个 Following graph shows number of chromosomes (N) and amount of DNA (Q) in a cell undergone different stage of cells cycle. 4C 3C+ 2C C+2N 2N 2N 2N ABCDEFGH Phase Which amongst the following statements should be correct on the basis of above given information? I. C represents the phase just before prophase. II. H represents haploid stage of cell. III. G stage of cell has double the number of chromosomes as compared to C' stage. IV. A cannot be represented as acquiescent stage.

个 Following graph shows number of chromosomes (N) and amount of DNA (Q) in a cell undergone different stage of cells cycle. 4C 3C+ 2C C+2N 2N 2N 2N ABCDEFGH Phase Which amongst the following statements should be correct on the basis of above given information? I. C represents the phase just before prophase. II. H represents haploid stage of cell. III. G stage of cell has double the number of chromosomes as compared to C' stage. IV. A cannot be represented as acquiescent stage.

Biochemistry

6th Edition

ISBN:9781305577206

Author:Reginald H. Garrett, Charles M. Grisham

Publisher:Reginald H. Garrett, Charles M. Grisham

Chapter28: Dna Metabolism: Replication, Recombination, And Repair

Section: Chapter Questions

Problem 19P: Figure 28.11 depicts the eukaryotic cell cycle. Many cell types â€œexitâ€� the cell cycle and...

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Which of the following statements is FALSE? A. Centrosomes are anchor points for microtubules and are essential to form the mitotic spindle. B. In the eukaryotic cell cycle the cell spends much more time in the interphase than in the mitotic phase. C. In telophase two nuclear envelopes are fully formed and the cell splits in two via cytokinesis. D. The contraction of the kinetochore microtubules leads to the separation of the sister chromatids during anaphase. E. In the prophase chromatin condenses into X-shaped chromosomes.
What celluar events/processes are associated with G1,S,G2,and M phases of the cell cycle? With the phases of mitosis? Some example: A. DNA replication B. Beginning of mitosis C. Normal cell growth and function D. Breaksdown of nuclear membrane E.Separation of sister chromatids F.Alignment of chromosomes on the equator of the cell H.Triggering the compaction and condensation of chromosomes I. Attachment of microtubles to kinetochores
When studying living cells in a laboratory, researchers sometimesuse drugs as a way to make cells remain at a particular stage of thecell cycle. For example, aphidicolin is an antibiotic that inhibitsDNA synthesis in eukaryotic cells and causes them to remain inthe G1 phase because they cannot replicate their DNA. In whatphase of the cell cycle—G1, S, G2, prophase, metaphase, anaphase,or telophase—would you expect somatic cells to stay if they weretreated with each of the following types of drug?A. A drug that inhibits microtubule formationB. A drug that allows microtubules to form but prevents them fromshorteningC. A drug that inhibits cytokinesisD. A drug that prevents chromosomal condensation
Match the process with the correct phase of the cell cycle (G1, S, G2, M). If the process occurs in M phase indicate subphase (ex. telophase). A) ___________________ The bipolar spindle forms from microtubules. B) ___________________ The nucleus breaks down. C) ___________________ Mitochondria are duplicated. D) ___________________Sister chromatids are formed. E) ___________________Extra cell membrane is synthesized by the smooth ER. F) ___________________DNA is compacted into chromatin.
Through a microscope, you can see a cell plate beginning to develop across the middle of a cell and nuclei forming on either side of the cell plate. This cell is most likely? If the DNA content of a DIPLOID cell in the G1 phase of the cell cycle is represented by 'x. then the DNA content of the same cell at metaphase of MElosIs I would be? 3.Cell A has half as much DNA as cells B. C. and D in a mitotically active tissue. Cell A is likelv in? 4. Which of the following is a recessive trait © Polydactyly © Albinism © Huntington Disease Juvenile glaucoma O None are correct
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The cell cycle of an average mammalian cell is illustrated below. How long did it take for the above-illustrated mammalian cell to complete one cell cycle?How long did the mitosis/cytokinesis phase (M phase) last? What % of the total cell-cycle timedoes that constitute to? What phase takes the longest time to complete during cell cycle and what % of the total cellcycle time does that constitute to? Explain why you think this might be the longest phase of thecell cycle.How long was the S phase? What is happening in the cell during the S phase?
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