DNA

Question 1

DNA is made up of a long chain of sub-units. What are the sub-units called?

Answer 1

Nucleotides

Question 2

What is a nucleotide made up of?

Answer 2

A sugar called dexyribose.
A phosphate group -PO4
Organic base

Question 3

What are the most common organic bases?

Answer 3

Adenine (A)
Thymine (T)
Cytsoine (C)
Guanine (G)

Question 4

Does DNA contain a double or single strand of nucleotides?

Answer 4

Double

Question 5

A paired strand of the bases are called?

Answer 5

A double helix

Question 6

What is replication?

Answer 6

Before a cell divides, the DNA strands unwind and separate. Each strand makes a partner.. There is now two double stranded DNA molecules in the nucleus. The cell divides and each nucleus contains identical DNA.

Question 7

What is the triplet code?

Answer 7

A group of three bases controls the production of a particular amino acid in the cytoplasm of the cell.

Question 8

The DNA of the nucleus makes a single strand of what?

Answer 8

RNA

Question 9

The DNA controls the enzymes and the enzymes determine what?

Answer 9

What reactions take place.