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(a) List the necessary steps to create a recombinant DNAmolecule.(b) List the necessary steps to create a cloned molecule
If repressor tetramer uses only two of its subunits to bind to an operator sequence, why is tetramer formation so important to the control of lac operon gene expression.
Which protein complex directs DNA bending into loops that contact RNA polymerase and transcription factors bound at the core promoter or with protein complexes bound to proximal promoter elements? Which part of the lac operon is cis-dominant?
There are two general mechanisms of miRNA/AGO complexes. If miRNAs are fully complementary with mRNAs, AGO can cleave these targets. If there are mismatches between the middle positions of miRNAs and their targets, then the miRNA/AGO complexes can..
A Texas genetics compant recently issues a press release claiming to have sequenced the genome of Bigfoot. Supposedly, the mitochondrial DNA sequence is identical to that of modern Homosapies.
Why don't bacteria (escpecially motile forms) grow throughout an agar medium, which is 97% water?
Select the optimal temperature for enzyme function observed. Note you will have to create your own graph or log in the milliliters of gas bubbles produced on your own to answer this question.
Lectins are proteins or glycoproteins that cause cells with suitable surface receptors to stick or clump together. Clumping depends on cell and lectin numbers in proper ratios.
What two groups of organisms live symbiotically to form lichens? Of what benefit are mycorrhizal fungi to plants? How does this symbiotic relationship benefit the fungus.
Of which two proteins do vertebrate hemoglobins consist? i - trypsinogen ii - alpha globin iii - beta globin iv - antifreeze glycoprotein v - myoglobin a. i & ii b. i & iv c. ii & iii d. iii & iv e. iii & v
Discuss the difference between DNA methylation and histone methylation? I understand that both include the repression of genes and that DNA methylation occurs at CpG islands.
Explain the concept of separation of germline and soma (2). Explain how this concept changed our understanding of the evolutionary significance of the inheritance of acquired characteristics (3).
the alpha chain of a eukaryotic hemoglobin is composed of 141 amino acids. what is the minimum number of nucleotides in an MRNA coding for this polypeptide chain?
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