Name the indicated regions of the meristem diagramed below.

Q: a) Identify the major checkpoints in a cell and its function.  b)Explain the role of the growth…

A: The cell cycle is the ordered sequence of events that occur in a cell prior to cell division. It…

Q: With regards to the colchicine treated garlic root tip, why would you be more likely to see cells in…

A: Introduction : Colchicine is an alkaloid that comes from the plant Colchicum autumnale, which is…

Q: What is a structure in the centromere region of each chromatid that is specialized for conveyance?

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: ntrolling the cell cycle. Earlier researchers ha frog eggs (Xenopus) contained all the necess ired…

A: Xenopus may be a genus of African frogs that are normally referred to as the African clawed frogs. 2…

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: The continuity of life depends on a cell cycle during which genetic information is passed from a…

A: Cell cycle regulation is important because it allow cells to only divide when conditions are…

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: 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: One change observed at the centrosomes early in mitosis is an increase in the number of…

A: polar orientation of microtubules. associate with other proteins to form gamma tubulin ring complex…

Q: The interphase is the part of the eukaryotic cell cycle that is most transcriptionally active. Gene…

A: DNA is the genetic material that transfers the information from one generation to the other. It is…

Q: In which phases of the cell cycle would you expect double-strand break repair and nonhomologous end…

A: The cell cycle is a process in which the size of the cell increases, the DNA copies, and prepare to…

Q: What is the function of a centromere? At what stage of the cellcycle would you expect the centromere…

A: Chromosomes are long thread-like structures that carry coded genetic information in the form of DNA.…

Q: Dr. William's lab is studying cell division on a mutant primary mouse cell line. Interestingly the…

A: Cell division is the production of new daughter cells from the mother cell. There are usually two…

Q: The “Hayflick limit” is the number of times cells growing in tissue culture will divide before cell…

A: Introduction  Ageing of cells can be attributed to several factors such as degradation of cellular…

Q: What is meant by the term “cycle” in cell cycle?  What is happening in the S phase and M phase?

A: The cell cycle or cell-division cycle is a series of events that takes place in a cell that cause it…

Q: What accounts for the different morphological and functional differences between cells that contain…

A: Deoxyribonucleic acid (DNA) is the genetic material responsible for the transfer of genetic…

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: Suppose cells in an experiment had been labeled with green fluorescent tubulin. At the onset of…

A: As the cell progresses through anaphase B, the bleached spots or the microtubules closer to the…

Q: The enzyme katanin, named after the Japanese samurai swords, cleaves microtubules into short pieces.…

A: Those biomolecules that elevate the chemical reaction inside the body without undergoing any change…

Q: Do cells which lack normal cell cycle control (cancerous cells) exhibit karyotypes that look…

A: Karyotype  It is a process in which the structure of chromosome is depicted. Or in general,…

Q: Which cells are shown in the figure below (under the X) ?

A: Cardiac muscle Cardiac muscle also known as heart muscles or myocardium. The heart of human being is…

Q: "Agent V" is the name of an anticancer (chemotherapy) drug. This drug works against cancer cells by…

A: A cell grows and progresses through the cell cycle t divide into corresponding daughter cells. The…

Q: Which of the following best describes this process of controlled cell in the web- bing of the…

A: During the development of human beings the webbing between fingers is broken down and spacing…

Q: structures that you can see in some of the onion root tip cells.

A: The common onion is also termed as bulb onion. It is the most common cultivated species in the…

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: Let's say that an experiment had no disruption to kinetochores and you are able to inactivate the…

A: MPF promotes the entrance into mitosis (the M phase) from the G2 phase by phosphorylating multiple…

Q: Name the two overarching phases of the cell cycle?  How long does the complete cell cycle take in…

A: Here we'll explore the basic of the cell cycle, which is an essential process that permits cells to…

Q: Given their respective roles, why might activation of formin and myosin II be beneficial as cells…

A: When a cell is destined for division, first its nuclear content would be shared between cells. It…

Q: Anaphase B involves the separation of spindle poles. What forces have been proposed to drive this…

A: Anaphase is the third stage, followed by metaphase that is characterized by the seperation of…

Q: The somatic stem cells are derived from source such as_________.a) Bone marrow, embryos, amniotic…

A: Somatic stem cells, also known as adult stem cells are undifferentiated cells that are found in the…

Q: In figure 1 locate the mitotic zone or region of cell division. Next, identify mitotic stages…

A: Mitosis is the type of cell division in which a diploid parent cell divides to form two diploid…

Q: Why does release (the rate of release of minus ends from the nucleation site of the centrosome,…

A: The microtubules are cylindrical structures composed of tubulin proteins. These tubulin proteins are…

Q: In a human cell at the end of prophase I, how many chromatids, centromeres, and bivalents are…

A: Cell cycle is a series of changes occur in a newly divided cell through which it duplicates its…

Q: Which of the following would occur? Select all that apply This mutant M-phase cyclin B will not be…

A:

Q: rase, movement during mitosis and meiosis? Explain. omosome ay

A: Cohesin is the protein which is responsible for the sister chromatids to remain close to each other…

Q: The stage of the cell cycle during which sister chromatids separate from one another is   a)…

A: The cell cycle is divided into two phases: Interphase M-phase Interphase is further sub-divided…

Q: In cell division, each chromosome is copied entirely. a.) true  b.) false

A: INTRODUCTION Cell division In cell division the parent cell divides to form daughter cell. Mitosis…

Q: At the end of which phase(s) of the mitotic cell cycle does each chromosome consist of two sister…

A: Chromosomes are long, thread-like structures that contain tightly packed DNA within the nucleus. The…

Q: How does the activity of MPF (CDK1) vary throughout the cell cycle? Is this correlated with…

A: One of the most important protein kinases is Cdk1/cyclin B also known as maturation promoting factor…

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: