What are the two halves of a duplicated chromosome called?
A) alleles
B) centromeres
C) homologous chromosomes
D) sister chromatids
D
Biology & Microbiology
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Viruses are ______ -coated fragments of DNA or RNA.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
What kind of ecosystem are exotic species especially threatening to?
a) deserts b) marine ecosystems c) islands d) tropical forests
Biology & Microbiology
A solution is composed of one or more substances called ________ that are uniformly dispersed in a dissolving medium called a ________.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
All of the following are components of peptidoglycan EXCEPT
a. N-acetylglucosamine b. N-acetylmutamic acid c. lipopolysaccharide d. amino acids e. peptide cross-links
Biology & Microbiology