which type of amino acid in polypeptide position 9 is favoured interaction which MHC class 1?

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#Question id: 3261

#SCPH06 I Botany

A parent population (P) is change into daughter populations (Q) which grow in habitats. After 1000 generations, the equilibrium frequency distribution of of the daughter populations is shown in the figure below. For reference, the vertical line represents the mean of the parent population. Which type of natural selection?

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#Question id: 12728

#SCPH01 Biochemistry

Name the type of RNA which folds up to give a cloverleaf secondary structure.

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#Question id: 1130

#SCPH01 Biochemistry

In muscle cells, glycogen phosphorylase kinase is activated by

a. Ca2+.           b. diacylglycerol.   c. nitric oxide.       d. protein kinase A.    

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#Question id: 1407

#SCPH28 | Zoology

Which of the following is pro-apoptotic?

a. Bax              b. Bcl-2                       c. p53              d. protein kinase B      e. PTEN

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#Question id: 3879

#SCPH01 Biochemistry

Which of the following is not usually essential for the catalytic activity of ribozymes?