Answer: a. tRNA
Explanation: The transference RNA is a nucleic acid that participates of the protein synthesis. tRNA is a small RNA with folding as a trefoil. The tRNA has a site where aminoacid is loaded and a anticodon site that is complementary to the codon in the mRNA, ensuring the proper aminoacid sequence in the resulting polypeptide.
Khan Academy is great! Also, Alison (it's a website) has some free courses as well.
Answer:
1,3,4
A dichotomous key uses questions or statements to help identify organisms, it also uses characteristics in it's questions ( that may be yes-no) and statements to help separate organisms from one another.
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Explanation:
Answer:
who was the first scientist to discover a cell when observing a tin section of deed cork under a crude compound microscope?
Robert Hooke!
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The vaccine used to prevent measles consists of live measles viruses. This type of vaccine is most likely <u>MMR vaccine</u>
MMR vaccine means Measles, Mumps, and Rubella vaccine.