In which interval of interphase is DNA duplicated?

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#Question id: 4154

#SCPH05 I Biotechnology

How many possible codons (of normal size) are possible using the bases found in DNA?

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#Question id: 15622

#SCPH28 | Zoology

9 In your study of a new bacterial species you have identified a transducing phage that you call Px. In addition you have worked out methods to make random transposon insertions into the bacterial genome. You have generated two different transposon insertion collections one with 105 random Tn5 (Kanr) insertions and the other with 105 random Tn10 (Tetr) insertions. You grow Px phage on the mixed collection of Tn5 insertions and use the resulting phage lysate to infect the mixed collection of Tn10 insertions. You select 10,000 Kanr  transductants and find that 80 of them are Tets. Use this information to estimate the total size of the bacterial genome assuming that both Tn5 and Tn10 insert randomly and that the average size of a fragment recombined into the recipient genome during Px transduction is 55 kbp. (Tn5 is about 5 kbp and Tn10 is 10 kbp.)

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#Question id: 10708

#SCPH28 | Zoology

Which of the following statements is a likely explanation for why invasive species take over communities into which they have been introduced?

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#Question id: 43

#SCPH01 Biochemistry

If 10 g of ice at 0°C is converted to water at the same temperature, the change in entropy will be- (latent heat 80 cal/g

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#Question id: 5304

#SCPH28 | Zoology

Bioinformatics includes ________.

I. using computer programs to align DNA sequences

II. creating recombinant DNA from separate species

III. developing computer-based tools for genome analysis

IV. using mathematical tools to make sense of biological systems