4.3 DNA Replication

Question 1

What does transcription do in the DNA replication process?

Answer 1

Makes RNA

Question 2

What does adenine bond to in DNA and RNA?

Answer 2

In DNA adenine bonds to thymine, in RNA adenine bonds to uracil

Question 3

What is the difference between the structures of DNA and RNA?

Answer 3

DNA is double stranded, and always in a double helix shape. RNA is single stranded, and the way it bends depends on its function.

Question 4

Which strand does the mRNA use?

Answer 4

Template strand

Question 5

What is the first step of transcription?

Answer 5

General transcription factors bind to TATA box

Question 6

What enzyme separates the DNA strands?

Answer 6

Helicase

Question 7

What enzyme adds nucleotide bases?

Answer 7

DNA polymerase III

Question 8

If the template strand is ATGCCGTAC what is the coding strand and mRNA?

Answer 8

coding strand is TACGGCATG, mRNA is UACGGCAUG

Question 9

What happens during alternative splicing?

Answer 9

One gene is coded for multiple proteins

Question 10

What is the last step of DNA transcription?

Answer 10

Proteins cut the mRNA from the polymerase