Basic Genetic Terminology

Question 1

How many hydrogen bonds do C and G have?

Answer 1

3 hydrogen bonds

Question 2

What replaces thymine (T) in RNA?

Answer 2

Urasil (U)

Question 3

What is the DNA backbone made up of?

Answer 3

Alternating phosphate and sugar with nucleotide pairs bonding to the sugar

Question 4

Which direction does the leading strand go in relation to helicase?

Answer 4

In the same direction as the helicase

Question 5

Which base pairs with adenine (A) in DNA?

Answer 5

Thymine (T)

Question 6

In what direction does replication occur?

Answer 6

5’ to 3’ direction

Question 7

In which direction does the lagging strand build in relation to helicase?

Answer 7

In the opposite direction of the helicase

Question 8

What does RNA stand for?

Answer 8

Ribonucleic acid

Question 9

What does DNA stand for?

Answer 9

Deoxyribonucleic acid

Question 10

Which base does urasil (U) bond with in RNA?

Answer 10

Adenine (A)

Question 11

What is the 5’ end of DNA characterized by?

Answer 11

The end with phosphate

Question 12

Which base pairs with guanine (G) in DNA?

Answer 12

Cytosine (C)

Question 13

How many hydrogen bonds do A and T have?

Answer 13

2 hydrogen bonds

Question 14

What is the sugar in DNA called?

Answer 14

Deoxyribose

Question 15

What is the sugar in RNA called?

Answer 15

Ribose

Question 16

If there are a lot of C and G pairs, how does this affect DNA?

Answer 16

The DNA will be harder to split apart