The Structure of DNA

Question 1

Name the 3 things that make up a DNA nucleotide?

Answer 1

deoxyribose sugar, phosphate and base

Question 2

Which 2 chemicals make up the backbone of the DNA strand?

Answer 2

Deoxyribose sugar and phosphate

Question 3

A stands for

Answer 3

adenine

Question 4

T stands for

Answer 4

thymine

Question 5

C stands for

Answer 5

cytosine

Question 6

G stands for

Answer 6

guanine

Question 7

A goes with

Answer 7

T

Question 8

G goes with

Answer 8

C

Question 9

Name the bonds that hold the two strands of DNA together.

Answer 9

Hydrogen

Question 10

What is found at the 3’ end of a DNA nucleotide?

Answer 10

deoxyribose sugar

Question 11

What is found at the 5’ end of a DNA nucleotide?

Answer 11

Phosphate

Question 12

What name is given to the twisted shape of DNA?

Answer 12

double helix

Question 13

What forms the genetic code?

Answer 13

The sequence of the bases

Question 14

Describe the chromosomes in prokaryotes.

Answer 14

single and circular

Question 15

Describe the chromosomes in eukaryotes.

Answer 15

linear

Question 16

State the two locations of circular chromosomes within eukaryotes.

Answer 16

mitochondria and chloroplasts

Question 17

Name the small circular rings of DNA found in prokaryotes.

Answer 17

plasmids

Question 18

Why is yeast a special example of a eukaryote?

Answer 18

contains plasmids

Question 19

Name the protein found in eukaryotes that DNA winds around.

Answer 19

histones

Question 20

What term is used to describe the fact that the 2 strands of DNA run in opposite directions?

Answer 20

anti-parallel

Question 21

Which cells contain DNA in a nucleus and plasmids?

Answer 21

Fungal cells

Question 22

Which group of cells have a nucleus with a distinct membrane?

Answer 22

Eukaryotic

Question 23

Which group of cells have no nucleus?

Answer 23

Prokaryotes

Question 24

In which part of a cell are linear chromosomes found?

Answer 24

nucleus

Question 25

Where are circular chromosomes found in animal cells?

Answer 25

mitochondria

Question 26

Where are circular chromosomes found in plant cells?

Answer 26

mitochondria and chloroplasts

Question 27

Which type of cell has linear chromosomes and plasmids?

Answer 27

fungal cells