Answer 4

The chains of nucleotide are joined together by

the bases which are joined by hydrogen bonds, which twists to form a double helix structure.

Question 5

What are the bases described as and what ones are there?

Answer 5

These bases are described as
being complementary to each
other. This means their shapes
match up.

Adenine always joins to
Thymine

Cytosine always joins with
Guanine

The bases are joined by
hydrogen bonds.

Question 6

Sugar Phosphate Bond

Answer 6

Nucleotides in a chain are
joined together by
sugar-phosphate bond to make
the sugar-phosphate backbone
of the DNA molecule.

From carbon 3 of one sugars to
the phosphate of the next.