What is the differential reproduction of genotypes, resulting from their variable fitness?
A) genetic drift B) selection C) evolution D) discrimination
Answer: B
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Viruses variously depend on their host cell for parts of the viral replication and maturation process. Many viruses do however encode for some enzymes that facilitate certain steps or virus-specific processes for viral replication and maturation
Which cellular processes and enzymes do ALL viruses lack and must therefore ALWAYS be supplied by the host cell? What will be an ideal response?
Which of the following is one of Chargaff’s
rules?
a. different organisms have different DNA sequences b. the DNA molecule is a double helix c. the two strands in a DNA molecule run in opposite directions d. the backbone of a DNA molecule is on the outside e. all of these are Chargaff’s rules
Extracellular coagulation is detected using which of the following
A. slide coagulase B. tube coagulase C. staphaurex test D. all of the above
Frederick Griffith discovered
A. transformation. B. transposons. C. the lac operon. D. DNA. E. conjugation.