The color of our hair is caused largely by a pigment called melanin

a. Eumelanin-black or brown

b. Pheomelanin-red or yellow

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#Id: 8621

#Unit 2. Cellular Organization

The Cip/Kip family members bind to cyclin-bound CDKs and block the activity of cyclin D-, E-, A-, and B-containing complexes.

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#Id: 2213

#Unit 11. Evolution and Behavior

Gradualism is Darwin’s proposition that the differences between even radically different organisms have evolved by small steps through intermediate forms,  not by leaps

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#Id: 2733

#Unit 12. Applied Biology

For the generation of transgenic plant in crop improvement, one important regulatory gene ‘X’ was overexpressed in a crop plant. Out of 30 transgenic rice plants generated, 22 showed high levels of gene ‘X’ expression. However, rest 8 lines displayed low level of expression. One explanation of such observation may be: 

Suppression effect of the transgene 

Knock down effect of gene X 

Gene silencing effect 

Co-suppression effect of transgene

 

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#Id: 9695

#Unit 4. Cell Communication and Cell Signaling

In the basal state, 

GAPs inhibit RalA and Rab10 function by enhancing their rates of GTP hydrolysis

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#Id: 10342

#Unit 4. Cell Communication and Cell Signaling