In transcription-coupled repair (TC-NER) TFIIH, itself a large complex, which includes the products of two XP genes, XPB and XPD, which of the following is correctly representing the function of XPB and XPD

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#Question id: 19005

#Unit 13. Methods in Biology

If the molecule is non-polar which of the following chromatography can be used to analysed sample

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#Question id: 26462

#Unit 3. Fundamental Processes

Mutations in the -35 sequence can affect initial binding of

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#Question id: 12911

#Unit 13. Methods in Biology

Match the following:

A. DNA polymerases              i. Alkaline phosphatase        a.RNA-dependent DNA polymerase, used in cDNA synthesis

B. Reverse transcriptase        ii. T4 DNA ligase                    b. Thermostable DNA polymerase used in PCR

C. Ligases                                 iii.  AMV-RT                            c. Removes 5′-phosphates from DNA and RNA

D. Phosphatases                     iv. Taq DNA pol                      d. Links 5′-phosphate and 3′-hydroxyl ends via phosphodiester bond

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#Question id: 26821

#Unit 10. Ecological Principles

We can represent the relationship of species richness to area with the equation

Where S = number of species, and c and z are both constants

Which of the following is not a logical explanation to relationship of species richness to area?

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#Question id: 9285

#Unit 6. System Physiology – Plant

Non-O2-evolving (anoxygenic) organisms, contain only a single photosystem such as