Homework Answers
Ans) what is centrosome.
It is an organelle which is made up of 2 Centrioles and the site for organisation of microtubules to provide for structure of cell and to separate chromatids during division.
Relation between centrosome and Centrioles is that two Centrioles together make a centrosome both help in cell division while centrosome will direct movement of chromosomes the centromere will help the movement of chromosomes by creating spindle fibres along which the chromosomes separate.
6. Event determining when chromatid becomes chromosomes is separation of sister chromatids to become chromosomes in Anaphase.
In mitosis - Anaphase.
In Meosis - Anaphase 2.
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5. What is a centrosome? How are centrioles and centrosomes related? What event determines when a...
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...
7. Name the event of meiosis that ensures that the chromosome number is reduced. 8. During...
7. Name the event of meiosis that ensures that the chromosome number is reduced. 8. During which stage of meiosis does each of the following events occur? 2. Synapsis b. Crossing-over . c. Segregation of homologous chromosomes d. Reduction from diploid to haploid e. Separation of chromatids f. Independent assortment of homologous chromosomes. 9. Many people have the misconception that a dominant allele must be the most common in a population. Address this misconception by using the finger number trait...
Question 5 9 pts How is meiosis anaphase I distinctly different from mitosis anaphase? Select all...
Question 5 9 pts How is meiosis anaphase I distinctly different from mitosis anaphase? Select all that apply. Hint • Meiosis Phases Part 2 u video • Textbook chapter 11 section 11.1 During melosis anaphase I the non-kinetochore spindles will separate the chromosomes, while during mitosis anaphase the kinetochore spindles will separate the chromosomes, During melosis anaphase I crossing over will take place, while mitosis anaphase does not contain any crossing over. During meiosis anaphase I the homologous chromosomes will...
1.how many chromosome duplications happen before Mitosis and meiosis? 1, 2, or 3? 2. how many...
1.how many chromosome duplications happen before Mitosis and meiosis? 1, 2, or 3? 2. how many cell divisions occur during mitosis and meiosis? 0, 1, or 2? 3. how many daughter cells are produced following mitosis? what about meiosis? 1, 2, 3, or 4 4. how many chromosomes are in the daughter cells produced by Mitosis and Meiosis ? haploid (n) or diploid (2n)?
9. The fusion of a and a _produces a zygote with 46 (2n) chromosome number. 10....
9. The fusion of a and a _produces a zygote with 46 (2n) chromosome number. 10. During meiosis, the chromosome number: a) is doubled b) is reduced c) remains the same d) becomes diploid 11. Meiosis produces haploid (#) reproductive cells called _ 12. Name the 2 human gametes & tell their chromosome number. 13. Cells starting mitosis & meiosis begin with a (haploid or diploid) set of chromosomes. 14. How many times do cells divide during meiosis? 15. What...
2.Know the mitosis and meiosis cell cycles in complete detail. This includes the names of the...
2.Know the mitosis and meiosis cell cycles in complete detail. This includes the names of the stages and what happens to the chromosomes during each stage. What kinds of cells does each process produce? Which is the ‘reduction division’ and what does this mean? How many cell divisions are in each cell cycle? Know when chromatids separate in meiosis. Do they separate in mitosis and if so when does this happen?
Use the information and data you gathered during the lab to answer the following questions. Describe...
Use the information and data you gathered during the lab to answer the following questions. Describe the materials you chose for each structure in your cell models and briefly explain why you chose that particular material. Chromosomes: Nuclear envelope: Centrioles: Spindle: When looking at the onion slide under the microscope, what stage were the majority of the cells in? Why do you think that is? What evidence from the onion root slide shows that mitosis is a continuous process, not...
what is blastocyst PART IV 57 Name Section Mitosis Meiosis TABLE 10.2 TSI Human Organism Location...
what is blastocyst
PART IV 57 Name Section Mitosis Meiosis TABLE 10.2 TSI Human Organism Location where does it take place in the body? Number of cells formed at the end of mitosis and meiosis II. Number of chromosomes pres- ent at the end of the cell division cycle (mitosis and meiosis II). Does the process increase genetic diversity? List two examples of how genetic variation is accomplished. Crossing over-Does it occur? If so, name the stage it occurs. mie...
Cell death is a regulated event within the lie cycle of the organism. In the meantime,...
Cell death is a regulated event within the lie cycle of the organism. In the meantime, apoptosis and necrosis are both used to describe death of a cell. How are they different? Why would this distinction be relevant when we talk about cells? Compare and contrast Mitosis versus Meiosis. Include details about homologous chromosomes, division phases that might occur, and any unique events that may occur during the two different types of cell division.
24-29 pleas help asap its a carbon hydrogen chain and is used by 24) In the...
24-29 pleas help asap
its a carbon hydrogen chain
and is used by 24) In the figure, "A" represents a the cell in__ a. sugar, glycogen b. amino acid, polypeptides c. phospholipid, cell membranes d. nucleotide, DNA 25) Meiosis I differs from mitosis in that: a. The chromosomes are intentionally broken during mitosis, but not meiosis b. Homologs are separated during melosis, but not mitosis Sister chromatids remain together at the end of mitosis d. Recombination occurs between chromosomes in...
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...
7. Name the event of meiosis that ensures that the chromosome number is reduced. 8. During which stage of meiosis does each of the following events occur? 2. Synapsis b. Crossing-over . c. Segregation of homologous chromosomes d. Reduction from diploid to haploid e. Separation of chromatids f. Independent assortment of homologous chromosomes. 9. Many people have the misconception that a dominant allele must be the most common in a population. Address this misconception by using the finger number trait...
Question 5 9 pts How is meiosis anaphase I distinctly different from mitosis anaphase? Select all that apply. Hint • Meiosis Phases Part 2 u video • Textbook chapter 11 section 11.1 During melosis anaphase I the non-kinetochore spindles will separate the chromosomes, while during mitosis anaphase the kinetochore spindles will separate the chromosomes, During melosis anaphase I crossing over will take place, while mitosis anaphase does not contain any crossing over. During meiosis anaphase I the homologous chromosomes will...
9. The fusion of a and a _produces a zygote with 46 (2n) chromosome number. 10. During meiosis, the chromosome number: a) is doubled b) is reduced c) remains the same d) becomes diploid 11. Meiosis produces haploid (#) reproductive cells called _ 12. Name the 2 human gametes & tell their chromosome number. 13. Cells starting mitosis & meiosis begin with a (haploid or diploid) set of chromosomes. 14. How many times do cells divide during meiosis? 15. What...
what is blastocyst
PART IV 57 Name Section Mitosis Meiosis TABLE 10.2 TSI Human Organism Location where does it take place in the body? Number of cells formed at the end of mitosis and meiosis II. Number of chromosomes pres- ent at the end of the cell division cycle (mitosis and meiosis II). Does the process increase genetic diversity? List two examples of how genetic variation is accomplished. Crossing over-Does it occur? If so, name the stage it occurs. mie...
Cell death is a regulated event within the lie cycle of the organism. In the meantime, apoptosis and necrosis are both used to describe death of a cell. How are they different? Why would this distinction be relevant when we talk about cells? Compare and contrast Mitosis versus Meiosis. Include details about homologous chromosomes, division phases that might occur, and any unique events that may occur during the two different types of cell division.
24-29 pleas help asap
its a carbon hydrogen chain
and is used by 24) In the figure, "A" represents a the cell in__ a. sugar, glycogen b. amino acid, polypeptides c. phospholipid, cell membranes d. nucleotide, DNA 25) Meiosis I differs from mitosis in that: a. The chromosomes are intentionally broken during mitosis, but not meiosis b. Homologs are separated during melosis, but not mitosis Sister chromatids remain together at the end of mitosis d. Recombination occurs between chromosomes in...
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