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#Question id: 3942


Which of the following statements is true of tRNAs?

#Unit 3. Fundamental Processes
  1. There are the same number of tRNA genes as there are different tRNAs.

  2. There are more tRNA genes than different tRNAs, and more tRNAs than amino acids.

  3. There are more different tRNAs than there are different triplet codons.

  4. There are the same number of tRNAs as there are amino acids.

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TLS Online TPP Program

#Question id: 147

#Unit 1. Molecules and their Interaction Relevant to Biology

Which structure below is appropriate for glycine at neutral pH?

TLS Online TPP Program

#Question id: 7253

#Unit 5. Developmental Biology

In drosophila, the segment polarity genes encode proteins that are constituents of the Wnt and Hedgehog signaling pathways. Which of the following is correct regarding to model for transcription of the segment polarity genes engrailed (en) and wingless (wg).

TLS Online TPP Program

#Question id: 19047

#Unit 13. Methods in Biology

Paper Chromatography is a physical method that is used to separate__________

TLS Online TPP Program

#Question id: 5733

#Unit 8. Inheritance Biology

In individuals heterozygous for a chromosome inversion, the homologous chromosomes form a loop in prophase I of meiosis.

Which of the following is effect of inversion?

A. A dicentric and an acentric chromosome in meiosis I as the chiasmata gets terminated when inversion includes centromere  

B. Appearance of deletion and duplication in both the cross over products chromosomes when centromere outside of inversion region  

C. All recombinant gamete are non-viable gametes when single crossing over within inverted region; irrespective to paracentric or pericentic inversion

D. Nonviable gametes are usually produced, resulting in a depression in observed recombination frequencies.

Which of the above statements are correct?

TLS Online TPP Program

#Question id: 5745

#Unit 8. Inheritance Biology

Consider a species with a diploid (2n) number of 16 chromosomes. How many chromosomes would be found in a trisomic body cell?