Susceptibility to Periodontal Diseases

Question 1

The magnitude and quality of tissue changes are determined by the bacteria, ________, and ______.

Answer 1

genetics
environmental modifier
(bacteria is necessary but not sufficient for disease)

Question 2

What is mendalian inheritance?

Answer 2

1:1 interaction (monogenic)

having a gene = show the phenotype

Question 3

Conditions caused by many contributing factors are called ______ disorders.

Answer 3

complex/multifactorial

Question 4

Describe phenotypes for a polygenic trait.

Answer 4

the will exist along a wide range (bell curve data)

Question 5

What is a chromosome disorder?

Answer 5

An abnormal condition due to something unusual in an individual’s chromosome; such as downs syndrome

Question 6

Describe the characteristics of a Complex Genetic model.

Answer 6

Traits are common in the population
No clear familial transmission
adult age onset
environmental factors
combines many genetic and environmental factors

Question 7

There are many genetic ______ associated with periodontitis.

Answer 7

polymorphisms

Question 8

True or False: A single gene polymorphism may be diagnostic for periodontitis.

Answer 8

False: it is not realistic to expect a single gene to be diagnostic for a complex genetic disease

Question 9

In a complex genetic disorder, each gene is _______.

Answer 9

individually small and cannot cause disease on its own

Question 10

In a complex genetic disorder, at what age is it typically evident?

Answer 10

adult

Question 11

True or False: Disorders within the Complex Genetic Model show clear familial transmission.

Answer 11

False