Molecular Biology Practice Test 8

1. Hybrid dysgenesis occurs in which of the following cases?

2. What changes occur in the chromosome to make it inactive?

3. Transposons were first discovered in ___________

4. Barr body is the ___________

5. Methylation of cytosine increases the transition mutation of cytosine to __________

6. The functional product of the Xist gene is ___________

7. De-novo methylation is done in the newly synthesized DNA strand at opposite positions of the methylated sites on the parent strand.

8. If the siRNA is a complete homolog of the target mRNA sequences what is the net result?

9. How many restriction sites are contained by a plasmid?

10. Direct repeats in the IS element are present __________