Correlation between life span and the ability of fibroblasts to repair DNA in various mammalian species, Repair capacity is represented in autoradiography by the number of grains from radioactive thymidine per cell nucleus. According to graph, which factor exist on x-axis ? Note that the y-axis (life span) is logarithmic.

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#Question id: 15705

#Unit 12. Applied Biology

IAA or IBA auxins alone or in combination with a low concentration of cytokinin are important in the induction of

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#Question id: 944

#Unit 1. Molecules and their Interaction Relevant to Biology

Because they lack aspartate kinase and aspartate semialdehyde dehydrogenase, ________ cannot synthesize lysine, methionine or threonine.

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#Question id: 28061

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following force/Bonds contributes to protein stability  

a. van der Waals interactions

b. Ionic interaction

c. Hydrogen bond 

d. Di-sulphide bond

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#Question id: 12836

#Unit 2. Cellular Organization

The final layer of control that is critical in the regulation of CDKs is a family of proteins known as CDK inhibitors, or CKIs, which bind directly to the cyclin-CDK complex and inhibit its activity. Which of the following function not done by CKIs?

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#Question id: 23090

#Unit 12. Applied Biology

Which bacterium is capable of withstanding doses of radiation that are several times higher than human cells can tolerate?