"Since there are about 1013 cells in an adult human, and about 10¹0 cells die and are replaced each day, we become new people every three years" is true or false.
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"Since there are about 1013 cells in an adult human, and about 10¹0 cells die and are replaced each day, we become new people every three years" is true or false.
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- Assuming that no cells die, how many cells will there be in one week?With a doubling time of 240 minutes and a starting population size of 1000 cells, how many cells will be present after 72 hours, assuming no cell death?"In order for proliferating cells to maintain a relatively constant size, the length of the cell cycle must match the time it takes for the cell to double in size" is true or false.
- Please help True or false, if false rewrite the statement in a way that makes it true. a) A cell spends most of its life dividing rather than carrying out typical cell functions. False b) We can know the genotype of an individual simply by looking at their phenotype. FalseStatement 1: Embryonic stem cells are pluripotent which means that they are capable of differentiating into many different cell types. Statement 2: Adult stem cells are cells that generate a limited number of cell types. O Both statements are true. Both statements are false. Statement 1 is true. Statement 2 is false. O Statement 1 is false. Statement 2 is true.About 1016 cell divisions take place in a human body during a lifetime, yet an adult human body consists of only about 1013 cells. Why are these two numbers so different?
- What kind of daughter cells will result if the "Normal cell" above goes through mitosis? A) two normal cells B) two cancer cells C) two specialized cells D) one cancer cell and one normal cellYOU DON'T NEED TO EXPLAIN THESE QUESTIONS JUST PROVIDE ANSWER DNA separates during ____ of mitosis. a)Prophase b)Telophase c)Metaphase d)Interphase e)Anaphase 2. What separates during mitosis? a)Single DNA strands b)Cytoplasm c)Sister chromatids d)Telomeres e)Homologous chromosomes 3. Oncogenes are associated with cancer because they Oncogenes are associated with cancer because they (select one answer) Cause cells to initiate a death pathway Fail to put a “brake” on the cell cycle Push cells through the cell cycle Divert cells into G0 phase Slow down the cell cycleWhich is true for cancer cells: 1) Cell death occurs after a determined number of cell divisions 2) Contact with other cells reduces chance of cell division 3) Cell division occurs in the presence of stop signals.
- How many bacteria-killing cells are in breastmilk?"W Q3) A common technique for determining ratios of viable versus non-viable cells after a particular treatment is to use cell-impermeable and cell-permeable dyes. As cells undergo different processes of cell death (apoptosis, necrosis, pyroptosis, etc.) the integrity of the cellular membrane degrades, which allows cell-impermeable dyes to penetrate while viable cells in the population will continue to exclude the dye. Examples of commonly used cell-impermeable dyes are propidium iodide (PI), ethidium bromide (EtBr), 7-aminoactinomycin D (7-AAD) and trypan blue. DNA-intercalating cell-permeable dyes include Hoescht, 4',6-diamidino-2- phenylindole (DAPI), and DRAQ5. Your Pl asks you to design an experiment using an old stock of cells that have been stored in liquid nitrogen for the past 5 years. The cells were frozen down using a generic freezing media consisting of 20% dimethyl-sulfoxide (DMSO) in fetal bovine serum (FBS). Because the cells have been frozen for an extended period and…Answer choices: 1) a cell with two complete sets of chromosomes 2) a chromosome pair, one maternal and one paternal 3) the events that occur from the time a cell forms until the time it divides 4) time of cell growth 5) cell division that maintains chromosome number 6) a reproductive mode by which offspring are produced by one parent only 7) an exact copy of a chromosome