Within a gymnosperm megasporangium, what is the correct sequence in which the following should appear during development, assuming that fertilization occurs? 

1. Sporophyte embryo 2. female gametophyte 

3. egg cell                 4. megaspore 

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#Question id: 16496

#XL - T Zoology

Neomycin phosphotransferase  gene is used as a selectable marker. It provides resistence against which antibiotic ?

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#Question id: 16496

#XL - R Botany

Neomycin phosphotransferase  gene is used as a selectable marker. It provides resistence against which antibiotic ?

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#Question id: 16497

#XL - R Botany

Which vir gene act as an endonuclease and helps to nick the right border

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#Question id: 16498

#XL - R Botany

Chromosomal gene of agrobacterium needed for an optimal expression of vir genes of pTi

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#Question id: 16569

#XL - Q Biochemistry

Eukaryotic mRNA extraction, can be done by using which of the following columns in affinity chromatography 

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#Question id: 16570

#XL - Q Biochemistry

Agarose gels are used for the electrophoresis of