At what distance van-derwaals attraction exist ?

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#Question id: 5597

#XL - T Zoology

Mammalian sperm will migrate against the direction of the flow—using CatSper calcium channels (like sea urchin sperm) to sense calcium influx and monitor the direction of the current, this process is known as:

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#Question id: 2100

#XL - S Microbiology

Cholesterol, bile acids, ergosterol, and stigmasterol share all the following common structural features except

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#Question id: 10335

#XL - Q Biochemistry

plants can store high levels of nitrate, and they can translocate it from tissue to tissue without deleterious effect. Yet if livestock or humans consume plant material that is high in nitrate, they may suffer with,

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#Question id: 16489

#XL - T Zoology

The beginning of animal tissue culture can be traced when Arnold showed that 

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#Question id: 1549

#XL - S Microbiology

the decision to translate  IgM versus IgD  heavy chains is made at the level of?