If bacteria grow in the presence of a large amount of DNase, which of the following recombination process completely inhibited?

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#Question id: 15653

#SCPH01 Biochemistry

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. You have isolated a mutation that causes constitutive melibiase activity, which you designate MelA–. P1 phage mapping experiments using a Tn5 insertion linked to Mel1 show that MelA– is not linked to Mel1. Moreover you find that when an amber suppressor is introduced into a MelA– mutant, normal melibiase regulation is restored. Classify the MelA– mutation on the basis of genetic properties,  make a proposal for the type of regulatory functions affected by the MelA– mutation?

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#Question id: 3649

#SCPH06 I Botany

In eukaryotes, clusters (tandem arrays) of about 20–50 replicons initiate simultaneously at defined times throughout:

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#Question id: 1304

#SCPH28 | Zoology

Which of the following structures form cytoplasmic channels that connect adjacent plant cells through the cell walls?

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#Question id: 108

#SCPH05 I Biotechnology

Like plasmologens, sphingolipids are found in relative abundance in

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#Question id: 3513

#SCPH01 Biochemistry

RR- red, Rr- pink, rr- white flower color in plant. Pink flower plant allowed to repeated self fertilization up 3 generation. The proportional of pink flower is