Individuals with the disorder xeroderma pigmentosum are hypersensitive to sunlight, and mutations to the DNA in their skin cells are left uncorrected. Why are the mutations not corrected in individuals with this disorder?

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#Question id: 11798

#Section 6: Plant, Animal and Microbial Biotechnology

Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;

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#Question id: 3024

#Section 2: General Biology

In a rapidly multiplying bacterial population, cell numbers increase

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#Question id: 15640

#Section 1: Engineering Mathematics

The value of the determinant  

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#Question id: 15913

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

The Smith-Waterman algorithm was developed for 

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#Question id: 21732

#Section 5: Bioprocess Engineering and Process Biotechnology

Rate constants for the first-order decomposition of acetonedicarboxylic acid

CO(CH2COOH)2(aq) → CO(CH3)2(aq) + 2 CO2(g)

are k = 4.75 ×10^–4 s^–1 at 293 K and k = 1.63 ×10^–3 at 303 K. What is the activation energy, Ea, for this reaction?