There are four alleles, A1, A2, A3 and A4 in equal abundance in frequency. Hardy-Weinberg equilibrium frequencies of the total heterozygote would be

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#Question id: 23181

#Unit 13. Methods in Biology

__________ type of biosensors exist to measure the concentration and location of Ca2+ and the activation state of GTPase switch proteins.

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#Question id: 1641

#Unit 4. Cell Communication and Cell Signaling

Why are secondary antibody responses better?

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#Question id: 15868

#Unit 12. Applied Biology

If the culture is kept in stationary phase for a prolonged period, the cells may die. Why?

a) due to the time taken for doubling of cell number

b) duration of a cell generation is too large, depending mainly on the plant species.

c) stationary phase is forced on the culture by a depletion of the nutrients

d) due to an accumulation of cellular wastes

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#Question id: 12357

#Unit 10. Ecological Principles

A uniform distribution is often the result of 

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#Question id: 2345

#Unit 2. Cellular Organization

An amoeba is engulfing bacterial cells by surrounding them with a pseudopod. This is an example of