DNA

Question 1

In RNA Adeninie pairs with:

Answer 1

Uracil

Question 2

What is translation?

Answer 2

mRNA is read by the ribosome in the cytoplasm and a polypeptide chain is formed to make a protein.

Question 3

What is transcription?

Answer 3

A gene is copied and a mRNA is formed.

Question 4

Where does transcription occur in the cell

Answer 4

Nucleus

Question 5

The double helix structure comprises:

Answer 5

A sugar phosphate backbone and pairs of nucleotide bases.

Question 6

How many pairs of chromosomes do humans have?

Answer 6

23 pairs

Question 7

A difference between DNA and RNA is:

Answer 7

DNA is double stranded and RNA is single stranded

Question 8

Which molecule contains the genetic information that controls cellular function and heriditary?

Answer 8

DNA

Question 9

What is the start codon?

Answer 9

AUG

Question 10

3 Bases is a:

Answer 10

Codon

Question 11

1 codon is a:

Answer 11

single amino acid

Question 12

A chain of amino acids is a:

Answer 12

Protien

Question 13

What are DNA mutations

Answer 13

Changes in genetic material

Question 14

How many mutations does everyone have in each cell?

Answer 14

about 6

Question 15

Are mutations always seen?

Answer 15

no

Question 16

Causes of genetic mutations:

Answer 16

Errors in DNA replication or environmental factors

Question 17

Genetic disorders caused by genetic mutations:

Answer 17

Huntingtons disease, cystic fibrosis and sickle cell anemia

Question 18

Where does Huntingtons disease occur

Answer 18

the central area of the brain

Question 19

What is HD caused by?

Answer 19

mutations in the HTT gene

Question 20

What does cystic fybrosis damage?

Answer 20

Lungs, digestive tract and other organs