Restriction enzymes are among the most useful tools for molecular biologists. They are examples of endonucleases. How do they differ from general endonucleases?
What will be an ideal response?
Ans: Restriction enzymes cleave the target DNA only at specific base sequences, unlike most endonucleases which cleave DNA randomly.
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A major, genetically determined change in the antigenic character of a pathogen is called antigenic drift.
Answer the following statement true (T) or false (F)
Which system involves plasma proteins activated
when an organism’s pattern receptors become bound to anything? a. cytokine b. complement c. suppressor d. enhancer e. coagulation
Salamanders are members of the order:a
Apoda. b. Caudata. c. Anura.
d. Tetrapoda. e. Squamata.
Which statement is TRUE?
A) The phosphotransferase system belongs to ABC systems. B) The phosphotransferase system transfers phosphate into the cell. C) The phosphotransferase system is a type of group translocation. D) The phosphotransferase system is a typical symporter. E) The phosphotransferase system hydrolyzes ATP to transfer Glucose.