Ch. 1 Intro to Genetics (Exam 1)

Question 1

What is genetics?

Answer 1

Genetics is the science of genes, heredity, and variation in living organisms

Question 2

What is heredity?

Answer 2

Similarities between offspring, parents, and population

Question 3

What is variation?

Answer 3

Differences between offspring, parents, and population

Question 4

What 3 main biological aspects do genes control?

Answer 4

1) Biology itself
2) Disease
3) Recombinant DNA technology

Question 5

In which 4 ways do genes control biology itself?

Answer 5

1) Cell behavior
2) Organismal development
3) Physiology
4) Various complex traits (addiction, sexuality, etc.)

Question 6

How do genes affect infectious pathogens and us?

Answer 6

Genes affect all disease by having germs act on their own genes, and our body’s immune response depends on our genes

Question 7

What is the cause of genetic congenital diseases/disorders?

Answer 7

Faulty genes

Question 8

What are 4 good uses for recombinant DNA technology?

Answer 8

1) Genetically modified good
2) Transgenic medicine
3) Gene therapy/testing
4) Modelling organisms to study disease

Question 9

What are the 3 E’s of genetically modified food?

Answer 9

1) Enhanced flavor
2) Enhanced nutrients
3) Enhanced resistance (drought, disease, etc.)

Question 10

What was the contribution of Mendel?

Answer 10

Allelic dominance and recessivity

Question 11

What was the contribution of Watson and Crick?

Answer 11

The fact that DNA carries genetic information