If the ratio of areas of two squares is 225 : 256, then the ratio of their perimeter is :

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#Question id: 19291

#Unit 9. Diversity of Life Forms

Reptilian embryos are protected from desiccation by a leathery shell. Similarly, which pair of structures protects seed plantsʹ embryos and male gametophytes, respectively, from desiccation? 

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#Question id: 19292

#Unit 9. Diversity of Life Forms

Pollen tube is a part of___

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#Question id: 19293

#Unit 13. Methods in Biology

Choose the incorrect statement for the preparation of genomic libraries.

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#Question id: 19294

#Unit 13. Methods in Biology

The various steps for construction of libraries are ___________

i) Fragmentation of DNA

ii) Isolation of genomic DNA

iii) Amplification

iv) Ligation and introduction to the host

v) Vector preparation

The correct order of construction of libraries is (In the order of starting to ending).

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#Question id: 19295

#Unit 13. Methods in Biology

in genomic library To avoid ligation of separate DNA fragments, which of the enzyme is used?

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#Question id: 19296

#Unit 13. Methods in Biology

Which vectors carry the longest foreign DNA fragments?