Practice quiz content

Question 1

Which genetic diseases are caused by an increase in the number of nucleotides in the DNA of the affected gene or it’s upstream region?

Answer 1

Huntington disease and Fragile X Syndrome

Question 2

Which type of Down Syndrome results in a karyotype of 45 chromosomes?

Answer 2

Down Syndrome due to translocation

Question 3

What is the normal function of RB proteins?

Answer 3

Binds to protein E2F to prevent the cell from entering S phase

Question 4

What is the normal function of MLH1 proteins?

Answer 4

Corrects DNA base-pair mismatches

Question 5

What is the normal function of BRCA1 proteins?

Answer 5

repairs DNA or triggers apoptosis

Question 6

What is the normal function of VHL proteins?

Answer 6

controls angiogenesis

Question 7

What is the difference between DNA sequence mutations and epigenetic modifications?

Answer 7

epigenetics modifications can be reversed

Question 8

What does nondisjunction during gametogenesis refer to?

Answer 8

the failure of the chromosomes to separate during production of sperm and egg

Question 9

What does epigenetics play an important role in?

Answer 9

cellular differentiation, heterochromatin maintenance, and X chromosome inactivation

Question 10

Which hormones increase during ACUTE stress?

Answer 10

Epi and NE

Question 11

What hormone levels increase during prolonged stress?

Answer 11

Human growth hormone, cortisol, epi, glucagon, T3 and T4, NE

Question 12

What is the most commonly reported symptom of cancer treatment?

Answer 12

fatigue