Close examination of the yucca-yucca moth mutualism has shown that what appear to be coevolved traits may have been __________ that were critical to the establishment of the mutualism in the first place.

#Question id: 43

#Unit 1. Molecules and their Interaction Relevant to Biology

If 10 g of ice at 0°C is converted to water at the same temperature, the change in entropy will be- (latent heat 80 cal/g

#Question id: 350

#Unit 1. Molecules and their Interaction Relevant to Biology

Cohesion, surface tension, and adhesion are the properties of water molecules that ________.

#Question id: 1478

#Unit 4. Cell Communication and Cell Signaling

Caspases are different on the basis of:

#Question id: 5083

#Unit 5. Developmental Biology

Which of the following correctly displays the sequence of developmental milestones?

#Question id: 10791

#Unit 6. System Physiology – Plant

Following are certain statements regarding furanocoumarins;

 a) furanocoumarins have an attached furan ring

 b) These compounds are toxic until they are activated by sunlight in the ultraviolet A (UV-A) region (320–400 nm)  

 c) Light activated furanocoumarins can insert themselves into the double helix of DNA and bind to the pyrimidine bases, thus blocking transcription and repair and leading eventually to cell death   

 d) Phototoxic furanocoumarins are especially abundant in members of the Umbelliferae family, including celery, parsnip, and parsley.

 Which of the following combination from the above statements is correct?