Which is NOT a function of capsules or slime layers?
a. development and maintenance of biofilms
b. evasion of destruction by immune cells
c. attachment to solid surfaces
d. protection from osmotic lysis
Answer: D
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An alteration in the timing of a developmental event caused by a genetic mutation is called ________________.
Fill in the blank(s) with the appropriate word(s).
This phylum of seedless vascular plants has about 1000 known living species, including those in the
genera Lycopodium and Selaginella. The gametophyte of some of these species cannot photosynthesize, and instead uses mycorrhizae to obtain nutrients
a. Hepatophyta b. Pterophyta c. Bryophyta d. Lycophyta e. Anthocerophyta
Which of the following most accurately describes the process of DNA cloning?
a. set of laboratory procedures that consist of cutting a segment of DNA with restriction enzymes b. set of laboratory procedures that consist of isolating of a DNA fragment from a living organism and inserting it into a plasmid c. set of laboratory procedures that uses living cells to mass-produce specific DNA fragments d. set of laboratory procedures by which a DNA fragment is transferred from a living organism to a SNP chip e. the manipulation of DNA fragments in a laboratory using modern techniques of molecular biology
Secondary succession is likely to occur in
a. a burned forest. b. a shallow lake. c. an abandoned field. d. a burned forest and a shallow lake. e. a burned forest, a shallow lake, and an abandoned field.