In a pedigree chart, a male who demonstrates the trait being studied is represented by a ____

a. darkened square
b. darkened diamond
c. clear circle
d. clear square
e. darkened circle


ANSWER: a

Biology & Microbiology

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Bacterial endospores are produced by ________.

A. Mycoplasma B. Staphylococcus C. Entamoeba D. Bacillus

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Which of the following is NOT an example of sensory adaptation?

a. a loss of the sense of pressure of clothes against the skin b. adjustment to repeated jumping into a body of cold water c. response to lack of oxygen at high altitudes d. eventual loss of awareness of a constant noise e. the loss of the ability to smell a person's perfume or cologne after being in that person's presence for some time

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If an organism has a single copy of each chromosome, then it is

A. aneuploidy. B. diploid. C. haploid. D. tetraploid. E. polyploidy.

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When a mutation occurs during DNA replication, ____ replaces the incorrect nucleotide with the correct one after the

mismatched nucleotide has been removed. a. mismatch repair enzymes b. DNA ligase c. DNA polymerase d. telomerase e. helicase

Biology & Microbiology