In which phase does crossing over occur (where the homologous pairs exchange genetic information)?

A. Prophase I

B. Prophase II

C. Prophase III

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

Loss of protected health information collected for research should be directly reported to:

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated