RNA and DNA

Question 1

“RNA world” hypothesis

Answer 1

Proposes that the first genetic material and enzymes were RNA molecules

Question 2

RNA can…

Answer 2

1) act as a catalyst to BIND amino acids together to form proteins
2) Replicate itself to form more RNA

Question 3

What might have given rise to the first DNA?

Answer 3

RNA can be transcribed to DNA (using reverse transcriptase)

Question 4

Which is more stable, DNA or RNA?

Answer 4

DNA is more stable, and eventually took over carrying the genetic info

Question 5

In Miller and Urey’s experiments what was created, and what was harder to produce?

Answer 5

Ribose was created (RNA nucleotide was present)

Deoxyribose was harder to produce

Question 6

Structure of RNA vs DNA

Answer 6

RNA has a simpler structure

Unlike DNA, RNA is single-stranded and can adopt very complex 3d structures.

Question 7

RNA Pairing

Answer 7

G-C

A-U

Question 8

What letter is only present in DNA?

Answer 8

T

Question 9

Sugars in DNA and RNA?

Answer 9

RNA= “Ribose”

DNA= “Deoxyribose”

Question 10

Bases in DNA and RNA?

Answer 10

RNA= Uracil

DNA= Thymine

Question 11

In modern living systems, info flows from

Answer 11

DNA -> RNA -> Protein

Question 12

RNA is essential for…

Answer 12

all forms of life

Question 13

Similarity between DNA and RNA structure?

Answer 13

Both are made up of a long chain of nucleotides

Question 14

What is RNA

Answer 14

Ribo
Nucleic
Acid

One of the 4 major biomolecules (along with lipids, carbs, and proteins.

Question 15

Every RNA consists of a

Answer 15

• base
• ribose
• sugar
• phosphate group

Question 16

Where does RNA exist?

Answer 16

in viruses