Which of the following has negligible mass?
a. atom
b. element
c. proton
d. neutron
e. electron
Ans: e. electron
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A laboratory in which Ebola virus is studied would be classified as a BSL-________ laboratory
A) 1 B) 2 C) 3 D) 4
Examine the pedigree in the accompanying figure. Individuals affected by the genetic condition in question are
indicated by filled squares or circles. Which inheritance pattern is most likely correct for this condition in this family?
a. autosomal dominant b. X-linked recessive c. X-linked dominant d. cytoplasmic inheritance e. autosomal recessive
In order to prove that a bacterium is pathological according to Koch’s postulates, the ____
a. bacteria must be present in most cases of the disease b. bacteria must be isolated from the infected host and grown in mixed culture c. specific disease must be induced when a pure culture of the bacteria is introduced into a healthy host d. bacteria must be isolated from a transfer host e. bacterium must produce spores that can be transmitted from one individual to another
Albinism, lack of pigmentation in humans, results from an autosomal recessive gene (a). Two parents with normal pigmentation have an albino child. What is the probability that their next three children will be albino?
What will be an ideal response?