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