_______________ describe(s) the ability of a plant to grow throughout its life
a. Determinate growth
b. Indeterminate growth
c. Both determinate and indeterminate growth
d. Neither determinate nor indeterminate growth
B
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Rotifers obtain their food by the action of
(a) tentacles. (b) cilia on the wheel organ. (c) a muscular pharynx. (d) pseudopodia.
Bioterrorism is a term used to describe the act of using:
a. horrific events to deliver harm to living beings. b. microorganisms to harm the civilian pop-ulation intentionally. c. microorganisms to wage war in peacetime. d. living beings to wage war in peacetime.
The FtsZ gene in bacteria encodes an ancestral tubulin that is important in binary fission (the mechanism of cell division in prokaryotes). To study the FtsZ gene in eukaryotes, researchers made an FtsZ knockout in the moss What is true about this knockout plant?
A. The knockout plant is heterozygous for an abnormal FtsZ gene. B. The knockout plant does not produce any normal FtsZ protein. C. The knockout plant contains a copy of the bacterial FtsZ gene. D. The knockout plant makes bacterial FtsZ protein. E. The knockout plant makes half the normal amount of FtsZ protein.
In 1952, Hershey and Chase confirmed Avery's (1944) conclusion that
A. DNA is the repository for hereditary information. B. the replication of DNA is semiconservative. C. RNA is the repository for hereditary information. D. each DNA molecule is composed of two strands that are twisted into a double helix. E. proteins are the repositories for hereditary information.