Which of the following are the three most likely causes of gene mutation?
A. transposons
B. mutagens
C. DNA replication
D. All of the above
Answer: D. All of the above
You might also like to view...
A bacterium is found that can photosynthesize in the presence of light but uses hydrogen sulfide and releases elemental sulfur as a bi-product. This organism can best be classified as a
A. chemolithoautotroph. B. chemoheterotroph. C. photoautotroph. D. photoheterotroph. E. pathogen.
Cell walls and cytokines of bacteria are examples of the evolution of resistance to the host immune
response. ____________________ Indicate whether the statement is true or false.
Garrod hypothesized that "inborn errors of metabolism" such as alkaptonuria occur because _____
A) metabolic enzymes require vitamin cofactors, and affected individuals have significant nutritional deficiencies B) enzymes are made of DNA, and affected individuals lack DNA polymerase C) certain metabolic reactions are carried out by ribozymes, and affected individuals lack key splicing factors D) genes dictate the production of specific enzymes, and affected individuals have genetic defects that cause them to lack certain enzymes
Which one of the following is not a product of the lysosome?
A. Perioxidase enzyme B. Nitric Acid (NO) C. Cytokines D. Superoxide anion (O2-) E. Peptidoglycan-degrading enzyme