function of CR2

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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: 6949

#SCPH28 | Zoology

During gastrulation in Xenopus, the future mesoderm and endoderm move inside the embryo through the "blastopore"; in contrast, in chickens, gastrulation involves cells moving inward through the:

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#Question id: 19348

#SCPH01 Biochemistry

Nuclear gene rbcs encodes the smaller subunit of

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#Question id: 3855

#SCPH28 | Zoology

In eukaryotes, which of the following modifications is made to a primary transcript prior to its transport out of the nucleus?

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#Question id: 413

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

The hydrolysis of ATP has a large negative DG'°; nevertheless it is stable in solution due to: