Which of the following proteins will be most far away from the positively charged electrode during isoelectric focusing in a buffer with pH of 5?

#Question id: 11411

#XL - T Zoology

Vulnerability to extinction can be linked to species following characteristics. Which of the following statement are correct?

 A. Rare species are more prone to extinction than common ones.

 B. Species that are capable of migrating between fragments of habitat, such as between mainland areas and islands, may be more resistant to extinction

 C. Organisms that are specialists are more likely to go extinct

 D. Species with naturally long life spans may be more likely to become extinct

#Question id: 1690

#XL - Q Biochemistry

Which of the following statements is NOT TRUE of affinity?

#Question id: 12027

#XL - T Zoology

#Question id: 4596

#XL - S Microbiology

In a hypothetical environment, fishes called pike-cichlids are visual predators of large, adult algae-eating fish (in other words, they locate their prey by sight). The population of algae-eaters experiences predatory pressure from pike-cichlids. Which of the following is least likely to result in the algae-eater population in future generations?

#Question id: 1058

#XL - T Zoology

Phage-encoded enzymes are