R7 photoreceptors develop normally in the developing eyes of Drosophila mutants that lack a functional Ras or Raf protein but express :

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#Question id: 18014

#Unit 13. Methods in Biology

Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get Atmost three correct answers

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#Question id: 143

#Unit 1. Molecules and their Interaction Relevant to Biology

Which amino acid is ideal for the transfer of protons within the catalytic site of enzymes due to the presence of significant amounts of both the protonated and deprotonated forms of its side chain at biological pH?

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#Question id: 4713

#Unit 11. Evolution and Behavior

A farmer uses triazine herbicide to control pigweed in his field. For the first few years, the triazine works well and almost all the pigweed dies; but after several years, the farmer sees more and more pigweed. Which of these statements explains why the pigweed reappeared?

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#Question id: 6563

#General Aptitude

Find the wrong number in the series : 24576, 6144, 1536, 386, 96, 24   

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#Question id: 4903

#Unit 8. Inheritance Biology

 In genetic maternal effect