Topic 5: DNA sequences of gene code for a specific protein

Question 1

What is the order or information flow in a cell?

Answer 1

DNA, RNA, Protein

Question 2

What reactions fit between
DNA and RNA,
RNA and Protein

Answer 2

Transcription
Translation

Question 3

is RNA stable and difficult to degrade?

Answer 3

No, RNA is unstable and will degrade easily.

Question 4

Is RNA an information mover or storer?

Answer 4

Mover not Storer

Question 5

Properties of RNA

Answer 5

Short lived
Single stranded
Abundant
Can make 100s of mRNAs from one gene

Question 6

Is DNA an information mover or storer?

Answer 6

Information store

Question 7

Properties of DNA

Answer 7

Long lasting
Double stranded

Question 8

Not all genes carry instructions to make proteins. Which RNA helps and codes for proteins.

Answer 8

mRNA - codes
tRNA - helps make
rRNA - helps make

Question 9

What end is the promoter ALWAYS close to?
What does it control?

Answer 9

5’
Initiation of transcription

Question 10

Protein binding leads to the DNA strand being what?

Answer 10

Bent

Question 11

What does RNA polymerase do?

Answer 11

It opens the DNA. It transcribes the RNA, 5’ to 3’ using DNA as a template

Question 12

The RNA goes along the DNA making RNA until it reaches?

Answer 12

A signal, the signal is only recognised in the RNA

Question 13

What are the 3 stop codons?

Answer 13

UAA
UAG
UGA

Question 14

What do subunits of the Ribosome contain?

Answer 14

RNA and Protein

Question 15

What is the core of a ribosome?

Answer 15

rRNA

Question 16

What does rRNA join together, and what bonds does it create?

Answer 16

Amino acids and makes the Peptide bond between the two Amino acids.

Question 17

How many double stranded helix stems does tRNA have?

Answer 17

4