New cells are formed in organisms in order to grow, to replace old, dead and injured cells,and to form gametes required for reproduction. The process by which new cells are made iscalled cell division. There are two main types of cell division: mitosis and meiosis.1. What is the type of cell division observed in testes and Ovary?2. How do genes control the growth and division of cells?3. Cell division is the means of reproduction in unicellular organisms. Justify?4. Why are full siblings made from egg and sperm cells from the same twoparents can look very different from one another?5. Which cell organelle plays a central role in cellular reproduction?
Question
New cells are formed in organisms in order to grow, to replace old, dead and injured cells,and to form gametes required for reproduction. The process by which new cells are made iscalled cell division. There are two main types of cell division: mitosis and meiosis.1. What is the type of cell division observed in testes and Ovary?2. How do genes control the growth and division of cells?3. Cell division is the means of reproduction in unicellular organisms. Justify?4. Why are full siblings made from egg and sperm cells from the same twoparents can look very different from one another?5. Which cell organelle plays a central role in cellular reproduction?
Solution 1
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The type of cell division observed in testes and ovaries is meiosis. This process is responsible for the production of gametes, or sex cells, which are used in sexual reproduction.
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Genes control the growth and division of cells through the production of proteins that regulate the cell cycle. The cell cycle is a series of events that cells go through as they grow and divide. It consists of stages including cell growth (interphase) and cell division (mitosis or meiosis). Genes encode for proteins that control when these stages occur and how long they last.
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Cell division is the means of reproduction in unicellular organisms because it results in two identical daughter cells. This is a form of asexual reproduction, where a single parent cell divides to produce two new cells that are genetically identical to the parent cell. This allows the unicellular organism to increase its population size.
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Full siblings made from egg and sperm cells from the same two parents can look very different from one another due to genetic recombination and independent assortment during meiosis. These processes shuffle the genes from the parents, so each egg or sperm cell contains a unique combination of genes. When an egg and sperm combine during fertilization, the resulting offspring has a unique set of genes, different from both parents and any siblings.
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The cell organelle that plays a central role in cellular reproduction is the nucleus. It contains the genetic material (DNA) that is duplicated and then divided equally during cell division. The nucleus controls this process and ensures that each new cell gets a complete set of DNA.
Solution 2
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The type of cell division observed in testes and ovaries is meiosis. This process is responsible for the production of gametes, or sex cells, which are used in sexual reproduction.
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Genes control the growth and division of cells through the production of proteins that regulate the cell cycle. The cell cycle is a series of events that cells go through as they grow and divide. It consists of stages including cell growth (interphase) and cell division (mitosis or meiosis). Genes encode for proteins that control when these stages occur and how long they last.
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Cell division is the means of reproduction in unicellular organisms because it results in two identical daughter cells. This is a form of asexual reproduction, where a single parent cell divides to produce two new cells that are genetically identical to the parent cell. This allows the unicellular organism to increase its population size.
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Full siblings made from egg and sperm cells from the same two parents can look very different from one another due to genetic recombination and independent assortment during meiosis. These processes shuffle the genes from the parents, so each egg or sperm cell contains a unique combination of genes. When an egg and sperm combine during fertilization, the resulting offspring has a unique set of genes, different from both parents and any siblings.
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The cell organelle that plays a central role in cellular reproduction is the nucleus. It contains the genetic material (DNA) that is duplicated and then divided equally during cell division. The nucleus controls this process and ensures that each new cell gets a complete set of DNA.
Similar Questions
Gametes or sex cells undergo which type of cell division?a.Mitosisb.Meiosis I onlyc.Meiosis II onlyd.Meiosis I and II
In humans there are two types of cell division: mitosis and meiosis. The table below gives statements about cell division. Tick ( ) one box in each row to show if the statement is true for mitosis only, for meiosis only, or for both mitosis and meiosis. The first row has been done for you.StatementMitosis only Meiosis only Both mitosis and meiosis How cells are replaced How gametes are made How a fertilised egg undergoes cell division How copies of the genetic information are made How genetically identical cells are produced (4) 6. Page 14 of 18Magnification = image size / rael sizefor bactrial cell: 50000 = image size of bacterial cell / 2image size of bacterial cell = 50 000 * 2 =100 000 micrometersimage size of plant cell equals = 100 000 micrometers500 = 100000/xx = 100 000/500x = 200 micrometers it is too big to fit in the bacterial cell(b) Stem cells can be taken from human embryos. In therapeutic cloning, an embryo is produced that has the same genes as the patient. (i) Name one source of human stem cells, other than human embryos. ______________________________________________________________ (1) (ii) Stem cells from embryos can be transplanted into patients for medical treatment. Give one advantage of using stem cells from embryos, compared with cells from the source you named in part (i). ______________________________________________________________ ______________________________________________________________ (1)
As a cell moves through the cell cycle, it grows in size and eventually reproduces. Which part of this process occurs during mitosis?A.The cell divides into two daughter cells.B.The cell organizes its copied chromosomes into two identical nuclei.C.The cell makes additional organelles.D.The cell makes a copy of each of its chromosomes.SUBMITarrow_backPREVIOUS
Mitosis and meiosis both produce new cells through cell division. However, the division process differs due to the kind of cell being produced. How is meiosis different from mitosis?
Match each type of cell division with the correct description.InstructionsDrag and drop application.MeiosisMeiosis drop zone empty.MitosisMitosis drop zone empty.Process by which most body cells divide producing identical daughter cellsCell division that produces egg and sperm cellsNeed help? Review these concept resources.
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