1.1 Structure Of DNA

Question 1

Histones

Answer 1

Proteins in linear chromosomes

Question 2

Guanine

Answer 2

Base pair that pairs with cytosine

Question 3

Hydrogen Bond

Answer 3

Weak link that joins the base pairs

Question 4

Mitochondria

Answer 4

Cell organelles where aerobic respiration stages occur

Question 5

Nucleotide

Answer 5

Component of DNA consisting of deoxyribose sugar, phosphate and base

Question 6

Phosphate

Answer 6

Part of a DNA nucleotide that forms part of the sugar-phosphate backbone

Question 7

Plasmid

Answer 7

Circular loop of genetic material found in prokaryotic organisms and some yeasts

Question 8

Prokaryotic cell

Answer 8

No nucleus 
No membrane bound organelles 
Single cell
Circular chromosomes 
Example: Bactria

Question 9

Eukaryotic cell

Answer 9

Membrane bound nucleus
Linear chromosomes (tightly coiled)
Single or multicellular
Examples: animal or plant

Question 10

Genetic info is coded to give the cell ability to?

Answer 10

Synthesise specific proteins that determine cells structure

Question 11

Adenine

Answer 11

Base pair that pairs with thymine

Question 12

Cytosine

Answer 12

Base pair that pairs with guanine

Question 13

Thymine

Answer 13

Base pair that pairs with adenine

Question 14

Antiparallel

Answer 14

Parallel Stands of DNA, run in opposite directions

Question 15

Base

Answer 15

The Coding Part of a nucleotide

Question 16

Chloroplast

Answer 16

Organelle where the chemical reactions of photosynthesis occur

Question 17

DNA

Answer 17

molecule that holds the genetic code in living organisms

Question 18

Yeast

Answer 18

Special eukaryote that contains plasmids

Question 19

Protein

Answer 19

Large molecule made up from a chain of amino acids liked by peptide bonds

Question 20

3 components that make up a nucleotide

Answer 20

Deoxyribose sugar, phosphate, base

Question 21

Shape of a DNA molecule

Answer 21

Double helix

Question 22

Animal and plant cells are

Answer 22

Eukaryotic

Question 23

Bacteria cells are

Answer 23

Prokaryotic

Question 24

Linear chromosomes are present in the nucleus of

Answer 24

Animal and plant cells

Question 25

Circular chromosomes are in the mitochondria of

Answer 25

Animal and plant cells

Question 26

Circular chromosomes are in the cytoplasm of

Answer 26

Bacteria cells

Question 27

Circular chromosomes are in the chloroplast of

Answer 27

Plant cells