Biology, 20.12.2019 03:31 sierram298
Carcinogenesis requires that a single cell or one of its descendents undergo a series of rare genetic and epigenetic changes that permanently alter the expression of at least five to eight genes. thus, it is not surprising that many cancer cells assayed in cell culture dishes were found to have a very high rate of mutagenesis. (15 points)a. what are three systems that are often defective in cancer cells whose role is to ensure the integrity of the genome? b. the increased mutation rate speeds cancer progression by increasing the likelihood that a cell will acquire additional properties that contributes to carcinogenesis. name four of the eight typical properties of cancer cells. c. uv and ionizing radiation are known to cause cancer because they are mutagens that damage dna. how, then, are the many anticancer therapies that act by damaging dna, including ionizing radiation and many drugs, so effective at shrinking tumors?
Answers: 1
Biology, 22.06.2019 03:30, crispingolfer7082
State officials are considering constructing a road through a forested wilderness area. this action will likely affect the forest ecosystem in various ways. part a: predict how the construction of a road could negatively affect plants and animals in that ecosystem. (3 points) part b: describe one way that the construction of a road could have a positive impact of the forest ecosystem. (1 point)
Answers: 1
Biology, 22.06.2019 07:00, revlonknox6
Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass
Answers: 2
Biology, 22.06.2019 22:30, JaylahtheSmarrtie
Afive-year study was carried out on a population of algae in a lake. the study found that the algae population was steadily decreasing in size. over the five-year period this decrease most likely led to
Answers: 3
Carcinogenesis requires that a single cell or one of its descendents undergo a series of rare geneti...
Chemistry, 18.09.2019 03:00