Practice Questions

TLS Online TPP Program

#Question id: 15231

Which of the following is true for Capillary electrophoresis (CE) resolution

#Unit 13. Methods in Biology

Capillary buffer flow take places from anode (+) to (-) cathode
Positive and negative sample molecules migrate at different rates.
Positively charged molecules reach the cathode first because the combination of electrophoretic migration and electro-osmotic flow causes them to move fastest.
Free solution method is the simplest and most widely practiced mode of capillary electrophoresis.

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TLS Online TPP Program

#Question id: 19241

#Unit 12. Applied Biology

The GUS gene encodes a stable enzyme that is not normally present in plants and that catalyzes the cleavage of a range of

TLS Online TPP Program

#Question id: 19242

#Unit 12. Applied Biology

The GUS activity in transformed plant tissues can be localized by the presence of a blue color that is formed after the hydrolysis of the uncolored substrate

TLS Online TPP Program

#Question id: 19269

#Unit 9. Diversity of Life Forms

The sporophytes of mosses depend on the gametophytes for water and nutrition. In seed plants, the reverse is true. From which seed plant sporophyte structure(s) do the immature (unfertilized) gametophytes directly gain water and nutrition?

TLS Online TPP Program

#Question id: 19270

#Unit 9. Diversity of Life Forms

the result of heterospory is

TLS Online TPP Program

#Question id: 19271

#Unit 9. Diversity of Life Forms

All of the following cellular structures are functionally important in cells of the gametophytes of both angiosperms and gymnosperms, except

TLS Online TPP Program

#Question id: 19272

#Unit 9. Diversity of Life Forms

The seed coat’s most important function is to provide