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TLS Online TPP Program

#Question id: 767

With respect to how miRNAs work, which, if any, of the following statements, is false?

#SCPH05 I Biotechnology

  1. An miRNA is initially composed of two RNA strands, a passenger strand that will be destroyed and a complementary RNA, the guide strand, that is required for it to work.

  2. an active miRNA regulates target protein-coding genes by binding to complementary sequences in the mRNA

  3. A single miRNA normally binds to transcripts from just one target gene

  4. A single type of mRNA can be regulated by multiple different miRNAs.

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TLS Online TPP Program

#Question id: 14674

#SCPH05 I Biotechnology

How many moles of glucose are in 19.1g of glucose?
TLS Online TPP Program

#Question id: 14675

#SCPH05 I Biotechnology

How many pounds of NaOH are in 7.50 g mol of NaOH?
TLS Online TPP Program

#Question id: 14676

#SCPH05 I Biotechnology

An industrial-strength drain cleaner contains 5.00 kg of water and 5.00 kg of NaOH. What are the mass (weight) fraction and mole fraction of each component in the drain cleaner?
TLS Online TPP Program

#Question id: 14677

#SCPH05 I Biotechnology

The volumetric flow rate of carbon tetrachloride (CCI4) in a pipe is 50 cm3 min-1. The density of CCI4 is 1.6 g cm-3.

(i) What is the mass flow rate of CCI4?

(ii) What is the molar flow rate of CCI4 ?
TLS Online TPP Program

#Question id: 14678

#SCPH05 I Biotechnology

Pure chlorine enters a process. By measurement it is found that 2.4 kg of chlorine pass into the process every 3.1 min. Calculate the molar flow rate of the chlorine in kilogram moles per hour.
TLS Online TPP Program

#Question id: 14679

#SCPH05 I Biotechnology

Convert 100°C to (a) K, (b) °F, and (c) °R.