DNA, Genes And Chromosones

Question 1

Who were the three scientists to discover DNA?

Answer 1

Francis crick, James watson and Rosalind Franklin.

Question 2

What does DNA stand for?

Answer 2

Deoxyribonucleic acid

Question 3

What is DNA composed of?

Answer 3

It is composed of two polynucleotide chains containing genetic information. There are pairs that are made up of the four nitrogenous gases and with that it makes a helix shape.

Question 4

What are the four nitrogenous gases?

Answer 4

Thymine, Guanine, Cytosine and Adenine

Question 5

When was DNA discovered?

Answer 5

1953

Question 6

What are short sections of DNA called and waht do they carry?

Answer 6

Genes. They carry the instruction (the code) for a charchteristic

Question 7

How many chromosones are in each normal person?

Answer 7

46

Question 8

How many pairs of chromosones are there

Answer 8

23

Question 9

How many individual chromosone come from your parents

Answer 9

23 father, 23 mother.

Question 10

What are the two ways of reproduction?

Answer 10

Sexually (animals) asexually (plants)

Question 11

How does sexual reproduction work?

Answer 11

The sperm from a man fusing with the egg from a woman

Question 12

How does asexual reproduction work?

Answer 12

Each offspring will be identical to the parent as it can reproduce on its own. Example: A Spider Plant reproduces on its own.