Cybrids or cytoplasmic hybrids are cells or plants containing

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#Question id: 9573

#SCPH06 I Botany

The energy of incident solar radiation reaching the surface of the earth declines toward the poles from its maximum in equatorial regions. One cause of this phenomenon is greater absorption of solar energy by the earth's atmosphere at high latitudes. Why is this?

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#Question id: 11635

#SCPH12 I Genetics

Given below, is the result of a complementation test for eight independent mutants (1 to 8).

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#Question id: 4141

#SCPH01 Biochemistry

Bacterial ribosomes:

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#Question id: 15654

#SCPH06 I Botany

You are studying a new strain of E. coli that can utilize the disaccharide melibiose very efficiently. You find that utilization depends on the enzyme melibiase, which is encoded by the gene Mel1. Mel1 is not expressed unless melibiose is present in the growth medium. Next you isolate a mutation, designated MelB–, which gives uninducible melibiase activity. Mapping experiments show that MelB– is linked to Mel1. Using an F' factor that carries the chromosomal region surrounding Mel1, you perform the following genetic tests:

                      

Describe the basic genetic properties of the MelB– mutation?

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#Question id: 10517

#I Life Science/ Life Sciences Group – I-V

plant–insect herbivore interactions releases three types of hormone including—