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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
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