Various forms that a single gene can take at a given locus are called
a. kinetochores.
b. alleles.
c. autosomes.
d. loci.
e. chromatids.
ANSWER: b
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A. annelids B. roundworms C. sponges D. cnidarians
Which is not one of the four atoms that make up the bulk of living organisms?
A) Oxygen B) Nitrogen C) Calcium D) Carbon
Chloroplasts are found only in eukaryotic cells that carry out photosynthesis: plants and algae. Plants and algae appear green as a result of the presence of chlorophyll. Where is chlorophyll located in the chloroplast?
(a) in the first, outer membrane (b) in the space between the first and second membranes (c) in the second, inner membrane (d) in the third, innermost membrane
Pattern baldness is a(n) ____ trait
a. X-linked b. Y-linked c. sex-linked d. sex-limited e. sex-influenced