Water is a polar molecule: the oxygen atom with its unshared electrons carries a partial negative charge (δ−) of ___________, and the hydrogen atoms each carry a partial positive charge (δ+) of __________, where e is the charge of the electron.

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#Question id: 13081

#Unit 13. Methods in Biology

Correct statements about RAPD’s

A. RAPD polymorphism is detected by using oligonucleotides usually more than 10 bases long of random sequences as primers in a reaction.

B. In a strain which has in genomic DNA sequences complementary to the primer oligonucleotide, PCR products will be detected in the gel,

C. Typical RAPD markers show limited variation between parents, especially in naturally inbreeding species.

D. RAPDs are more sensitive than RFLPs to experimental conditions making them more difficult to be consistent and reproducible.

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#Question id: 29061

#Unit 10. Ecological Principles

Ecological niche modelling is termed as

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#Question id: 1852

#Unit 4. Cell Communication and Cell Signaling

To which one of the following groups would it be acceptable to give a live attenuated viral vaccine?

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#Question id: 2349

#Unit 2. Cellular Organization

A liver cell would detect the presence of insulin by

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#Question id: 4160

#Unit 3. Fundamental Processes

Different tRNA molecules that bind the same amino acid are called __ tRNA molecules.