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The cell cycle includes what 2 important aspects?
Repair/growth and reproduction
Some organisms reproduce by simple cell division where a single cells duplicates its genetic material. What is this called?
What is the offspring called when only 1 parent supplies all the genetic information?
Clone – single cell and multi-celled organisms can reproduce this way
2 parents genetic information is used to create a unique 3 rd organism. What is this called?
What is the name of specialized sex cells?
Gametes (sperm = male egg=female)
Where are genes found?
In the nucleus of a eukaryotic cell
What is the difference between chromatin and chromatid?
Chromatin – granules of DNA that turn into the strands of chromatid chromatid – strands of DNA or half the“X” of a chromosome
True or false: The number of chromosomes an organism has depends on its size?
False! Example: humans have 46 while silkworms have 54
What holds together the 2 strands of chromatids?
What are the 5 phases of the cell cycle?
I - Interphase P - Prophase M - Metaphase A - Anaphase T - Telophase
What occurs during Interphase?
-95% of a cell’s life is in Interphase -growth, development and repair -looks like an ordinary cell
“Property” – X marks the spot: -1 st phase of mitosis -chromosomes appear and duplicate
“mets” line up -chromosomes move to the center of the cell -spindle fibers form and attach to centromeres
“Ana banana split” -chromosomes are pulled apart and move to the poles of the cell
“telephone” – 2 people talking: -2 new daughter cells are formed -cell heads back into Interphase -cells are more efficient at this size to perform all functions
What is the division of the cytoplasm called?
What is the sequence of the cell cycle using letters?
What is a carcinogen?
Something that causes cancer by mutating rapidly dividing and multiplying cells
The Cell Cycle & Cell Division. NOTES: 1. Write the purpose for each type of cell division. (mitosis & meiosis) 2. Draw, label and describe each phase.
Meiosis. Now that you know all about DNA…. How is DNA passed from parent to offspring? How is DNA passed from parent to offspring? There are two main.
A. All multicellular organisms depend on cell division for growth. B. Repair 1. In order to sustain life, the organism must replace dead or damaged cells.
What do they do? Stages What’s Going on? What is It?
The cell cycle has four main stages The cell cycle is a regular pattern of growth, DNA replication, and cell division.
Mitosis Asexual cell division!! Begins in the nucleus of a cell.
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How do baby animals grow to be adults?. Why do animals shed their skin?
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Mitosis Cell Division. The Cell Cycle The regular sequence of growth and division that cells undergo. A pumpkin grows by size by increasing both the size.
MEIOSIS. Reproduction Why is reproduction important? Asexual Reproduction – Requires 1 parent – Single-celled organisms divide into 2 cells (MITOSIS)
Cell Division Mitosis and Meiosis. Mitosis Asexual reproduction Purpose: Growth, maintenance, and repair.
Cell Cycle IPMATC. Cell Cycle 3 Parts: – Interphase – Mitosis Prophase Metaphase Anaphase Telophase – Cytokinesis.
MITOSIS & CELL CYCLE. THE CELL CYCLE A TYPICAL CELL GOES THROUGH TWO DISTINCT PERIODS: 1.A PERIOD OF GROWTH 2.A PERIOD OF DIVISION.
Reduction of Chromosomes. Mitosis Cell duplication (or reproduction) where one cell creates two genetically identical daughter cells Cellular reproduction,
Meiosis and Sexual Reproduction n n 2n Review Question Discussion Question.
Cell Division. Why? Cells divide for many reasons: – In order to stay small Diffusion occurs at a faster, more efficient rate in smaller cells. – DNA.
Differences Plant: Plant cell mitosis is similar to animal cell mitosis, but there are differences. – Plant cells form spindle fibers during mitosis but.
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REPRODUCTION 2 Kinds of Reproduction Asexual -- One parent Sexual -- Two parents Specifically-- Sperm and Egg.
Cell Reproduction Chapters 9 & 11. Types of Reproduction Mitosis Asexual – only 1 parent needed & the offspring are identical to the parent cell. Meiosis.
The Cell Cycle Cell Division Onion Cells Cell Division A cell must divide to: Grow Reproduce Repair damaged tissues.
Activity #44 PHASES OF THE CELL CYCLE. 6 Phases of the Cell Cycle 1.Interphase 2.Prophase 3.Metaphase 4.Anaphase 5.Telophase 6.Cytokinesis.
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