Which technique did Rosalind Franklin use to determine many of the physical characteristics of DNA?
a. scanning electron microscopy
b. transmission electron microscopy
c. recombinant DNA techniques
d. x-ray crystallography
e. DNA profiling
ANSWER: d
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Which of the following subatomic particles has appreciable mass and lacks a charge?
a. neutron b. element c. electron d. proton e. molecule
________ reasoning involves gathering facts that lead toward a logical generalized statement or conclusion
Fill in the blank(s) with correct word
Which microscope is used to see intracellular detail in a living cell?
A) fluorescence microscope B) two-photon microscope C) atomic force microscope D) transmission electron microscope E) brightfield microscope
At what stage is a mutation predicted to have the effect?
A) after the age of 60 B) during early embryonic development C) after birth but before puberty D) shortly after birth E) after puberty