Key Area 1.8

Question 1

What is genomic sequencing

Answer 1

Process where the exact order of the nucleotides can be determined for genes

Question 2

What is the study of genes/genomes called

Answer 2

Genomics

Question 3

What is bioinformatics and how is it used

Answer 3

Bioinformatics is used to work out how closely related two species are by:

Comparing the sequence of gene from each species

The more closely related the species, the more similar base sequences or genes they will have

Question 4

What is the difference between phylogenetic trees and a molecular clock

Answer 4

Tree: uses sequence data

Clock: uses fossil records

Question 5

Name the 3 domains of life

Answer 5

Bacteria
Archea
Eukaryotes

Question 6

Give a advantage and disadvantage of personal genomic

Answer 6

ADVANTAGE:
Predictive medicine - show your chances of getting a disease

Pharmacogenetics - shows how effective a drug will be on certain people by their DNA
Helps show the most effective medicine and dosage to use on a person

DISADVANTAGE:
Ethical issues as it may lead to genetic discrimination