In the initial phase of glycolysis, each hexose unit is phosphorylated twice and then split, producing two molecules of triose phosphate, in these reactions included irreversible reaction. How much irreversible reaction is performed in the glycolytic pathway through in this series of reactions?

#Question id: 10949

#Unit 7. System Physiology – Animal

Which of the following applies to AIDS patients?

#Question id: 4949

#Unit 11. Evolution and Behavior

What probably accounts for the switch to DNA-based genetic systems during the evolution of life on Earth?

#Question id: 11405

#Unit 10. Ecological Principles

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

A. Endemism species are more prone to extinction than fragmented

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. Population variability species are less prone to extinct

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

#Question id: 13146

#Unit 8. Inheritance Biology

#Question id: 5828

#Unit 8. Inheritance Biology

__ are chemical fluctuations where hydrogen atoms move from one position to another, such as from one position in a purine to another.