nucleic acids and gene expression 1 kahoot Qs

Question 1

During RNA processing what structures are spliced out of the RNA?

Answer 1

Introns

Question 2

Which of the following is not included in the components of a nucleotide?

Answer 2

A central carbon

Question 3

DNA nucleotides are very similar to RNA nucleotides accept they lack a ___ bound to their _____.

Answer 3

O, 2’ C

Question 4

How many rings comprise a Purine?

Answer 4

1

Question 5

Which of the following is not a pyrimidine?

Answer 5

Guanine

Question 6

Between what two structures does a Phosphodiester bond form

Answer 6

Pentose sugar (3’ C), phosphate group

Question 7

DNA is structured similar to a ladder, the vertical sides of a ladder are most similar to what?

Answer 7

Pentose Sugars and Phosphate groups

Question 8

A phosphate group is bound to which carbon in a Nucleotide?

Answer 8

5’

Question 9

Cytosine interacts with ___________ and forms ___ Hydrogen bonds

Answer 9

Guanine, 3

Question 10

Thiamine interacts with _______ and forms ________ H bonds

Answer 10

Adenine, 2

Question 11

The interaction of a strand of DNA as well as histones represents what level of DNA structure?

Answer 11

4th

Question 12

A phosphodiester bond represents which level of DNA structure?

Answer 12

2nd

Question 13

A bond between a Phosphate group and a pentose sugar represents what level of DNA structure?

Answer 13

1st

Question 14

Why do RNA strands form a hairpin loop?

Answer 14

They lack a complimentary strand

Question 15

Which of the following best describes the first arrow: DNA->RNA->Protein

Answer 15

Transcription

Question 16

A gene:

Answer 16

A section of a chromosomes

Question 17

Sigma factor appears in

Answer 17

Prokaryotes

Question 18

During initiation of transcription in prokaryotes which is true regarding sigma factor

• Sigma binds to RNA polymerase first
• Sigma binds to the mRNA strand first
• Sigma binds to DNA first
• Sigma binds to acetyl CoA in order to bind to the mRNA strand first

Answer 18

Sigma binds to RNA polymerase first

Question 19

The mRNA strand is complementary to…

Answer 19

The template strand

Question 20

The mRNA strand is similar to…..

Answer 20

Coding strand

Question 21

The coding strand and mRNA strand are very similar, accept the coding strand’s __ are replaced with __

Answer 21

T’s, U’s

Question 22

The ______ strand is read by RNA polymerase.

Answer 22

Template

Non coding

Question 23

RNA is synthesized in the ________ direction

Answer 23

5’ to 3’

Question 24

The first step of transcription in prokaryotes is…..

Answer 24

Sigma binds to RNA polymerase

Question 25

Next...

Answer 25

Sigma delivers RNA polymerase to the DNA strand

Question 26

In order for the delivered RNA polymerase to synthesize mRNA what must happen?

Answer 26

The hydrogen bonds in the DNA double helix must break

Question 27

The mRNA strand is released when RNA polymerase reaches ______.

Answer 27

Arnold, Terminator

Question 28

Which end of the mRNA is the poly A tail added to?

Answer 28

3'