Mendel's primary contribution to our understanding of genetic inheritance was
a. the idea that genes are found on chromosomes.
b. providing a mechanism that explains patterns of inheritance.
c. describing how genes are influenced by the environment.
d. determining that DNA contains information that codes for proteins.
e. None of the above
Ans: b. providing a mechanism that explains patterns of inheritance.
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In the digestive system of animals, proteins called amylases and proteases break down large molecules (for example, starches or proteins) into smaller ones so that they can be absorbed by the intestine
What category of protein function do these proteins fall into? A. Cell shape or organization B. Transport C. Movement D. Cell signaling E. Cell surface recognition F. Enzymes
Presuming that it takes several billion years of complex live to evolve in a stable environment, the stars most likely to currently have inhabited planets with favorable conditions for life are
a. G to K main-sequence stars. b. B to A main-sequence stars. c. G to K giants. d. white dwarf stars e. neutron stars.
The process of gluconeogenesis converts pyruvate or lactate into
A) sucrose. B) fructose. C) mannose. D) glucose. E) gluconate.
Which of the following contribute to the successful application of Koch's postulates?
A) the development of the compound microscope B) the theory of abiogenesis C) the ability to record the appearance of bacteria photographically D) the development of simple bacterial staining techniques E) the development of techniques for sterile transfer of bacteria