The inner (plasma) membrane of E. coli is about 75% lipid and 25% protein by weight.  How many molecules of membrane lipid are there for each molecule of protein?  (Assume that the average protein is Mr 50,000 and the average lipid is 750.)

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#Question id: 29020

#Unit 11. Evolution and Behavior

If the given proportionate contribution of genotypes to the population is  p2WFF=0.04,  2pqWFS=0.16,  q2WSS=0.16, then what will be the Relative genotypic frequency after selection:

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#Question id: 3258

#Unit 11. Evolution and Behavior

Which of the following incorrect about genetic drift

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#Question id: 7129

#Unit 5. Developmental Biology

What is the developmental pathway by which the hematopoietic stem cell gives rise to a macrophage?

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#Question id: 33452

#Unit 1. Molecules and their Interaction Relevant to Biology

For mixtures of nucleotides, a wavelength of 260 nm is used for absorption measurements for identification. Choose correct order of absorption spectra.

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#Question id: 31112

#Unit 2. Cellular Organization

Listeria is a food-borne pathogen that causes mild gastrointestinal symptoms. It enters animal cells and divides in the cytoplasm. Listeria has on its surface a protein called ActA, which mimics: