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44 Cards in this Set
- Front
- Back
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What phase is an intermediary |
Interphase |
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The intermediary phase mentioned on number 1 is made up of 3 phases of its own. Name them |
G1, S, G2 |
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What is a gamete and name two |
The reproductive types, sperm and egg |
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The process of gametes combining is called what |
Fertilization |
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What process during telophase actually splits the cell in two |
Cytokinesis |
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When does DNA, be specific |
S phase |
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When do cellular organelles in the cytoplasm replicate? (Which interphase phase) |
G2 |
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Where does mitosis take place |
Nucleus |
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What tiny organelle holds chromatids and chromosomes together |
Centromere |
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What do the spindle fibers attach to (two things) |
Centromere and chromosome |
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List all the events during mitotic prophase |
The chromosomes condense from chromatin The nuclear envelope disappears Nucleolus disappears Centrosome move to opposite poles Spindles start to form out of centrosome |
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What happens during mitotic metaphase |
Chromosome are lined up on equator of the cell Spindle fibers attach to centromeres |
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What happens during mitotic anaphase |
The centromeres divide The spindle fibers contract and the chromosomes are pulled to opposite poles |
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What happens during mitotic telophase |
The cell divides The spindles disintegrates The nuclear envelope re-forms around two sets of chromosomes Nucleolus reappeared Cytoplasm is divided into 2 separate cells |
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Which phase of interphase would you find the cell just growing and metabolizing normal products |
G1 |
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When DNA gets tangled and a gene moves from one chromatid to its sister chromatid what has happend |
Crossing over |
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In what phase does crossing over happen |
Prophase 1 |
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When cytokinesis occurs in animal cells what is the name of the shape that appears |
Cleavage furrow |
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Cytokinesis occurs in plant cells what forms between the new cells |
Cell plate |
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If the chromosome count is the same in the daughter cells as in the parent cell how is this count described |
2n |
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If the chromosome count is half in the daughter cells as in the parent cells how is it described |
1n |
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What is a fertilized egg called |
Zygote |
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When the egg and sperm come together what has happend |
Fertilization |
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How many human chromosomes are in normal body cells |
22 pair 44 chromosomes |
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How many human chromosomes are in sex cells (haploid number) |
23 chromosomes |
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Neurotic phase in which tetrads line up in the center of the cell |
Metaphase 1 |
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Meiotic phase where tetrads spilt and follow the spindle fibers to the centrioles |
Anaphase 1 |
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Meiotic phase where chromatids split and follow the spindle fibers to the centioles |
Anaphase 2 |
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Meiotic phase in which the chromosomes line up in the center of the cell |
Metaphase 2 |
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Neurotic phase where 4 haploid cells appear |
Telophase 2 |
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What are two general kinds of reproduction |
Mitosis Meiosis |
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Describe the benefits of meiosis |
Increased genetic variety Increases the genetic pool |
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Meiotic phase where tetrads may get tangled and cross over |
Prophase 1 |
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What is the general name for the proteins that DNA wraps around when it condenses before and during prophase if mitosis |
Histones |
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Is chromosomes number related to the complexity of the organism give an example |
No, humans 46 dog 78 |
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Body chromosomes are called what |
Autosomes |
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Prokaryotes reproduce by what process |
Binary fission |
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When a cell does not ever reproduce it goes into what phase of interphase |
G0 |
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Which phase of the cell cycle is not part of mitosis |
Interphase |
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Time slots when enzymes review what is going on and the cell decides whether it will divide, just metabolize or die is called what |
Checkpoints |
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List the phases of mitosis in order |
Prophase Metaphase Anaphase Telephase |
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If mitosis is repeated over and over and is out of control what disease is likely to occur |
Cancer |
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The meiotic production of sperm happens in a process called what |
Spermatogensis |
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The meiotic production of eggs happens in a process called what |
Oogenesis |
