Which of the following is not a major class of growth factors?

A. Nucleic acids
B. Amino acids
C. Purines and pyrimidines
D. Vitamins


Answer: A

Biology & Microbiology

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What cell is haploid?

A. oogonium B. zygote C. primary oocyte D. ovum E. spermatogonium

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Which trait is least likelyto be shared between green algae and land plants?

a. presence of stomata b. chloroplasts with chlorophyll a c. cellulose in their cell walls d. store energy captured during photosynthesis as starch e. chloroplasts with chlorophyll b

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SNPs are derived from ________.

A. frameshift mutations B. gene therapy C. point mutations D. genetic engineering

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Gross primary productivity is the rate of photosynthesis minus the rate of plant respiration

____________________ Indicate whether the statement is true or false.

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