E. coli grows from 0.10 to 0.50 kg dry cell m^-3 in 1 h. How much time would be required to grow from 0.10 to 1.0 kg dry cell m^-3? You may assume exponential growth during this period 

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#Question id: 2299

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

_______ are plastids containing carotenoid pigments, and _______ are plastids containing starches.

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#Question id: 6950

#SCPH28 | Zoology

In mammalian development, the embryo will form from which population of cells?

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#Question id: 746

#SCPH05 I Biotechnology

Two separate chains of DNA are wound around each other, each following a helical (coiling) path, resulting in:

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#Question id: 15652

#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 in terms of its basic genetic properties, 

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#Question id: 3459

#SCPH28 | Zoology

A vampire bat sharing blood with another bat that is not its kin is an example of ________.