Which is correct about DNA polymerase and RNA polymerase: A: RNA polymerases use nucleoside diphosphate instead of nucleoside triphosphate for synthesis of polynucleotide chains B: RNA polymerases need primer and add nucleotides in the 5 'end of the polynucleotide chain C: DNA polymerase can add nucleotides in both ends of the polynucleotide chain D: All of the RNA polymerases and DNA polymerases can only add nucleotides in the 3’ end of the polynucleotide chain

Which of the following descriptions about DNA and RNA polymerase are correct: A: RNA polymerase synthesize RNA chain using nucleoside diphosphate instead of nucleoside triphosphates. B: RNA polymerase can initiate transcription without a primer, and nucleotides are added to 5’ end of the growing RNA chain. C: RNA polymerase can add nucleotides in both 3’ or 5’ end of RNA chain. D: Both RNA polymerase and DNA polymerase can only add nucleotides to 3’ end of the polynucleotides.

Which<br/>is correct about DNA polymerase and RNA polymerase:() A: RNA<br/>polymerases use nucleoside diphosphate instead of nucleoside<br/>triphosphate for synthesis of polynucleotide chains B: RNA<br/>polymerases need primer and add nucleotides in the 5 'end of the<br/>polynucleotide chain C: DNA<br/>polymerase can add nucleotides in both ends of the polynucleotide<br/>chain D: All<br/>of the RNA polymerases and DNA polymerases can only add nucleotides<br/>in the 3’ end of the polynucleotide chain

A cell's _______ is the entire sequence of nucleotides in an organism’s DNA, which provides a genetic program that instructs the cell how to behave.

In order to package the 3x109 nucleotides of DNA into the nucleus, the DNA is wound around histones. These are proteins that bind to the DNA. The interaction of histones and DNA involves:

_________ are small molecules or proteins that are produced in one tissue, released into the bloodstream, and carried to other tissues, where they act through specific receptors to bring about changes in cellular activities. A: Sugars B: Hormones C: Lipids D: Nucleotides

The retrovirus genome consists of an RNA molecule (blue) that is typically between _______________ nucleotides in size. It is packaged inside a protein coat, which is surrounded by a lipid-bilayer envelope that contains virus-encoded envelope proteins. A: 5,000 and 10,000 B: 6,000 and 12,000 C: 7,000 and 12,000 D: 8,000 and 16,000

Simple<br/>set of rules for primer sequence design include( ) A: PCR<br/>primers should be 15-30 nucleotides in length. B: optimal GC content of the primer is 40%-60%. C: prefer one or two G or C at the 3’-end of primer. D: avoid primer self complementarities.

The correct statement about RNA polymerase and DNA polymerase is (1 point) A: Synthesis of polynucleotide chain using nucleoside diphosphate B: RNA polymerase requires primers and bases are added at the 5′-end of the extended polynucleotide chain C: DNA polymerase can only synthesize DNA using RNA as a template D: DNA polymerase can add nucleotides on both ends of a chain at the same time E: , DNA polymerase and RNA polymerase can catalyze the formation of 3',5'-phosphodiester bond