The formation of a zygote and a cell with a triploid nucleus is unique to flowering plants. What is this process called?

A) fertilization
B) double fertilization
C) germination
D) pollination


B

Biology & Microbiology

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In agarose gel electrophoresis, DNA is visualized by ____

a. staining the gel with an agarose-binding dye so the gel, but not the DNA bands, fluoresces under UV light b. staining the DNA with a DNA-binging dye that fluoresces under natural light c. staining the DNA with X-gal so that the DNA bands appear blue d. staining the gel with a DNA-binding dye that fluoresces under UV light e. staining the gel with a DNA-binding dye that fluoresces under natural light

Biology & Microbiology

The west coast of Africa and South America in the tropics do not support corals. Which of the following would likely prevent coral growth in these areas?

a. cool northern flowing currents b. cool upwelling water c. depth of 25 meters d. both a and b

Biology & Microbiology

A ribosome has one binding site for mRNA and two binding sites for tRNAs

__________________ Indicate whether the statement is true or false.

Biology & Microbiology

Which of the following groups represents the basal lineage(s) of vertebrates?

a. Lancelets b. Tunicates c. Hagfish and lampreys d. Sharks and rays e. Coelacanths

Biology & Microbiology