Open reading frames (ORFs) are
1.mRNA molecules.
2.random DNA fragments.
3.possible protein coding regions.
4.cloning vectors.
5.a type of bacteriophage.
3
Biology & Microbiology
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Insertion of two bases into the coding region of a gene just after the start codon of a gene will result in
a ____ mutation.
a. missense b. chromosomal c. frameshift d. silent e. nonsense
Biology & Microbiology
Which structure or structures function to open and close the stomata?
a. cuticle b. mesophyll c. palisade cells d. guard cells e. chloroplasts
Biology & Microbiology
The only animal in which digestion occurs within cells is
A. cnidarians. B. sponges. C. flatworms. D. comb jellies.
Biology & Microbiology
__________ is when a species acquires traits that allow it to survive better in a particular environment.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology