a) Fluorescent probes such as DAPI are often used to study cells that are in the different phases of cell cycle. DAPI is a fluorescent stain that binds to DNA. The graph shows the variation in fluorescence intensity of human skin cells that were sorted by FACs into 2 populations based on the amount of fluorescence. Which phase(s) of the cell cycle are population A in? Population B? Why did you pick those phases?

Q: 1. Assume that a cell is 2n=2 (diploid has two chromosomes, the same size). DRAW the following…

A: According to Bartleby's policy, I have to answer only the first question only. Please post the rest…

Q: add radioactive thymine to a culture of eukaryotic cells that are all currently in S phase.  Predict…

A: DNA The genetic material present in almost all eukaryotic cell.

Q: You are looking at a spread of cells in some unknown stage of cell division, and you discover that…

A: Cells are the biological, structural and functional unit of an organism. Cell has a nucleus. Nucleus…

Q: to what do correspond respectively the grey, black and dotted lines? Indicate below the name of the…

A: Replication is the process by which the single mother strand helps to produce two daughter strands.…

Q: a. What is the ploidy of this organism? Provide evidence for you p. How many chromosomes does this…

A: Since you have posted a question with multi- sub parts , we will solve first three sub-parts for…

Q: Why are the two cells produced by the cell cycle genetically identical?

A: The cell is the basic unit of life. The tissue is a group of cells that perform a specific function.…

Q: The photomicrograph below shows mitotically dividing cells from whitefish (Coregonus lavaretus). a.…

A: Introduction: Mitosis is an equational division, in which one parent cell divides into two identical…

Q: Interphase: chromosomes are unpaired Prophase: chromosomes and centromeres have replicated, but…

A: Based on the image below, briefly write two (2) conclusions from this process.

Q: Which type of chromatin makes dark bands? Does this type usually contain more or less active genes?…

A: The human genome contains more than 3 billion nucleotides(organic molecules consist of nucleoside…

Q: 6. Why is it necessary for the DNA to replicate prior to cell division? A. so that each daughter…

A: 6. B. so that each daughter cell will have a complete copy of genetic material.  7.  Purple = PP,…

Q: Kinetochores control the transition from metaphase to anaphase. Why is this statement true?…

A: Kinetochores are protein complexes that assemble on the centromere of each chromosome. They are…

Q: According to the picture above, the cell shown is going through [Select ] and is in the [Select ]…

A: Ans- In the picture above, the cell is going through the meiotic cell division. Meiosis is the…

Q: How do you explain the ability of the S-phase cells in experiment I to induce premature entry of the…

A: It is related to cell fusion.

Q: Identify the stages of the cell cycle using the drop- down menus. E. v Label A v Label B v Label C A…

A: The cell cycle is regarded as life cycle of cell in which a cell grows, divides and copy its genetic…

Q: A. In which phase of cell cycle would cells contain radioactive DNA? Would cells at all phases of…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Select one: OA A OB. B OC C Tissue Sample of Unknown Organism D. D d. In which of the cells labelled…

A: A cell divides into two daughter cells as a result of a sequence of events known as the cell cycle,…

Q: Cyclin dependent kinases would exist in similar amounts in the cells at the different stages…

A: Let us analyze each statement individually:- CDK are present in different proportions  in different…

Q: If  I extract a cell culture with 100 cells that just entered g1.  I needs to extract the MOST…

A: Introduction: Cell cycle is the process by which a cell replicates i.e. makes copies of itself or…

Q: In order to investigate the cell cycle in HEK293 cells in culture, I ran a flow cytometry…

A: Flow cytometry It is defined as a technique that is used to analyze single cells or particles as…

Q: You are working with two different yeast cultures to study their genetics. But, you are not sure…

A: Saccharomyces cerevisiae, a yeast species, mates when two haploid cells of opposing mating types…

Q: A single yeast cell placed on a solid agar will dividemitotically to produce a colony of about…

A: Cell division is a natural process in which a parent cell divides into two daughter cells. Cell…

Q: Knowing what you do about the phases (you can't see this detail from the picture), which cells…

A: The cell cycle is also called the life cycle of a cell and includes all the phases through which a…

Q: According to the question，how do we know if we see more than 2 copies ，it indicate the cell is…

A: The cell cycle is a sequence of events by which a cell duplicates its genome and synthesis other…

Q: You are working with an animal species with a chromosome number of 2n = 4. One pair of chromosomes…

A: Chromosomes are thread-like structures present inside the nucleus of the cell. They carry the…

Q: Most forms of cancer are caused by environmental agents that produce mutations in somatic cells. Is…

A: Environmental factors have been known to trigger a lot of the mutations which develop into cancerous…

Q: Answer the questions below: 1. Rarely , both sister chromatids of a replicated chromosome end up in…

A: During mitosis, when sister chromatids fail to separate during anaphase, one daughter cell will have…

Q: Most cells are unable to copy the ends of chromosomes, and therefore chromosomes shorten with each…

A: Telomerase is an enzyme that is essential for the replication of chromosomal ends. It is a…

Q: It is often useful for scientists to study a population of cells that are all at the same stage of…

A: The cell must undergo division for growth and development. The process of undergoing a cascade of…

Q: Consider the same hypothesis: Bone cells treated with vitamin D generate an increased amount of bone…

A: 1 This hypothesis is an alternative directional hypothesis.It states that bone cells treated with…

Q: Draw a chromosome and a pair of homologs (or homolog pairs, or homologous chromosomes). Label on the…

A: Chromosomes are made up of proteins and DNA molecules. At the time of cell division they divides so…

Q: In a tissue engineering experiment, stem cells are grown in a circular dish (diameter = 3 cm) with a…

A: values given in this experiment required for calculation are  diffusion rate = 1*10-5 cm2/s dish…

Q: Why would a cell in metaphase be more useful than acell in interphase for producing a karyotype?

A: Karyotypes are generally made from mitotic cells which have been arrested in the metaphase or…

Q: You are asked to prepare a karyotype of any species.what type of cell division you will look at to…

A: The structural and functional features of chromosomes along with their abnormalities are studied in…

Q: 1. The photomicrograph below shows mitotically dividing cells from whitefish (Coregonus lavaretus)…

A: Mitosis is the cell division process that involves division of a diploid (2n) mother cell and…

Q: Cell A is actively engaging in growth and division. The cell encounters a damage in its DNA at a…

A: Introduction: The restriction point or R-point denotes the start of a cell cycle (G1/S phase).…

Q: Condensing are proteins that assemble onto the DNA during M phase to promote the progression of the…

A: Chromosome condensation and segregation during cell division are crucial processes that are aided by…

Q: Cell contains 1 set of unreplicated chromosomes A Process 1 A What has happened during Process 2?…

A: The diagram in the question shows the process of cell cycle. "A" represent the parent cell. "B"…

Q: (AKS 3a / DOK 1) Which of the following statements could be used to describe the process mitosis…

A: Cell division is the process by which a parent cell divides into two or more daughter cells. Cell…

Q: Draw or explain in a simple manner what needs to be done in each step of modeling mitosis. Steps/…

A: A cell cycle is a cascade of events which takes place in a cell that grows and divides. In…

Q: match the following terms Pairing of homologous chromosomes Choose... microtubules Choose...…

A: Chromosome pairing refers to the lengthwise alignment of homologous chromosomes at the prophase…

Q: To identify genes controlling the cell cycle in budding yeast, a genetic screen was carried out. In…

A: Answer  Cell cycle is a process where a cell divide to produce two daughter cells. This while…

Q: There are two different pathways for repairing double-strand breaks in the DNA. In which type of…

A: Cells have a mechanism called homology-directed repair (HDR) that is used to fix double-strand DNA…

Q: 5. In the cell cycle (A), chromosomes can present as a single chromosome or duplicated chromosome…

A: Mitosis is the process in which a eukaryotic cell nucleus splits in two, followed by division of the…