12. in which phase of meiosis will sister chromatids separate and move to opposite ends of the cell?
a. anaphase ii
b. prophase ii
c. anaphase i
d. telophase i

Select all the true statements about the cosmic microwave background radiation

Drag each label to the correct location on the image. each label can be used more than once. a scientist introduced mutations in a gene sequence isolated from bacteria. study the sequence, and identify the steps where the mutations may affect the formation of proteins. in the sequence, black letters stand for protein coding regions and red letters stand for noncoding regions. protein will not be changed. protein may be changed. attcgtgttc atcgtgttc atcgtattc attcgtattc

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?