If a fair die is rolled 4 times, then what is the probability that there are exactly 2 sixes ?

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#Question id: 251

#Unit 1. Molecules and their Interaction Relevant to Biology

The rise and pitch of B-DNA are 0.33 nm and 3.40 nm, respectively. About how many helical turns are there in a fragment 1 mm in length?

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#Question id: 12447

#Unit 10. Ecological Principles

During exponential growth,

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#Question id: 23192

#Unit 13. Methods in Biology

The images imaged by conventional point-scanning confocal microscopy and by SIM, SIM improves resolution about 

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#Question id: 3805

#Unit 3. Fundamental Processes

A newly replicated DNA duplex is likely to have:

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#Question id: 28510

#Unit 5. Developmental Biology

which of the folllowing in turn function as positively feedback during limb bud formation?