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TLS Online TPP Program

#Question id: 3750

Which of the following facts did Hershey and Chase make use of in trying to determine whether DNA or protein is the genetic material?

#XL - Q Biochemistry

  1. DNA contains sulfur, whereas protein does not.

  2. DNA contains phosphorus, whereas protein does not.

  3. DNA contains nitrogen, whereas protein does not.

  4. DNA contains purines, whereas protein includes pyrimidines.

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TLS Online TPP Program

#Question id: 5923

#General Aptitude

What day on 23/04/1990 ?
TLS Online TPP Program

#Question id: 5924

#General Aptitude

The calendar for the year 2008 will be the same for the year : 
TLS Online TPP Program

#Question id: 5925

#General Aptitude

On what dates of April, 2001 did Wednesday fall ? 
TLS Online TPP Program

#Question id: 6942

#XL - T Zoology

How long does embryonic development (before 1st instar larva hatches) take in this organism?
TLS Online TPP Program

#Question id: 6943

#XL - T Zoology

The portion of the blastoderm-stage embryo which will give rise to most ectodermal, mesodermal, and endodermal tissues is called the:
TLS Online TPP Program

#Question id: 6944

#XL - T Zoology

Which would lead to a dorsalized embryo? (Recall that genes in Drosophila are named for their mutant phenotype.