TLS Online TPP Program

#Question id: 2068


Which of the following molecules dramatically increases the rate of diffusion of water across cell membranes?

#Part-A Aptitude & General Biotechnology
  1. the sodium-potassium pump

  2. aquaporins

  3. gated ion channels

  4. ATP

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TLS Online TPP Program

#Question id: 18910

#Part-A Aptitude & General Biotechnology

is a lactose analog which is broken down by enzyme beta-galactosidase to give a product deep blue in colour.

TLS Online TPP Program

#Question id: 797

#Part-B Specialized Branches in Biotechnology

With respect to microRNAs, which, if any, of the following statements, is FALSE?)

A. MicroRNA genes often occur in gene clusters within introns of protein-coding genes and are usually transcribed by RNA polymerase II.

B. Like an mRNA a miRNA is initially produced as a larger precursor RNA that, like the great majority of mRNAs, usually has a 5’ cap and a poly(A) tail.

C. MicroRNAs are produced by germ-line cells only.

D. A miRNA is initially produced as a duplex RNA but in order to work it needs to be converted into a single-strand RNA.

E. MicroRNAs usually work as transcription factors.

TLS Online TPP Program

#Question id: 11459

#Part-A Aptitude & General Biotechnology

Partial or complete loss of hearing (deafness) can be caused by damage to the ________.

I) axons of the neurons associated with each hair cell that carry information to the brain

II) hair cells (the sensory receptors) in the cochlea

III) tympanic membrane, or eardrum

TLS Online TPP Program

#Question id: 2292

#Part-A Aptitude & General Biotechnology

which one is not function of Golgi apparatus,

TLS Online TPP Program

#Question id: 1588

#Part-A Aptitude & General Biotechnology

A patient reports severe symptoms of watery, itchy eyes and sneezing after being given a flower bouquet as a birthday gift. A reasonable initial treatment would involve the use of