In angiosperms, but not conifers, pollen grains can form pollen tubes
Indicate whether the statement is true or false
FALSE
Biology & Microbiology
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You discover a new fluorescent protein that emits photons with a wavelength of 600 nm. Which of the following wavelengths of light might excite the protein?
A) 455 nm B) 590 nm C) 550 nm D) all of the above
Biology & Microbiology
Which of the following junctions influences the passage of ions and small molecules between cells?
a. tight b. adhering c. gap d. loose e. plasma
Biology & Microbiology
Translation is the first stage of gene expression.
a. true b. false
Biology & Microbiology
Human DNA and chimpanzee DNA differ by
A) about 1%. B) about 3%. C) more than 10%. D) the same amount that human DNA differs from orangutan DNA.
Biology & Microbiology