Biological diversity - Topic 3

Question 1

What is DNA?

Answer 1

DNA= Deoxyribonucleic Acid

Blueprint, specific cells know where to go, organisms made in an specific way.

All living cells contain DNA, normally located in nucleus of cell

Question 2

How DNA discovered?

Answer 2

Canadian scientist Oswald Avery suggested that a Large molecule in the nucleus of cells store blueprint (aka DNA)

Question 3

Cells with no nucleus, where DNA?

Answer 3

Have DNA floating in cytoplasm

Question 4

DNA Structure

Answer 4

James Watson and Franco Crick are credited with figuring out the double helical (aka double helix) nature of DNA

Question 5

DNA structure- Double helix component

Answer 5

Combination of four difference chemicals knows as nucleotides

Question 6

Nucleotides

Answer 6

3 parts: deoxyribose (sugar), phosphate group, and nitrogen base

Question 7

Nitrogen base - 4 types

Answer 7

Guanine (G)
Cytosine (C)
Adenine (A)
Thiamine (T)

Form pairs in the nucleotide to create helix

Question 8

Pairs

Answer 8

G & C
A & T

Question 9

Chromosomes

Answer 9

DNA contains instructions for all organism’s charact pop as