5.3 RNA/DNA Transcription

Question 1

What are the three stages of transcription?

Answer 1

initiation, elongation, and termination

Question 2

What happens during elongation?

Answer 2

introns are cut to make mature mRNA transcripts

Question 3

How many possible triplet codes can be generated from the base pairs?

Answer 3

64

Question 4

Why cant DNA leave the nucleus?

Answer 4

it is simply too big and it avoids the DNA from being damaged

Question 5

What happens when RNA polymerase acts on DNA?

Answer 5

it splits off and leave the nucleus

Question 6

What does a eukaryotic gene contain?

Answer 6

a promoter, enhancer/silencer, exons, and introns

Question 7

What is transcribed DNA?

Answer 7

a template strand

Question 8

What is untranscribed DNA?

Answer 8

a coding strand

Question 9

What is the main enzyme?

Answer 9

RNA polymerase

Question 10

What is different between nucleotides in DNA and RNA?

Answer 10

T is replaced with U in RNA

Question 11

What are some things about DNA polymers that are different from RNA polymers?

Answer 11

double stranded, longer strands, and only one function/structure

Question 12

What are some things about RNA polymers that are different from DNA polymers?

Answer 12

single stranded, shorter strand, multiple structure/functions

Question 13

What are some things about DNA nucleotides that are different from RNA nucleotides?

Answer 13

dioxyribose sugar, has T, and is more stable

Question 14

What are some things about RNA nucleotides that are different from DNA nucleotides?

Answer 14

ribose sugar, has U, and is less stable

Question 15

What is the order of transcription?

Answer 15

DNA to RNA to protein