Cell walls allow plant cells to build up large internal hydrostatic pressures called

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#Question id: 28646

#Unit 2. Cellular Organization

Which phases of cell cycle prevents reloading of MCM helicases? 

a) G1/S phase CDKs

b) S phase CDKs

c) G2/M phase CDKs

d) M phase CDKs

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#Question id: 15958

#Unit 12. Applied Biology

During the protoplast fusion which technique is most commonly used as it induces reproducible high frequency fusion accompanied with low toxicity to most cell types?

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#Question id: 15622

#Unit 13. Methods in Biology

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: 27406

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following enzymes that catalyze the hydrolysis of stored triacylglycerols, releasing fatty acids for export to sites where they are required as fuel

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#Question id: 23181

#Unit 13. Methods in Biology

__________ type of biosensors exist to measure the concentration and location of Ca2+ and the activation state of GTPase switch proteins.