Pre-Release Article

Question 1

What are the 3 domain systems classified by Woese?

Answer 1

Bacteria
Archaea
Eukarya

Question 2

What is meant by the term phylogenetic tree?

Answer 2

A diagrammatic representation of the evolutionary relationship between different organisms.

Question 3

Which part of the brain is associated with memory loss?

Answer 3

The hippocampus

Question 4

What type of neurone is found mainly in the brain-signalling pathway?

Answer 4

Relay neurones

Question 5

Which part of the brain contains the thermoregulatory centre?

Answer 5

The hypothalamus

Question 6

What is meant by non invasive?

Answer 6

Not involving the introduction of instruments into the body.

Question 7

What are examples of non invasive techniques used to study brain development?

Answer 7

CT scans
MRI scans
fMRI scans
PET scans

These are beneficial over things such are cross culture and twin studies as they can study individual people rather than a widespread population, so more specific.

Question 8

What is the human genome project?

Answer 8

It was an international effort to:

Map and sequence the entire human genome
Determine the order of all 3.2 billion bases
Identify all genes, whilst understanding each of their functions

Question 9

What are the ethical issues associated with the human genome project?

Answer 9

If medication won’t work due to no suitable medication for the individuals genome, so no cure, this may be PSYCHOLOGICALLY DAMAGING
If research gives rise to new drugs, they will be initially very expensive and therefore likely to not be available to public healthcare. This creates a TWO TIER HEALTHCARE SYSTEM.
Patiently may be DISCRIMINATED AGAINST if insurance companies or workplaces have information that they are likely to develop incapacitating diseases, and may refuse them job offers or insurance.

Question 10

What is the definition of a tissue

Answer 10

A group of similarly structured cells, which work together in order to carry out a particular function.