The shortest alpha helix segment in a protein that will span a membrane bilayer has about _____ amino acid residues.

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#Question id: 4906

#XL - T Zoology

Shell coiling is a maternal effect phenotype controlled by S gene where S is dominant dextral phenotype over s sinistral phenotype. Dextral coiling Ss male snail was cross with sinistral coiling ss female snail, The phenotype of progeny is 

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#Question id: 1695

#XL - Q Biochemistry

The processed peptide binding to the MHC class I groove:

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#Question id: 9262

#XL - R Botany

The kingdom Monera was dismantled because of which of the following reasons?

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#Question id: 8687

#XL - T Zoology

Your professor wants you to construct a phylogenetic tree of orchids. She gives you tissue from seven orchid species and one lily. What is the most likely reason she gave you the lily?

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#Question id: 20037

#XL - P Chemistry

Velocity of electron in the first orbit of H-atom is compared to that of velocity of light is approximately