1. A nonsense mutation is…
a) the creation of a different amino acid
b) the creation of a stop codon
c) a regulatory sequence
d) an AG splice acceptor site
2. Recombination occurs in meiosis is called…
a) Metaphase II
b) Prophase I
c) Metaphase II
d) Prophase I
3. Conditions show anticipation in paternal transmission is…
a) Cystic fibrosis
b) Fragile X syndrome
c) Huntington disease
d) Marfan syndrome
4. Exon skipping is…
a) silent mutations
b) RNA processing mutations
c) nonsense mutations
d) regulatory mutations
5. Cystic fibrosis mutation consists of…
a) a insertion
b) a substitution
c) a deletion
d) a duplication
6. Abnormality in the child with untreated phenylketonuria is the risk of…
a) 100%
b) 10%
c) 25%
d) 1%
7. Recombinant alpha-iduronidase is used for…
a) Pompe disease
b) Fabry disease
c) Gaucher disease
d) Hurler syndrome
8. Cancer cells…
a) avoidance of cell death
b) unlimited number of cell divisions
c) growth without external signals
d) none of these
e) all of these
9. Repeating units of nucleic acids is…
a) bases
b) sugar molecules
c) phosphate molecules
d) nucleotides
10. The presence of an extra digit is…
a) clinodactyly
b) polydactyly
c) arachnodactyly
d) brachydactyly
11. DNA requires…
a) Many enzymes
b) Sunlight
c) Protein synthase
d) Meiotic division
12. The nucleosome is…
a) Composed of RNA
b) Composed of DNA and RNA
c) Found in nucleus
d) Found in cell way
