A ________________ is a protective protein coat that surrounds the nucleic acid of the virus.
A. Capsid
B. DNA
C. Pathogen
D. Epidemic
Ans: A. Capsid
Biology & Microbiology
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The earliest RNA probably functioned in
A) catalysis. B) self-replication. C) both catalysis and self-replication. D) neither catalysis nor self-replication.
Biology & Microbiology
The evolution of prezygotic barriers to reproduction after postzygotic barriers already exist is called ____
a. species fusion b. reinforcement c. adaptive radiation d. geographic isolation e. hybridization
Biology & Microbiology
Amino acids are the building blocks for
a. proteins. b. carbohydrates. c. lipids. d. nucleic acids. e. most macromolecules.
Biology & Microbiology
Which molecules are involved in proteins synthesis?
a. rRNA, tRNA, mutagens b. transfer RNA, introns, and mutagens c. mRNA, introns, and ribosomal RNA d. mRNA, rRNA, and tRNA
Biology & Microbiology