Which of the following statements is false?
(a) A new RNA molecule can begin to be synthesized from a gene before the previous RNA molecule's synthesis is completed.
(b) If two genes are to be expressed in a cell, these two genes can be transcribed with different efficiencies.
(c) RNA polymerase is responsible for both unwinding the DNA helix and catalyzing the formation of the phosphodiester bonds between nucleotides.
(d) Unlike DNA, RNA uses a uracil base and a deoxyribose sugar.
Choice (d) is false. RNA nucleotides contain the sugar ribose.
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F+ strains of Escherichia coli
A) do not have an F factor. B) have the F factor as a plasmid. C) have an integrated F factor. D) transfer the F factor to recipient cells at a high frequency.
________ is the partial measure of the internal energy of a system, also known as the heat content
Fill in the blank with correct word.
How does the knowledge of complete genomes of different organisms help us in any way?
What will be an ideal response?
Which statement does NOT reflect what was presented in class about the standard treatment for DCIS types of breast cancer?
A. It likely benefits cancers that are HR- and HER2 +. B. Stadard treatment for DCIS is surgery and radiation/chemotherapy. C. Standard treatment for DCIS significantly reduces cases of invasive breast cancer. D. Radiation for DCIS cases may increase mortality .