what is the start codon
What will be an ideal response?
AUG
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How many hydrogen bonds are there between cytosine and guanine?
a. none b. one c. two d. three
A cell may meet the need for large quantities of a specific protein by all of the following EXCEPT :
a. continuously synthesizing the mRNA molecule that specifies that protein. b. increasing the half-life of the mRNA that specifies the protein. c. having multiple copies of the gene that codes for that protein. d. amplifying protein genes by DNA replication e. inhibition of DNA synthesis
Explain how dissolved sugar is transported in the phloem by means of a pressure gradient. What will be an ideal response?
A 6.85 kb EcoRI fragment of DNA is shown below. The location of several restriction sites is indicated. Scale is approximate.
©McGraw-Hill EducationIf you were to completely digest this fragment of DNA with PstI, how many pieces of DNA would you obtain?
A. 1 B. 2 C. 3 D. 4