Homework Answers
This phase of Mitosis is Prophase.
Two processes are-
1) Chromosomal material condenses to form compact mitotic chromosomes. Chromosomes are seen to be composed of two chattached together at the centromere.
2) Centrosome which had undergone duplication during interphase, begins to move towards opposite poles of the cell. Each centrosome radiates out microtubules called asters. The two asters together with spindle fibres forms mitotic apparatus.
Cells at the end of prophase, when viewed under the microscope, do not show golgi complexes, endoplasmic reticulum, nucleolus and the nuclear envelope.
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Using the picture provided below, write the phase of Mitosis the cell has been captured in...
Question 16 Write out the phase of the cell undergoing Mitosis and write out at least...
Question 16 Write out the phase of the cell undergoing Mitosis and write out at least two characteristics that is occurring in that phase.
Which phase of mitosis is the cell below in?
Question 1 Which phase of mitosis is the cell below in? Telophase Prophase Metaphase AnaphaseQuestion 2 A cell in telophase would be defined by which of the following characteristics? The nuclear envelop is breaking down so that the mitotic spindles can attach to the sister chromatids. The actin cytoskeleton is constricting the cell membrane, separating the the daughter cells from each other. The mitotic spindles have attached to kinetochores and moved the sister chromatids into the center of the cell. Two nuclear envelops are forming, one around each set of...
The picture below represents a cell during metaphase of mitosis. The chromosomes are represented in red...
The picture below represents a cell during metaphase of mitosis. The chromosomes are represented in red and the mitotic spindle is represented in green. BO ! A. The cell is stuck in metaphase because a checkpoint has been activated. Why was the checkpoint triggered? B. What could have happened to this cell without this checkpoint? There are three main checkpoints during the cell cycle. One checkpoint occurs at the end of G1 phase and involves the protein p53. If p53...
1- Name the following phases of mitosis. Write 1-2 characteristics of each phase of mitosis. STRUCTURES...
1- Name the following phases of mitosis. Write 1-2 characteristics of each phase of mitosis. STRUCTURES AND FUNCTIONS In the spaces provided below, label each figure with the phase of mitosis that it represents.
During the M-phase (Mitosis), spindle fibers extend from centrioles in the poles of the cell and...
During the M-phase (Mitosis), spindle fibers extend from centrioles in the poles of the cell and attach to the centromeres of each replicated chromosome. The chromosomes are aligned along the equatorial plate of the cell in the process. Once all centromeres got attached from either side to a spindle fibre, a cellular checkpoint got passed and the spindle fibers begin to contract towards the poles, pulling the two sister chromatids apart such that one sister chromatid of each of the...
9. In human cells four different cyclins drive the cell cycle (see picture). Please, note that...
9. In human cells four different cyclins drive the cell cycle (see picture). Please, note that the cyclins overlap (the picture shows the concentration of each cyclin protein in the cytoplasm). Write a short essay or outline of an experiment to test the following things: How can you figure out how much cyclin protein is present in the cytoplasm at different phases of the cell cycle? B. How can you figure out if there is overlap between the cyclins? For...
In order for a cell to move past the G2 checkpoint and into M phase, the...
In order for a cell to move past the G2 checkpoint and into M phase, the cell has to check for which of the following? A All of the DNA has been replicated B. All of the DNA damage has been repaired c. All of the chromosomes are attached to the mitotic spindle D. A and B only E. All of the above (A, B, and C) What type of DNA damage can result in a base loss? A deamination...
The life span (in thousand hours) of picture tubes manufactured by a company can be modeled using exponential distribution. On a survey it has been found that there were two types of processes by...
The life span (in thousand hours) of picture tubes manufactured by a company can be modeled using exponential distribution. On a survey it has been found that there were two types of processes by which the picture tubes can be manufactured. If type I has been adopted, the expected life span would be 700 (in thousand hours) whereas the expected lifespan of picture tubes by using the second type would be 1050 hours. Type Il is twice as costly as...
1. If a cell has 8 chromosomes, each daughter cell after mitosis will have how many...
1. If a cell has 8 chromosomes, each daughter cell after mitosis will have how many chromosomes? A) 64 B) 32 C) 16 D) 8 E) 4 2. During cytokinesis in plant cells... A) microtubules form a constricting ‘purse string’ between two nuclei B) microtubules help assemble a cell plate of new plasma membrane between two nuclei C) microfilaments help assemble a cell plate of new plasma membrane between two nuclei D) microfilaments form a constricting ‘purse string’ between two...
Instructions Below is a picture of George's chromosomes (a hypothetical example). They show his genotypes for...
Instructions Below is a picture of George's chromosomes (a hypothetical example). They show his genotypes for Cystic Fibrosis (Cc), ear attachment (ee), tongue rolling (Tt), and polydactyly (Pp) Mand Drepresents the chromosomes he inherited from Mom and Dad, and the number indicates which chromosome the genes for the above traits are on. Chromosome 1 Chromosome 2 Chromosome 3 M3 D3 M1 D1 M2 D2 T It C P p e In the following activity you will draw pictures of George's...
Question 16 Write out the phase of the cell undergoing Mitosis and write out at least two characteristics that is occurring in that phase.
The picture below represents a cell during metaphase of mitosis. The chromosomes are represented in red and the mitotic spindle is represented in green. BO ! A. The cell is stuck in metaphase because a checkpoint has been activated. Why was the checkpoint triggered? B. What could have happened to this cell without this checkpoint? There are three main checkpoints during the cell cycle. One checkpoint occurs at the end of G1 phase and involves the protein p53. If p53...
1- Name the following phases of mitosis. Write 1-2 characteristics of each phase of mitosis. STRUCTURES AND FUNCTIONS In the spaces provided below, label each figure with the phase of mitosis that it represents.
During the M-phase (Mitosis), spindle fibers extend from centrioles in the poles of the cell and attach to the centromeres of each replicated chromosome. The chromosomes are aligned along the equatorial plate of the cell in the process. Once all centromeres got attached from either side to a spindle fibre, a cellular checkpoint got passed and the spindle fibers begin to contract towards the poles, pulling the two sister chromatids apart such that one sister chromatid of each of the...
9. In human cells four different cyclins drive the cell cycle (see picture). Please, note that the cyclins overlap (the picture shows the concentration of each cyclin protein in the cytoplasm). Write a short essay or outline of an experiment to test the following things: How can you figure out how much cyclin protein is present in the cytoplasm at different phases of the cell cycle? B. How can you figure out if there is overlap between the cyclins? For...
In order for a cell to move past the G2 checkpoint and into M phase, the cell has to check for which of the following? A All of the DNA has been replicated B. All of the DNA damage has been repaired c. All of the chromosomes are attached to the mitotic spindle D. A and B only E. All of the above (A, B, and C) What type of DNA damage can result in a base loss? A deamination...
The life span (in thousand hours) of picture tubes manufactured by a company can be modeled using exponential distribution. On a survey it has been found that there were two types of processes by which the picture tubes can be manufactured. If type I has been adopted, the expected life span would be 700 (in thousand hours) whereas the expected lifespan of picture tubes by using the second type would be 1050 hours. Type Il is twice as costly as...
Instructions Below is a picture of George's chromosomes (a hypothetical example). They show his genotypes for Cystic Fibrosis (Cc), ear attachment (ee), tongue rolling (Tt), and polydactyly (Pp) Mand Drepresents the chromosomes he inherited from Mom and Dad, and the number indicates which chromosome the genes for the above traits are on. Chromosome 1 Chromosome 2 Chromosome 3 M3 D3 M1 D1 M2 D2 T It C P p e In the following activity you will draw pictures of George's...
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