You are a botanist who is immersed in your attempt to increase a certain property in your plant of study.  To that end, you induce a mutation that doubles the amount of vascular cambium (a type of meristem) in your plant.  Assuming this brings the desired effect, what exactly was the property that you sought to increase?

A. production of new leaves
B. production of only xylem to make wood
C. production of secondary xylem and phloem
D. production of bark only
E. production of new growth at the tip of stems


Answer: C

Biology & Microbiology

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Indicate whether the statement is true or false

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In the CAMP test a single streak of a beta-hemolytic streptococcus is placed perpendicular to a streak of beta-lysin-producing Staphylococcus aureus. After incubation a zone of increased lysis in the shape of an arrowhead is noted, which indicates the presumptive identification of ______________.

A. Streptococcus equines B. Streptococcus pyogenes C. Streptococcus bovis D. Streptococcus aggalactiae

Biology & Microbiology

The formulation Ca++Cl-2, indicates 

A. covalent bonding between one calcium atom and two chlorine atoms. B. one calcium ion that has gained two electrons and formed ionic bonds with two chloride ions that have each lost one electron. C. one calcium atom with two protons and two chlorine atoms that share one electron. D. one calcium ion that has lost two electrons and formed ionic bonds with two chloride ions that have each gained one electron.

Biology & Microbiology

Cladograms ________ true family trees.

A. are not B. are

Biology & Microbiology