Chapter 1: Intro to Genetics

Question 1

What are the 3 main types of genetic disorders?

Answer 1

• Chromosome disorders
• Single gene defects
• Multifactorial inheritance

Question 2

gain or loss of genes in whole chromosomes or segments of chromosomes

• common
• half of all spontaneous abortions

Answer 2

chromosome disorders

Question 3

• individual mutant genes
• mutation present on one or both chromosomes of the pair
• rare

Answer 3

single gene defects

Question 4

• result from complex interactions between genetic and environmental factors
• responsible for the majority of diseases

Answer 4

multifactorial inhertiance

Question 5

What is a chromosome disorder?

Answer 5

gain or loss of genes in whole chromosomes or a segment of a chromosome

Question 6

What is a single gene defect?

Answer 6

a single gene or individual mutant gene