For a trait known to be caused by a mitochondrial gene variant, there may be an occasional female that can transmit different phenotypes to her progeny on an apparently random basis. What situation might you suspect?

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#Question id: 15366

#Unit 4. Cell Communication and Cell Signaling

For pro-proliferation signaling pathways to cause uncontrolled proliferation, as is seen in cancer, this p53 up-regulation must not occur, It is therefore not surprising that p53 is inactive in most human tumors through loss of p53 function itself, down-regulation of positive regulators (PR) of p53 or up-regulation of negative regulators (NR) of p53, these regulators are accordingly

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#Question id: 14086

#Unit 1. Molecules and their Interaction Relevant to Biology

The proportion of Major groove in A-DNA is 

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#Question id: 23707

#Unit 13. Methods in Biology

Which of the following separates molecules by movement due to size and electrical charge?

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#Question id: 26508

#Unit 3. Fundamental Processes

Which of the following are true regarding the splicing of tRNA 

a.RnaseP cuts at 5’ end 

b.RnaseD cuts at 3’ end 

c.Base modification followed by CCA addition by specific polymerase

d.And then final script of 78 bp formed

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#Question id: 11562

#Unit 7. System Physiology – Animal

The relationship between the insect hormones ecdysteroid and PTTH is an example of ________.