TLS Online TPP Program

#Question id: 3885


AZT (3'-azido-2',3'-dideoxythymidine), used to treat HIV infection, acts in HIV-infected cells by:

#SCPH05 I Biotechnology
  1. blocking ATP production.

  2. blocking deoxynucleotide synthesis.

  3. inhibiting reverse transcriptase.

  4. inhibiting RNA polymerase II.

More Questions
TLS Online TPP Program

#Question id: 4321

#SCPH05 I Biotechnology

A genetic test to detect predisposition to cancer would likely examine the APC gene for involvement in which type(s) of cancer?

TLS Online TPP Program

#Question id: 18693

#SCPH01 Biochemistry

which of the following is incorrect about protein structure comparison?

TLS Online TPP Program

#Question id: 20106

#SCPH05 I Biotechnology

DS will be highest for the reaction

TLS Online TPP Program

#Question id: 7290

#SCPH06 I Botany

Following figure regarding to regulatory network in the Arabidopsis shoot meristem stem-cell niche.

A. The transcription factor WUS is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the CLV3.

B. The transcription factor CLV3 is synthesized in the cell A and moves via plasmodesmata into cell B, where one of its functions is to induce expression of the WUS.

C. Secreted CLV3 protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses WUS transcription.

D. Secreted WUS protein from cell B binds to the receptor protein kinase on the surface of cell A; there, it activates a signal that represses CLV3 transcription.

Which of the following combination is correct?

TLS Online TPP Program

#Question id: 8852

#SCPH28 | Zoology

The upper forelimbs of humans and bats have fairly similar skeletal structures, whereas the corresponding bones in whales have very different shapes and proportions. However, genetic data suggest that all three kinds of organisms diverged from a common ancestor at about the same time. Which of the following is the most likely explanation for these data?