TLS Online TPP Program

#Question id: 17998


Eukaryotic mRNA species are isolated by using

#Unit 13. Methods in Biology
  1. paper chromatography
  2. affinity chromatography on resin columns
  3. by SDS PAGE gel chromatography
  4. affinity chromatography on oligo(dT)-cellulose columns
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TLS Online TPP Program

#Question id: 3537

#Unit 8. Inheritance Biology

What is the probability of two offspring in which one dominant phenotype and one recessive phenotype from the mating Aa × Aa?

TLS Online TPP Program

#Question id: 4021

#Unit 3. Fundamental Processes

Reporter genes employ fragments of DNA encoding proteins that when translated do not have any obvious effects in the cells and tissues. Which one of the following is NOT a reporter protein?

TLS Online TPP Program

#Question id: 7296

#Unit 5. Developmental Biology

some of the following statements regarding to this experiment are given below. Which of the following statements is incorrect?

TLS Online TPP Program

#Question id: 2881

#Unit 2. Cellular Organization

Depletion of a 2.2-kb noncoding RNA expressed from the HOXC locus by siRNA unexpectedly led to derepression of the HOXD locus on another chromosome encoding several Hox proteins and multiple other noncoding RNAs, in these cells. Assays similar to chromatin immunoprecipitation showed that this noncoding RNA, named HOTAIR, associates with the HOXD loci and with PRC2 complexes. This association results in

i. Histone H3K9 di- and trimethylation

ii. H2B monoubiquitinylation

iii. Histone H3K4 demethylation

iv. H2A monoubiquitinylation

v. Histone H3K4 methylation

vi. Histone H3K27 di- and trimethylation

Which of the following results is CORRECT regarding this association?

TLS Online TPP Program

#Question id: 24261

#Unit 2. Cellular Organization

Clock position of amino terminal tail of amino acid is fixed, so which of the following is correctly showing the position of H4