This tissue gives pear flesh a gritty texture and makes seed coats hard:
a. xylem
b. collenchyma
c. phloem
d. sclerenchyma
e. parenchyma
d
Biology & Microbiology
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The positions of genes on a genetic map are marked according to
A) degrees. B) nanometers. C) radians. D) minutes.
Biology & Microbiology
Which of the following processes is responsible for the conversion of DNA information into messenger RNA?
a. replication b. transcription c. duplication d. translation e. any of these
Biology & Microbiology
How might a virus pick up a human oncogene?
a. Specialized transduction b. Transformation c. Reverse transcription d. Biosynthesis e. Viral conversion
Biology & Microbiology
Who developed a theory of evolution almost identical to Darwin's?
A) Lyell B) Wallace C) Aristotle D) Malthus
Biology & Microbiology