Practice Questions

TLS Online TPP Program

#Question id: 767

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

#I Life Science/ Life Sciences Group – I-V

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.
an active miRNA regulates target protein-coding genes by binding to complementary sequences in the mRNA
A single miRNA normally binds to transcripts from just one target gene
A single type of mRNA can be regulated by multiple different miRNAs.

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TLS Online TPP Program

#Question id: 6967

#I Life Science/ Life Sciences Group – I-V

Gastrulation in sea urchins, Drosophila, and Xenopus all begin with a change in cell shape, in which the apical surface of an epithelial sheet contracts. This process is called:

TLS Online TPP Program

#Question id: 2265

#I Life Science/ Life Sciences Group – I-V

Passage through pores in the nuclear envelope is restricted primarily to

TLS Online TPP Program

#Question id: 5261

#SCPH28 | Zoology

Which of these statements about prokaryotes is correct?

TLS Online TPP Program

#Question id: 303

#I Life Science/ Life Sciences Group – I-V

Which condition favors the bond formation______