Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 46452
TLS Online TPP Program

#Question id: 13041

Which of the following is incorrect about Data Collection? 

#SCPH06 I Botany
  1. The two-color microarray uses multiple dyes at times 
  2. The most common type of microarray protocol is the two-color microarray 
  3. The cDNAs are obtained by extracting total RNA or mRNA from tissues or cells and incorporating fluorescent dyes in the DNA strands during the cDNA biosynthesis 
  4. The expression of genes is measured via the signals from cDNAs hybridizing with the specific oligonucleotide probes on the microarray
More Questions
TLS Online TPP Program

#Question id: 2636

#I Life Science/ Life Sciences Group – I-V

Which of the following events occur when E. coli is starved for tryptophan?

I.  The ribosome translates leader peptide completely

II. Transcription reads through attenuator into trp EDCBA

III. Tryptophanyl tRNA is not formed

IV. A stem loop structure involving regions 3 and 4 is formed at attenuator site
TLS Online TPP Program

#Question id: 5564

#SCPH06 I Botany

At the moment of sperm penetration, human eggs ________.
TLS Online TPP Program

#Question id: 3454

#SCPH06 I Botany

Altruism is favoured when rb - c > 0 where c is fitness cost to altruist, b is fitness benefit to recipient; and r is genetic relatedness. It is under negative selection when
TLS Online TPP Program

#Question id: 834

#SCPH06 I Botany

How the proteosome inhibitors  are potentially used in treatment of cancerous cells ?
TLS Online TPP Program

#Question id: 10991

#SCPH06 I Botany

When recording lead I on an EKG, the right arm is the negative electrode, and the positive electrode is the