Suppose that a researcher exposes a noninfective form of the bacterium Streptococcus pneumoniae to heat-killed cells of an infective strain. Which process of genetic exchange is most likely to occur between the strains?
a. conjugation
b. re-infection
c. transduction
d. transformation
Ans: d. transformation
Biology & Microbiology
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An allele is ____ if its effect masks that of a ____ allele paired with it
a. recessive; codominant b. codominant; recessive c. recessive; dominant d. dominant; recessive
e. incompletely recessive; dominant
Biology & Microbiology
HIV’s primary genetic instructions are in the form of ____
a. DNA b. RNA c. proteins d. amino acids e. DNA and RNA
Biology & Microbiology
All of the following are types of connective tissue EXCEPT which one?
A) bone B) cartilage C) blood D) muscle E) adipose
Biology & Microbiology
In three sentences or less, explain why a plant placed in a window grows toward the light. What will be an ideal response?
Biology & Microbiology