Mutations occur at the same rate in both exons and introns, but 

a) If unwanted mutations occur at exons they are conserved more effectively by selection

b) Exons are negatively selected when undergo mutation

c) Introns may more freely accumulate point substitutions and other changes due to no selection pressure. 

d) exon mutations are eliminated more effectively by selection.

Which of the above is true regarding introns and exons 

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#Question id: 17670

#Unit 9. Diversity of Life Forms

The following are common to both charophytes and land plants except 

TLS Online TPP Program

#Question id: 33985

#Unit 2. Cellular Organization

To analyze existing MARs that are bound to the matrix in vivo, what is correct order of method 

A. Chromosomal loops decondensed by extracting the chromatin proteins. 

B. Removal of the DNA loops by treatment with restriction nucleases

C. Amplification of MAR and sequencing

TLS Online TPP Program

#Question id: 11481

#Unit 7. System Physiology – Animal

Which of the following sensory receptors is correctly paired with its category?

TLS Online TPP Program

#Question id: 4376

#Unit 3. Fundamental Processes

Which of the following is the correct order of binding of general transcription factors to initiate transcription at RNA polymerase II promoters?

TLS Online TPP Program

#Question id: 1644

#Unit 4. Cell Communication and Cell Signaling

What is the single best defining feature of a lymphocyte?