nucleotides.
amino acids.
RNA molecules only.
DNA molecules only.
RNA and DNA molecules.
nucleotides.
amino acids.
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Which of the following yeasts is not pathogenic to humans?
A. Saccharomyces B. Cryptococcus C. Candida D. Saccharomyces and Cryptococcus
Which antibody class is found in exocrine secretions?
a. IgG b. IgA c. IgE d. IgD e. IgM
Compared with prokaryotic chromosomes, eukaryotic chromosomes are ________
A) large, linear, less densely packed with protein-coding genes, mainly organized in single-gene units with introns B) small, mainly organized in polygenic transcription units without introns C) large, mainly organized in polygenic transcription units without introns D) small, mainly organized in-single gene transcription units with introns E) large, mainly organized in single-gene transcription units without introns
Ribosomes are very small non-membranous organelles that can either exist freely in the cytoplasm or be embedded in the endoplasmic reticulum of a cell; they are associated with the synthesis of
a. lipids. b. proteins. c. nucleic acids. d. carbohydrates.