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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?

#XL - Q Biochemistry

  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: 16112

#XL - T Zoology

Which of the following is not a heat generating mechanism?
TLS Online TPP Program

#Question id: 161

#XL - T Zoology

Two amino acids of the standard 20 contain sulfur atoms.  They are:
TLS Online TPP Program

#Question id: 8933

#XL - S Microbiology

At which developmental stage should one be able to first distinguish a diploblastic embryo from a triploblastic embryo?
TLS Online TPP Program

#Question id: 18380

#XL - S Microbiology

A commonly used municipal wastewater treatment to restart activated sludge bioreactors. Which technique is involved in this remediation process?
TLS Online TPP Program

#Question id: 10704

#XL - T Zoology

Imagine five forest communities, each with one hundred individuals distributed among four different tree species (W, X, Y, and Z). Which forest community would be most diverse?