Proteins targeted to non-matrix regions of mitochondria

a. contain a matrix-targeting signal if the destination is the outer membrane.

b. utilize a stop-transfer signal if the destination is the outer membrane.

c. always contain a matrix-targeting signal if the destination is the intermembrane space.

d. may require a chaperone for transport.

e. always move first to the matrix and then to their final destination.

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#Question id: 3339

#Unit 11. Evolution and Behavior

In a plant species, flower color locus either homozygous or heterozygous with genotype RR-red, Rr- pink and rr- white. The Proportional of pink flower in generation 0 is .50.  What is the level of remaining pink flower in a third generation of repeated selfing? 

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#Question id: 11258

#Unit 10. Ecological Principles

In order for mimicry to be effective in protecting a species from predation, it must

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#Question id: 10733

#Unit 10. Ecological Principles

According to the analysis of community structure in pitcher plants which of the following community attributes shows little responsiveness to the number of species in the community?

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#Question id: 15832

#Unit 8. Inheritance Biology

Your friends Ben and Jane are contemplating having children and seek your genetic counsel. Ben and Jane are unrelated, but both have younger brothers with the same, extremely rare genetic trait. (In fact, Ben and Jane met at a support group meeting for children and families of children with this rare disorder.) Ben’s parents and Jane’s parents are all unaffected.        

 Assume that the trait is autosomal dominant with 80% penetrance in heterozygotes and 100% penetrance in homozygotes. What is the probability that Ben and Jane’s first child will be affected? 

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#Question id: 1020

#Unit 4. Cell Communication and Cell Signaling

HIV/AIDS can be categorized as a new or emerging infectious disease. By putting it into this category, we are effectively saying that