Aresearch laboratory uses a cancer cell line that has undergone thousands of cell cycle divisions in the laboratory without any change in the length of its chromosomes. the cancer cell line is therefore likely to express high levels of rna polymerase. very low levels of telomerase. high levels of telomerase. dna polymerases with high fidelity. high levels of ligase activity.

Ry was studying two populations of the same species of lizards. one population lived on an island and the other lived on the mainland. both populations were affected by a hurricane that hit the island and the mainland with equal force. a year later, henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. which best describes a conclusion he might have reached? gene flow greatly affects small populations, but large populations can recover. genetic drift greatly affects small populations, but large populations can recover. gene flow greatly affects large populations, but small populations can recover. genetic drift greatly affects large populations, but small populations can recover.

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?