DNA: THE CODE OF LIFE

Question 1

What is DNA

Answer 1

DNA is self-replicating material present in nearly all living organisms

Question 2

What is a eukaryotic cell

Answer 2

A cell that has a cell membrane

Question 3

What is a prokaryotic cell

Answer 3

Cell without a cell membrane

Question 4

What is a nucleus of a cell

Answer 4

A nucleus is a organelle that controls all metabolic cellular activities and transfers genetic material from parents to offspring

Question 5

An order from the outermost part list the six most important parts of a nucleus

Answer 5

1. Nuclear envelope
2. Nuclear pore
3. Nucleoplasm
4. Chromatin material
5. Nucleolus
6. Endoplasmic reticulum

Question 6

What is the plural form of one chromosome

Answer 6

Chromatin

Question 7

What structure joins two chromatids

Answer 7

A centromere

Question 8

What is a chromosome

Answer 8

A chromosome is a thread-like structure made up of protein and DNA

Question 9

What is the name of the protein that wraps up the DNA strands in the chromosome

Answer 9

Histones

Question 10

What is the function of the histones in the chromosomes

Answer 10

The histones provides structural support for chromosomes

Question 11

What lies on either side of a central zone

Answer 11

Chromatid

Question 12

What does chromatin material mainly consist of

Answer 12

Chromosomes

Question 13

What does a chromosome mainly consist of

Answer 13

Thread-like structures made of protein and DNA

Question 14

What are genes

Answer 14

small segments of DNA

Question 15

What are the main units of a nucleic acid called

Answer 15

Nucleotides or monomers

Question 16

List the three main nucleotides

Answer 16

1. Phosphates
2. Sugars
3. Nitrogenous bases

Question 17

Can the phosphates bond with the nitrogenous bases

Answer 17

No

Question 18

How do the three nucleotides Bond

Answer 18

Phosphate bonds with sugar and sugar bonds to the nitrogenous bases

Question 19

Draw the chemical compound adenine

Answer 19

(sharp extrusion)

Question 20

Draw the chemical compound Thymine

Answer 20

(sharp intrusion)

Question 21

Draw the chemical compound cytosine

Answer 21

(curved extrusion)

Question 22

Draw the chemical compound Guanine

Answer 22

(curved intrusion)

Question 23

In which order do the four nitrogenous bases Bond

Answer 23

Adenosine bonds with thymine and Guanine bonds with cytosine

Question 24

What do we call the links between adenine and thymine

Answer 24

Pyrimidines because they are short molecules

Question 25

What do we call the link between cytosine and guanine

Answer 25

Purines because they are long molecules

Question 26

What bond exists between the three nucleotides

Answer 26

Hydrogen Bond

Question 27

What are nucleic acids

Answer 27

Acids found in a nucleus

Question 28

Does DNA contain oxygen and sugar

Answer 28

No DNA does not contain oxygen but it does have sugar

Question 29

Does RNA contain oxygen and sugar

Answer 29

Yes Irene contains both oxygen and sugar

Question 30

What is the shape of a DNA molecule

Answer 30

Double Helix

Question 31

List the three types of DNA

Answer 31

1. Nuclear DNA
2. Chloroplastic DNA
3. Mitochondrial DNA

Question 32

Who was given credit for their credit on DNA research in 1953

Answer 32

Rosalind Franklin, Maurice Wilkins, James Watson and Francis Crick

Question 33

What is the shape of a DNA strand

Answer 33

Double spiral helix

Question 34

What type of sugar does DNA have

Answer 34

Deoxyribose sugar ( without oxygen)