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
  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.

More Questions
TLS Online TPP Program

#Question id: 11906

#SCPH28 | Zoology

Which of the following changes would you expect to find after administering a vasodilator drug that caused a 50% decrease in afferent arteriolar resistance and no change in arterial pressure?

TLS Online TPP Program

#Question id: 11910

#SCPH06 I Botany

During succession species that colonize in early seral stages tend to have different life-history characteristics than those that colonize in later seral stages ;

A) Early seral stage in succession

B) Late seral stage in succession

 i) Good seed dispersal ability

ii) Lower plant efficiency in low light

iii) Seed dispersal  by animal

iv) Slower the resource acquisition

v) Found large biomass

vi) Seed longevity is long type

Which of the following is the correct prediction about early and the late successional seral stage?

TLS Online TPP Program

#Question id: 11910

#SCPH28 | Zoology

During succession species that colonize in early seral stages tend to have different life-history characteristics than those that colonize in later seral stages ;

A) Early seral stage in succession

B) Late seral stage in succession

 i) Good seed dispersal ability

ii) Lower plant efficiency in low light

iii) Seed dispersal  by animal

iv) Slower the resource acquisition

v) Found large biomass

vi) Seed longevity is long type

Which of the following is the correct prediction about early and the late successional seral stage?

TLS Online TPP Program

#Question id: 11911

#SCPH06 I Botany

Michael Moulton and Stuart Pimm (1986) showed how the success of birds introduced to Tahiti or the Hawaiian Islands was dependent on the morphology of the species already present , find out the correct graph represents, morphological differences and the probability of invasion success ;

TLS Online TPP Program

#Question id: 11911

#SCPH28 | Zoology

Michael Moulton and Stuart Pimm (1986) showed how the success of birds introduced to Tahiti or the Hawaiian Islands was dependent on the morphology of the species already present , find out the correct graph represents, morphological differences and the probability of invasion success ;

TLS Online TPP Program

#Question id: 11912

#SCPH06 I Botany

The success of birds introduced to Tahiti or the Hawaiian Islands was dependent on the morphology of the species already present. If there was a small morphological difference in bill length between the resident and introduced species, then