The activin family, the bone morphogenetic proteins (BMPs), the Nodal proteins, the Vg1 family included in-

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#Question id: 15622

#SCPH01 Biochemistry

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: 1639

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

T-cell surface receptors for antigen partly recognize:

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#Question id: 10716

#SCPH06 I Botany

The stability of a food web in a community is quantified using certain parameters which are defined below. Which of the following is an CORRECT representation?

A. Community with more complex is more stable

B. Community with more number of alternate is more stable

C. Stability of community is inversely proportional to Connectance 

D. Community with higher value of dominax index is more stable

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#Question id: 8926

#SCPH06 I Botany

Sponges and cnidarians are among the fossilized animals found in both the Ediacara Hills and the Burgess Shale from the Rocky Mountains of British Colombia. This observation requires that

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#Question id: 6945

#SCPH01 Biochemistry

The portion of the Drosophila body plan which will produce the wing is called