1.A scientist is studying a human disorder that may beattributable to a mutation in the mitochondrial DNA. Based on whatevidence the scientist believes this
A. Specific genetic mutation is observed
B. A rare parasitic disease is associated with his disorder
C. Maternal rather than Mendelian inheritance pattern isobserved
D. The ATP production is affected
2.Eukaryotic and bacterial DNA replication share many features,but eukaryotic DNA replication is more complex. What features ofeukaryotic DNA replication are not shared with bacteria?
A.Linear chromosomes
B. All answers are correct
C. DNA complexed with nucleosomes
D. Eukaryotic chromosomes contain multiple ORIs
3. Bacterial transformation involves DNA transfer to a recipientcell
A.By sexual reproduction
B.As naked DNA in solution
C.By cell-to-cell contact
D.By a bacteriophage
4. Mutations in the mitochondrial DNA can cause human disorders.What future approach involving nuclear transplantation might beavailable to treat mtDNA-based human disorders?
A.Mitochondrial swapping
B.Nuclear disintegration
C.Mitochondrial suppression
D.Nuclear Activation
5. During DNA replication
A. The two DNA strands separate, each strand then becomes atemplate for the assembly of a similar strand. Each new DNA helixhas one old strand with one new strand.
B. The two DNA strands separate, each strand then becomes atemplate for the assembly of a similar strand. Each new DNA helixhas two new strands.
C. The two DNA strands separate, each strand then becomes atemplate for the assembly of a complementary strand. Each new DNAhelix has one old strand with one new strand.
D. The two DNA strands separate, each strand then becomes atemplate for the assembly of an identical strand. Each new DNAhelix has one old strand with one new strand.
6. What is the function of RNA primase in DNA replication?
A.Provides a DNA primer
B. synthesizes RNA primer that provides a free 5′-OH upon which DNApolymerization depends
C. provides a free 3′-OH upon which DNA polymerizationdepends
D.
| | | provides a free 5′-OH upon which DNA polymerization depends |