Black widowbirds can be described as medium-sized birds with orange and white shoulders
and showy tail feathers. This is __________.
a. their phenotype
b. a description of their adaptations
c. their genome
d. an example of their alleles
A
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While a mutation will not always change the phenotype of an individual, it will always change the genotype
A. true B. false
The enzyme nitrogenase is rather unique, as it specifically functions:a
in the absence of oxygen. b. in the absence of nitrogen. c. in the absence of carbon dioxide. d. in the presence of oxygen. e. in the presence of carbon dioxide.
All of the following represent anchoring junctions EXCEPT
A. tight junctions. B. focal adhesions. C. desmosomes. D. adherens junctions. E. hemidesmosomes.
What is the most common way of introducing recombinant DNA into bacterial cells?
A) gel electrophoresis B) PCR C) transformation D) viral vectors