21.5 - DNA Probes & Genetic Screening

Question 1

What is a DNA probe?

Answer 1

Short

Question 2

How is a DNA probe created?

Answer 2

Identify target allele

Question 3

What are the steps of screening DNA with a DNA probe?

Answer 3

Denaturation

Question 4

What are DNA microarrays?

Answer 4

Simultaneous screening of many genes using multiple probes

Question 5

How do DNA microarrays work?

Answer 5

Extract DNA

Question 6

What are applications of DNA probes in genetic screening?

Answer 6

Identify alleles

Question 7

What are the concerns about DNA probes?

Answer 7

Discrimination in insurance or employment

Question 8

What is genetic counselling?

Answer 8

Advice on implications of genetic disorders

Question 9

What does genetic counselling involve?

Answer 9

Discussing tests

Question 10

What are examples of genetic counselling?

Answer 10

BRCA1 mutation counselling

Question 11

What is personalised medicine?

Answer 11

Tailoring healthcare based on individual’s genetic makeup

Question 12

What is gene therapy?

Answer 12

Correcting genetic disorders

Question 13

How does gene therapy work?

Answer 13

Silencing dominant alleles