8. Molecules outside and inside the cell regulate the cellcycle, making it start or stop.a. What is an example of an external molecule thatregulates the cell cycle?b. What is an example of a molecule inside the cellthat is involved in cell-cycle regulation?

Q: i) Why does the concentration of different cyclins vary throughout the cell cycle? ii) Which of the…

A: A cell cycle is a process in which cells multiply and form two new cells. The CDKs are the protein…

Q: 1. What are the four distinct phases of the cell cycle? What are the specific events that happen…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 3. BPA is a chemical compound that was used in the manufacturing of plastic. When it comes into…

A: DISCLAIMER Since you have asked multiple questions, we will solve the first question for you. If you…

Q: 20. In mitosis, if a parent cell has 25 chromosomes, each daughter cell will have hOW a. 100 total…

A: Cell cycle and mitosis  The cell cycle has three phases, they are  Interphase  Mitosis Cytokinesis…

Q: How would you design an experiment to test the hypothesis: Alpha tubulin is expressed at higher…

A: Alpha tubulin is a major component of cytoskeleton in eukaryotes. During cell division, this protein…

Q: 1) Scientists isolate cells in various phases of the cell cycle. They isolate a group of cells that…

A: "Since you have asked multiple questions, according to our guidelines we are eligible to answer only…

Q: Why is it important for mitosis to produce genetically identical daughter cells?

A: The cell division is responsible for the generation of daughter cells from the mother cell. Usually…

Q: 7. In BIOLOGY, why is it BAD to have a Keq 1? B. If Keg =<1, how does this work in a cell for %3D a…

A: INTRODUCTION A constant, characteristic for each chemical reaction; relates the specific…

Q: 7. Identify the following phases of the typical plant cell cycle indicated by the letters (be…

A: A typical cell cycle of plants has 4 different phases, they are G1 phase, S phase, G2 phase, and…

Q: 7.The APC protein- ----. a. is essential for degrading B-catenin. b. causes increased activation of…

A: 7. ANSWER;- A  is correct  Explain;- The APC protein is essential for degrading β-catenin. The APC…

Q: 3. Which of the following is NOT TRUE with respect to the cell cycle?

A: Cell cycle is sequence of events that takes place in a cell for cell division. It is divided into…

Q: 17. The formation of a cell membrane is beginning across the middle of a cell and nuclei are…

A: 1)The answer is option B - a plant cell undergoing cytokinesis. cytokinesis is the physical process…

Q: 2. The four phases of the cell cycle, in order, are are G,, S, G,, and M. A cell contains the most…

A: The cell cycle is composed of interphase (G₁, S, and G₂ phases), followed by the mitotic phase…

Q: 12. Which stage of mitosis is best represented by the cell to the right? A. Telophase B. Metaphase…

A: Cell division is basically the process by which a cell can divide into two or more cells based on…

Q: 3.Mention what are the important functions of apoptosis? discuss briefly at your own words?.

A: Apoptosis refers to the natural process of programmed cell death. It is a normal phenomenon which…

Q: 2. What are ensured by G, and G, as well as metaphase checkpoints? 3. What happens during the G,…

A: The cell cycle summarizes the entire life cycle of a cell. It comprises of all the events that help…

Q: 1. Describe the cell cycle. Why do cells divide? Why are the resulting daughter cells from Mitosis…

A: The cell is the body's structural and functional unit. One of the most important occurrences in the…

Q: centrosome

A: The spindle apparatus is seen in this cellular region called the Centrosome. The answer is C

Q: 1. (a) Describe the generalized model of the cell cycle. Demonstrate how cyclins and…

A: For proper cellular homeostasis, cell cycle control is essential. Communication between or within a…

Q: 11. One difference between cancer cells and normal cells is that cancer cells A) are unable to…

A: There are two types of cell division: meiosis and mitosis. Mitosis is the equational cell division,…

Q: 2. Oncologists often prescribe several different chemotherapy drugs in combination. The idea is that…

A: Chemotherapy drugs work by targetting the growing cancer cells at different phases of cell cycle.

Q: 86. What do you think would happen to a cell if minor DNA damage occurred that caused the cell to…

A: Note: As Per Guidelines, We Can Answer One Question At A Time. Ask Again to get rest answers.…

Q: 8) There is a photo below, where you can see dividing cells near the tip of an onion root under the…

A: Stage in cell division where spindle lines up the chromosomes at the middle of the cell. METAPHASE…

Q: 12. The figure shows a micrograph of colchicine treated onion root tip cells prepared using squash…

A: Introduction : Mitosis is the process by which a cell copies its chromosomes and then segregates…

Q: 1. Describe the steps/proteins of the pathway that starts with a growth factor binding to a receptor…

A: Cancer: It is an uncontrolled differentiation, proliferation and division of a normal cells. All…

Q: 1. Examine the micrographs provided on the following two pages, and find one good example of a plant…

A: Hi!  Thank you for the question. As micrographs are only provided for the plant cells, I will be…

Q: 5. If dividing cells are grown in a culture medium containing radioactive thymidine, the thymidine…

A: In case of eukaryotic organism, cell containing nucleus, the cell cycle is categorized into two two…

Q: 4) Describe in detail how p53 and MDM2 regulate cell division in a normal, healthy cell. You should…

A: There are two proteins called MDM2 and p53 which plays an important role in regulation of cell…

Q: 11. Doubling of genetic material in preparation for division occurs in which phase of the celn…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 8. Why do you think cytokinesis usually occurs in the middle or midpoint of the cell? What would…

A: The final stage in cell division in which the cytoplasm divides at the region between the two newly…

Q: . What is plant programmed cell death?

A: Plant programmed cell death (PCD) is a vital component in the systems of defense mechanism and…

Q: 1) The activity of the cell cycle is controlled by the abundance of:  A) protein ligases and…

A: The "cell cycle", also known as "cell division", is a set of processes that occur in a cell leading…

Q: 5. come from the outgrowth of migrating cells from a piece of tissue that is disaggregated by…

A: The answer is "true".

Q: What did the virus conclude? , Which virus was used? , How did the virus help in the conclusion?…

A: A virus is a submicroscopic infectious agent that replicates only inside the living cells of an…

Q: 1. What are the four distinct phases of the cell cycle? What are the specific events that happen…

A: Cell cycle is the process by which a cell divides into two cells.

Q: 3.What is the significance of checkpoints in the cell cycle?

A: As we know all cells are originated from pre-existing cells. So, to form new cell , cell division is…

Q: 2. A researcher is studying the effects of a novel cancer drug on cell division and comparing the…

A: Cancer is an uncontrolled division of cell that has a defunct apoptosis mechanism. Usually, when…

Q: 9. What is the long be the case. 10. Are the other phases of mitosis equal (or close)? Suggest a…

A: Interphase is the longest part of the cell cycle. During this phase, the cell grows and copies its…

Q: 5. A new mutation that arose in one copy of gene X in a somatic cell resulted in the formation of a…

A: Mutation is change that occurs in our DNA sequence, either due to mistakes when DNA is copied or the…

Q: 4.Consider a cell in metaphase compared to a cell in rest (not in the cell cycle leading to cell…

A: Metaphase refers to the second stage of mitosis in the cell cycle of eukaryotes. It accounts for…

Q: 2 A researcher is studying the effects of a novel cancer drug on cell division and comparing the new…

A: Cancer is a metabolic and genetic disorder characterized by uncontrolled cell division and tissue…

Q: 4. Why can't plant cells divide their cytoplasm using cleavage? What form of cytokinesis do plant…

A: As you have asked multiple questions we are instructed to answer only one. Please repost the…

Q: 3. In a well written paragraph, please explain the relationship between mutation, the cell cycle,…

A: Answer Cancer can be termed as a phenomenon of unregulated and uncontrolable cell growth. The…

Q: 5. The repeating of growth AND division that many eukaryotes go through is called A. a checkpoint…

A: Cell cycle is the process by which a cell divides itself.

Q: 9. which of the following is not a function of Mitochondria? A. Synthesis of certain amino acids B.…

A: Mitochondria is also known as the power house of the cell. It generates energy molecules for the…

Q: 2. If an N= 3 cell undergoes mitosis, what will be the number and structure of the chromosomes the…

A: In mitotic cell division a cell duplicates all of its contents, including its chromosomes, and…

Q: Why must somatic cells divide? 2. How do healthy cells decide when to divide? 3. How is information…

A: Ans 1 Somatic cells are regular type of body cells which are diploid in nature means they are not…

Q: xamine the graph showing the relative percentage normal and cancer cells spend in various stages of…

A: Cancer cells do not have the property of contact inhibition. Hence they divide in an uncontrolled…

Q: 1.What stage of mitosis would be the most likely to stall if there was an issue with the…

A: Mitosis: it occurs in haploid as well as in diploid cells. It is decided into many phases such as…