Protein synthesis: Part 1- Transcription

Question 1

1. At the start of protein synthesis, gene activation occurs. This is where there will be a removal of _______ and uncoiling of DNA.

Answer 1

Histones

Question 2

2. The first stage of protein synthesis is _____.

Answer 2

Transcription

Question 3

3. This occurs in the _____ of the cell.

Answer 3

Nucleus

Question 4

4. During this stage, the enzyme, ______, will read off the _____ strand of DNA.

Answer 4

• RNA polymerase

- template

Question 5

5. This enzyme will grab free nucleotides and add them to the mRNA chain by complementary base pairing; to where guanine on DNA would pair with ______, and adenine on DNA would pair with _____.

Answer 5

• Cytosine

- Uracil

Question 6

6. The enzyme RNA polymerase will read the ______, which is the set of 3 nucleotides on DNA that code for amino acid, and produce the ______, which is the set of 3 nucleotides on mRNA that code for an amino acid.

Answer 6

• Triplet code

- Codon

Question 7

When the enzyme RNA polymerase reaches the end of the gene, it and the mRNA will detach. The two strands of the DNA molecule will reform by _______.

Answer 7

Hydrogen bonding

Question 8

The mRNA molecule will leave the nucleus through the _____.

Answer 8

Nuclear pores