DNA and RNA Exam Unites 7/8

Question 1

What direction can DNA polymerase build in

Answer 1

5’ to 3’

Question 2

How to find directionality of nucleotides?

Answer 2

Start at the pointy end, label that 0’, then work your way clockwise until you get to 5.

Question 3

What is Transcription and what is translation

Answer 3

Transcription is making mRNa from complementary bases of DNA. Translation is using mRNA in the ribosome, along with tRNA, to encode for the arrangement of amino acids

Question 4

Purpose of DNA vs Purpose of RNA

Answer 4

DNA stores and transmits genetic infromation while RNA deals with protein synthesis, gene regulation, and other cellular processes

Question 5

How are errors in DNA prevented during replication?

Answer 5

DNA polymerase can proofread and fix erros

Question 6

Where is the codon and where is the anticodon

Answer 6

the codon is on mRNA and the anticodon is on tRNA

Question 7

the directionality of DNA replication is ___

Answer 7

antiparallel

Question 8

What is the hierarchy of genetic material

Answer 8

Organism -> cell -> nucleus -> chromosomes -> genes -> DNA

Question 9

What prevent sstrands from rebinding

Answer 9

Single Strand Binding Proteins