In mevalonic acid pathway, three molecules of acetyl-CoA are joined together stepwise to form mevalonic acid, which intermediate steps it will perform to yield isopentenyl diphosphate (IPP2)?

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#Question id: 1301

#Unit 4. Cell Communication and Cell Signaling

The cell walls of bacteria, fungi, and plant cells, and the extracellular matrix of animal cells are all external to the plasma membrane. Which of the following characteristics are common to all of these extracellular structures?

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#Question id: 33363

#Unit 1. Molecules and their Interaction Relevant to Biology

An antibody binds to an antigen with a Kd of 5 X10^-8 M. At what concentration of antigen will θ be 0.2

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#Question id: 7496

#General Aptitude

A goods train runs at the speed of 63 km/h and crosses a 250 m long bridge in 28 s, what is the length of the goods train?

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#Question id: 7077

#Unit 5. Developmental Biology

In the zygote, the cortical cytoplasm rotates about 30º with respect to the internal cytoplasm, this exposes a region of inner cytoplasm directly opposite the sperm entry point. This region is called as:

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#Question id: 16147

#Unit 4. Cell Communication and Cell Signaling

 Which statement is not true for Natural killer (NK) cells?