TLS Online TPP Program

#Question id: 2604


Best inducer of the lac operon;

#Unit 2. Cellular Organization
  1. IPTG (isopropyl b-D-1-thiogalactopyranoside)

  2. X-gal (5-bromo4-chloro-3-indolyl-b-D-galactopyranoside).

  3. Allolactose & IPTG

  4. Allolactose, IPTG & X-gal

More Questions
TLS Online TPP Program

#Question id: 18798

#Unit 13. Methods in Biology

which of the is a fluorescent dye with a flat, planar structure that slides between the rungs of (or intercalates into) the DNA ladder in a quantitative manner frequently used in FACS.

TLS Online TPP Program

#Question id: 13098

#Unit 13. Methods in Biology

You are a scientist who is using genomics to currently study a new bacterial species that no one has ever studied before. The following sequence is a piece of DNA within the coding region of a gene that you have recently sequenced.
 
How many of the 6 potential open reading frames are actually open in this sequence shown above?

TLS Online TPP Program

#Question id: 5217

#Unit 11. Evolution and Behavior

Multigene families include two or more nearly identical genes or genes sharing nearly identical sequences. A classical example is the set of genes for globin molecules, including genes on human chromosomes 11 and 16. How might identical and obviously duplicated gene sequences have gotten from one chromosome to another?

TLS Online TPP Program

#Question id: 12416

#Unit 10. Ecological Principles

A type I survivorship curve describes a population that has relatively

TLS Online TPP Program

#Question id: 26980

#Unit 10. Ecological Principles

Which of the following statements about the selection pressure is incorrect?

a.If survival of juveniles and adult is poor then selection favours a single act of reproduction

b.If survival of juveniles and adult is poor and unpredictable then selection favours repeated reproduction and long reproductive life

c.If the environment is stable then selection favours a single act of reproduction.

d.If survival of juveniles is very poor and unpredictable but adult are more likely to survive then selection favours repeated reproduction and long reproductive life

e.If survival of adult is unpredictable but juveniles are more likely to survive then selection favours a single act of reproduction