2.5 Growth and repair – Questions and answers Q1. Bk Ch2 S2.5 Q1
... Mitosis is a particular kind of nuclear division resulting in the production of new cells that are identical to the original cell. Example diagram: ...
... Mitosis is a particular kind of nuclear division resulting in the production of new cells that are identical to the original cell. Example diagram: ...
Multi-celled and Single-Celled Notes
... Bacteria Kingdom: single-celled, cells lack a nucleus, most numerous type of organism. Some get their food from the Sun’s energy, others get their food from eating living and nonliving materials *cocci bacteria-rod shaped, they are used in foods such as pickles and sauerkraut. They produce an acid t ...
... Bacteria Kingdom: single-celled, cells lack a nucleus, most numerous type of organism. Some get their food from the Sun’s energy, others get their food from eating living and nonliving materials *cocci bacteria-rod shaped, they are used in foods such as pickles and sauerkraut. They produce an acid t ...
Problem Set # 4
... 1. In sheep, white (W) is dominant to black w. Give the F-2 phenotypic and genotypic ratios resulting from the cross of a pure-breeding white ram with a pure-breeding black ewe. 2. If you found a white sheep and wanted to determine its genotype, what color animal would you cross it to and why? 3. In ...
... 1. In sheep, white (W) is dominant to black w. Give the F-2 phenotypic and genotypic ratios resulting from the cross of a pure-breeding white ram with a pure-breeding black ewe. 2. If you found a white sheep and wanted to determine its genotype, what color animal would you cross it to and why? 3. In ...
The Diversity of Cells Note-taking Guide (Chapter 3: Section 1
... Who was the first person to see and describe cells? How did he do it? Describe how he made his discovery. ...
... Who was the first person to see and describe cells? How did he do it? Describe how he made his discovery. ...
Lesson 5: Cell Growth and Reproduction (1
... centrioles form outside the nucleus of the cell. Chromosomes line up near the middle or equator of the cell during metaphase. The protein fibers within the cell allow chromosomes to pull apart and move to opposite poles during anaphase. The final stage of mitosis called telophase is identified by a ...
... centrioles form outside the nucleus of the cell. Chromosomes line up near the middle or equator of the cell during metaphase. The protein fibers within the cell allow chromosomes to pull apart and move to opposite poles during anaphase. The final stage of mitosis called telophase is identified by a ...
Cell Organelles Review Package
... 23. Why are many membranes that are present in cells interchangeable? Give an example in your explanation. __________________________________________ __________________________________________________________________ 24. Which organelles will probably be more abundant than others in an active eukary ...
... 23. Why are many membranes that are present in cells interchangeable? Give an example in your explanation. __________________________________________ __________________________________________________________________ 24. Which organelles will probably be more abundant than others in an active eukary ...
Name - cloudfront.net
... through an object—can only use DEAD cells. (Transmission Electron Microscope 1 MILLION stronger than light microscope and Scanning Electron Microscope can produce REALISTIC images. The Cell Theory A. Mid 1800’s, 3 main ideas 1. All organisms are made of one or more CELLS. 2. A cell is the basic unit ...
... through an object—can only use DEAD cells. (Transmission Electron Microscope 1 MILLION stronger than light microscope and Scanning Electron Microscope can produce REALISTIC images. The Cell Theory A. Mid 1800’s, 3 main ideas 1. All organisms are made of one or more CELLS. 2. A cell is the basic unit ...
the cell cycle - Falmouth Schools
... • Microtubules from 1 pole attach to 1 of 2 kinetochores (special regions of centromere), microtubules from other pole attach to other kinetochore. ...
... • Microtubules from 1 pole attach to 1 of 2 kinetochores (special regions of centromere), microtubules from other pole attach to other kinetochore. ...
Test Review: Unit 3 Cells and microscopes Directions: Answers do
... 13. What is cell differentiation? 14. What is the function of: a. Epithelial cells: b. Bone cells: c. Nerve cells: 15. What determines the function of a cell? 16. Which organelle contains the instructions that built these cells? Why aren’t the cells all the same? 17. What tool allowed scientists to ...
... 13. What is cell differentiation? 14. What is the function of: a. Epithelial cells: b. Bone cells: c. Nerve cells: 15. What determines the function of a cell? 16. Which organelle contains the instructions that built these cells? Why aren’t the cells all the same? 17. What tool allowed scientists to ...
Chromosomes and Mitosis - cK-12
... During anaphase, sister chromatids separate and the centromeres divide. The sister chromatids are pulled apart by the shortening of the spindle fibers. This is like reeling in a fish by shortening the fishing line. One sister chromatid ...
... During anaphase, sister chromatids separate and the centromeres divide. The sister chromatids are pulled apart by the shortening of the spindle fibers. This is like reeling in a fish by shortening the fishing line. One sister chromatid ...
Biology Notebook/Study Guide
... Notebooks are due the day of the test. Late notebooks will be penalized 5 points per day. Assignments must be in the order listed and points for graded assignments must be written in the proper space. If an assignment is missing or late, the appropriate box must be checked. A minimum of 5 points wil ...
... Notebooks are due the day of the test. Late notebooks will be penalized 5 points per day. Assignments must be in the order listed and points for graded assignments must be written in the proper space. If an assignment is missing or late, the appropriate box must be checked. A minimum of 5 points wil ...
Fertilization and meiosis
... The cell divides so each new daughter cell only contains one chromosome from each pair; 23 chromosomes in total. In the second round of division: In each cell, the chromosomes align in the centre and its chromatids are pulled apart into separate halves of the cell. Each cell divides again, so ...
... The cell divides so each new daughter cell only contains one chromosome from each pair; 23 chromosomes in total. In the second round of division: In each cell, the chromosomes align in the centre and its chromatids are pulled apart into separate halves of the cell. Each cell divides again, so ...
Name
... Homologous chromosomes are the same size & shape and carry the same genes. Note that they may carry different versions of the genes (called alleles). This split is needed because since sexual reproduction requires two parents, if there isn’t a reduction of chromosomes, then the offspring would hav ...
... Homologous chromosomes are the same size & shape and carry the same genes. Note that they may carry different versions of the genes (called alleles). This split is needed because since sexual reproduction requires two parents, if there isn’t a reduction of chromosomes, then the offspring would hav ...
All About Cells - Exploring Nature
... Each cell has a protective outside layer called the plasma membrane. The plasma membrane lets certain things into the cell that it needs, but keeps other things out. This is called semipermeable. Inside the cell is a watery medium that everything floats in called cytoplasm. The cytoplasm contains al ...
... Each cell has a protective outside layer called the plasma membrane. The plasma membrane lets certain things into the cell that it needs, but keeps other things out. This is called semipermeable. Inside the cell is a watery medium that everything floats in called cytoplasm. The cytoplasm contains al ...
study of cytological method and genetic
... Cytogenetics is a branch of genetics that is concerned with how the chromosomes relate to cell behaviour, particularly to their behaviour during mitosis and meiosis.[1] Techniques used include karyotyping, analysis of G-banded chromosomes, other cytogenetic banding techniques, as well as molecular c ...
... Cytogenetics is a branch of genetics that is concerned with how the chromosomes relate to cell behaviour, particularly to their behaviour during mitosis and meiosis.[1] Techniques used include karyotyping, analysis of G-banded chromosomes, other cytogenetic banding techniques, as well as molecular c ...
presentation source
... depolymerization of kinetochore microtubules at kinetochore end • Sister chromatids remain intact and travel together to either pole • Homologue separation is not necessarily by parental assignment ...
... depolymerization of kinetochore microtubules at kinetochore end • Sister chromatids remain intact and travel together to either pole • Homologue separation is not necessarily by parental assignment ...
Mitosis and Meiosis Study Guide
... 18. What type of chromosomes are lined up in the middle of the cell during metaphase of meiosis I (hint: remember they are in pairs)? ...
... 18. What type of chromosomes are lined up in the middle of the cell during metaphase of meiosis I (hint: remember they are in pairs)? ...
Metaphase I
... reciprocal segments of DNA by homologous chromosomes at the beginning of meiosis. Fertilization is the random joining of 2 ...
... reciprocal segments of DNA by homologous chromosomes at the beginning of meiosis. Fertilization is the random joining of 2 ...
Ch 5 Vocab Practice
... specifically, the division of the cytoplasm and organelles 5. the end, or final, phase of rnitosis 6. the division of a prokaryotic cell into two prokaryotic cells 7. the middle part of a chromosome that looks pinched together and is the place where sister chromatids are attached to each other 8. a ...
... specifically, the division of the cytoplasm and organelles 5. the end, or final, phase of rnitosis 6. the division of a prokaryotic cell into two prokaryotic cells 7. the middle part of a chromosome that looks pinched together and is the place where sister chromatids are attached to each other 8. a ...
Mitosis
Mitosis is a part of the cell cycle in which chromosomes in a cell nucleus are separated into two identical sets of chromosomes, each in its own nucleus. In general, mitosis (division of the nucleus) is often followed by cytokinesis, which divides the cytoplasm, organelles and cell membrane into two new cells containing roughly equal shares of these cellular components. Mitosis and cytokinesis together define the mitotic (M) phase of an animal cell cycle—the division of the mother cell into two daughter cells, genetically identical to each other and to their parent cell.The process of mitosis is divided into stages corresponding to the completion of one set of activities and the start of the next. These stages are prophase, prometaphase, metaphase, anaphase, and telophase. During mitosis, the chromosomes, which have already duplicated, condense and attach to fibers that pull one copy of each chromosome to opposite sides of the cell. The result is two genetically identical daughter nuclei. The cell may then divide by cytokinesis to produce two daughter cells. Producing three or more daughter cells instead of normal two is a mitotic error called tripolar mitosis or multipolar mitosis (direct cell triplication / multiplication). Other errors during mitosis can induce apoptosis (programmed cell death) or cause mutations. Certain types of cancer can arise from such mutations.Mitosis occurs only in eukaryotic cells and the process varies in different organisms. For example, animals undergo an ""open"" mitosis, where the nuclear envelope breaks down before the chromosomes separate, while fungi undergo a ""closed"" mitosis, where chromosomes divide within an intact cell nucleus. Furthermore, most animal cells undergo a shape change, known as mitotic cell rounding, to adopt a near spherical morphology at the start of mitosis. Prokaryotic cells, which lack a nucleus, divide by a different process called binary fission.