cry1 mutant causes_______

#Question id: 8924

#Unit 9. Diversity of Life Forms

#Question id: 14993

#Unit 4. Cell Communication and Cell Signaling

#Question id: 10991

#Unit 7. System Physiology – Animal

When recording lead I on an EKG, the right arm is the negative electrode, and the positive electrode is the

#Question id: 6978

#Unit 5. Developmental Biology

Removal of the apical ridge leads to

#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?