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TLS Online TPP Program

#Question id: 2628

Choose true statement about lac repressor;

#XL - R Botany

  1. Lac repressor binds as a dimer.

  2. located 400 bp downstream and 90 bp upstream of the primary operator.

  3. Each operator is contacted by only one of these subunits.

  4. The different oligomeric form alters the mechanism of DNA recognition.

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TLS Online TPP Program

#Question id: 14736

#XL - S Microbiology

In basal structure of flagella of gram positive bacteria?
1. L
2. P
3. S
4. M
Which combination is not found in above bacteria? Choose the option with both incorrect rings.
TLS Online TPP Program

#Question id: 4992

#XL - S Microbiology

The existence of the phenomenon of exaptation is most closely associated with which of the following reasons that natural selection cannot fashion perfect organisms?
TLS Online TPP Program

#Question id: 12941

#XL - S Microbiology

Name the therapeutic protein which has been used to successfully treat certain types of breast cancer.
TLS Online TPP Program

#Question id: 2680

#XL - T Zoology

What is alphoid DNA?
TLS Online TPP Program

#Question id: 10234

#XL - T Zoology

You observed the two species of barnacles, species 1 and species 2, occupy upper and lower strata of intertidal rocks, respectively. Only when species 1 was removed by you from the upper strata, species 2 could occupy both the upper and lower strata. From the choice given below what would be your inference from these observations.