Defects in the excision  repair process may result in : A. Mutations B. Okazaki fragments C. Excess DNA polymerase activity D. Shortened telomeres

Please explain right answer

Promotors are part of the DNA but enhancers are proteins that stick to the DNA   True or false

Which of the following is NOT common to all repair mechanisms? A. Detection of the lesion B. Removal of the damaged DNA sequence/ nucleotide/ base C. Removal of free radicals at the site of injury D. Repair of the lesion E. Involvement of enzymes in removing the lesion and/or repair of the damaged sequence/nucleotide/base.

List two specific causes of DNA mutations.  - environmental agents like ultraviolet light or ionizing radiation - chemicals

The DNA polymerase involved in base excision repair isa) DNA polymerase αb) DNA polymerase βc) DNA polymerase σd) DNA polymerase γ

Which of the following molecules has RNA-dependent DNA polymerase activity? A. DNA polymerase I B. DNApolymeraseIII C. RNApolymeraseD. LigaseE. Telomerase

A transversion mutation would be replacing T by:   a. C   b. T   c. either A or G   d. U

1. Scientists were able to develop transgenic bacteria that can be used for mercury remediation.  This process involved combining genes for mercury resistance (so that the bacteria itself has protection) and mercury accumulation (thereby allowing the bacteria to sequester Hg for retrieval later on). They probably used the following techniques in creating the transgenic bacteria EXCEPT a. plasmids b. DNA ligase c. DNA polymerase d. restriction enzymes   2. Consider these two parents (Mom and Dad) and their son, Calvin.  (see pic attached). Which two members of this family would show the greatest difference in their DNA profile?

Which of the following mechanisms is involved in double-strand DNA repair? a. Homology-dependent repair b. Nonhomologous end joining c. Mismatch repair d. A and B e. A, B, and C