Which of the following can be regarded as unipotent stem cells. A Germ cells B Induced-pluripotent stem cells Adult stem cells Embryonic stem cells Primordial germ cells that have not reach the gonads
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A:
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Q: totipotent
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A: What process control the cell number during development?
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- Somatic stem cells are found in... all choices are correct embryonic tissues adult tissues germ tissueStem cells with their totipotent capacity have determinate cleavage. True FalseIn plants, what are totipotent cells? cells from plant embryo young cells that can differentiate into any cell type mature cells can revert to an undifferentiated state
- Statement 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.Which of the following are characteristics of stem cells? Select all that apply. --They can divide via meiosis to produce additional stem cells. --They are unspecialized cells. --They are specialized cells. --They differentiate into specialized cell types via homeotic genes. --They can divide via mitosis to produce additional stem cells.Which event occurs in S-phase? prastrca Mitotic spindle is created. O Normal growth and cell function Energy stores are replenished Karyokinesis None of the above
- Which of the following statement is NOT true? Cell cycle cyclin dependent kinases (CDKs) are synthesized and degraded in every cell cycle O Activity of the S phase CDKs rise in the S phase and drops in the G2 and mitotic phase APC/C proteasome activity increases during mitotic phase and drops towards the end of the G1 phase G1/S cyclin protein amount rises in the G1 phaseSenescent cells usually undergo marked changes in chromatin structure characterized by densely staining senescence-associated secretory phenotype. Group of answer choices True FalseWhat process controls cell numbers during development? O Necrosis O Necroptosis O Apoptosis O Ferroptosis None of the above
- Senescence markers are highly exhibited by these groups of cells (Choose all that apply); Group of answer choices Aged cells Damaged cells Malignant cells Premalignant cellsHow many human sperm cells are in the typical race to reach and fertilize a human ovum? 200 to 300 20,000 to 30,000 200,000 to 300,000 200,000,000 to 300,000,000 What processes during the cell cycle ensures appropriate cell growth and rates of division? Malfunction of these processes can lead to uncontrolled growth and cancer. centrioles checkpoints interphases crossing over events A human skin cell has 46 chromosomes and undergoes mitosis. How many chromosomes will be present in each daughter cells when mitosis is complete? 46 23 92 5 What type of cell would result from meiosis? liver neuron epithelial eggWhich of the following defines fate? process of which a potency of a cell becomes identical. sum of all structures a cells descendants will form at later stage of development. A variety of structures that the descendants of a cells can potentially form. none of the above a shift in the cortical cytoplasm of a zygot