Quiz Questions - Review Q1 Flashcards
Somatic cells are produced utilizing which of the following?
Mitosis
Trisomy 21 (Down Syndrome) is an example of ____.
Aneuploidy
What are the possible findings for someone with a balanced reciprocal translocation?
- No physical or health problems
- Increase risk for miscarriage
- Increased risk for a child w/ disabilities
(True/False) An individual with CML most likely has normal blood chromosome studies
True
What is required for the gain or loss of genes in the gametes of an individual that carriers a balanced inversion?
Crossing over
What are genes that are transcribed most likely to be located on a chromosome?
Light colored bands
What mechanism is used for cellular imprinting?
Methylation
What is the role of normal X-inactivation?
To insure the same amount of active genetic information from the X chromosome in males and females
The function of __% of genes is known
50%
(True/False) Exons are removed during transcription?
False
What is the primary role of translation?
Protein synthesis
Sam has Marfan syndrome (AD) and both his parents are normal. What is the chance Sam’s child will have Marfan syndrome?
50%
What term describes when a condition can range from mild to severe in the same family?
Variable expression
What term describes why 80% of individuals with a mutation in gene X will have symptoms and 20% will be asymptomatic?
Penetrance
What phenotype would you expect in an individual with gonadal mosaicism for the neurofibromatosis (MF) gene?
No clinical symptoms of the condition