Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Question
During which of the following phases of the cell cycle will chromatins be found containing two chromatids?
M
G1
G0
G2
all of the above
Expert Solution
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Step 1
Cell cycle
The cell cycle of a cell is divided into 4 main stages the G1 phase or gap 1 phase, S phase or synthesis phase, G2 phase or gap 2 phase, and M phase or mitotic phase.
The cell cycle helps in the making of new cell from previous cells. They help in the growth and development of an organism.
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- The Cell Cycle Prior to division, the eukaryotic cell must undergo an extended period of preparation, called the interphase. The interphase represents the interval between two consecutive cell divisions. During interphase, the cell synthesizes all the materials that are needed for division to occur, including all the DNA molecules and associated proteins that make up all the chromosomes in the cell. The chromosomes are so named since they are readily stained to become "colored bodies", as shown in Figure 9.1. One or more darkly staining structures inside the nucleus, called the nucleoli, are readily visible in interphase, erti sevilseido primes 1. What is the function of the nucleoli? producer ubemoer Iaibsences make protein are isiq ni to 2 to noistub During M phase, the cell undergoes mitosis to divide its nucleus in two, and toward the end of mitosis, it undergoes cytokinesis, to divide its cytoplasm in two. PRO povite queabler alle seqytowe M phase is composed of krychencser and…arrow_forwardWhich 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 phasearrow_forwardIn the cell cycle it is necessary for interphase to happen before mitosis and cytokinesis creates 2 identical cells. Why is interphase neccessary? What is 1 major reason that mitosis wouldn't work without interphase happening first? INTERPHASE G, (DNA synthesis) G2 MITOTIC PHASE (M) Copy g (level 1) étv .. MacBook Air DII DD 80 888 F9 F10 F7 FB F5 F6 F2 F3 F4 & # $ 3 4 7 9 E R T Y U P F J K C V Barrow_forward
- Homologous pairs of chromosomes are undergoing crossing over, but they have not yet lined up in the middle of the cell. Which stage of the cell cycle is this? A:Anaphase Il B:Anaphase I C:Prophase II D:Prophase Iarrow_forwardin which of the phases of the cell cycle do sister chromatids form? -g2 phase of interphase -g1 phase of interphase -m phase (mitosis) -s phase of interphase -c phase (cytokinesis)arrow_forwardDescribe the cell cycle overall (not each phase). What is interphase, what are the G phases, and what is S phase?arrow_forward
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