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45 Cards in this Set
- Front
- Back
Null hypothesis |
Nothing happens, no significant change. |
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Alternative hypothesis |
The opposite of original hypothesis |
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Scientific method |
1) observation 2) form a question 3) form a hypothesis 4) conduct an experiment 5) analyze the data and draw a conclusion |
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Base |
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Substage light |
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Fine focus knob |
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Coarse focus knob |
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Arm |
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Objective lense |
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Revolving nose piece |
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Body tube |
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Eye piece |
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Condenser |
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Iris diaphragm |
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Mechanical stage |
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Interphase |
Part of cell cycle where no division occurs Consists of G1, S, & G2 |
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G1 |
First growth phase |
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S phase |
Everything is copied DNA synthesis |
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G2 |
Health and activity |
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M phase |
Part of cell cycle where division occurs Consists of mitosis and cytokenises |
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Mitosis |
Division of the nucleus whereby each daughter cell receives the same compliment of DNA that the parent cell possesed |
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Cytokenises |
Actual splitting of the cell |
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Prophase |
Nucleus disappears and the mitotic spindle apparatus forms 4 chromosomes present Replicated chromosomes 8 chromatids Diploid cell |
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Metaphase |
Chromosomes line up down the middle and attached to the spindle fibers at the centromere 4 chromosomes present Replicated chromosomes 8 chromatids present |
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anaphase |
Chromatids split from each other and become individual chromosomes Unreplicated chromosomes 8 chromosomes present 0 chromatids present |
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Telophase |
The nuclei reform and the cell starts to split 2 nuclei in the cell 8 chromosomes 0 chromatids |
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Prophase |
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Metaphase |
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Anaphase |
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Telophase |
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Chromosome |
Long threadless DNA molecule found in nucleus |
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Sister chromatids |
When two chromosomes are together they are sister chromatids |
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Centromere |
Place where the pair of homogenous duplicated chromosomes are attached |
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Microtubules |
Spindle fibers |
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Cell plate |
Precursor to cell wall |
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Somatic cell |
Any cell of a living organism other than the reproductive cells |
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Gamete |
Mature happiness male or female German cell that is able to unite with another of the opposite sex in sexual reproduction to form a zygote |
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Zygote |
Diploid cell resulting from the fission of two haploid gametes |
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Ploidy |
Number of sets of chromosomes in a certain or in the cells of an organism |
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Synapsis |
Homologous chromosomes pairs in meiosis I |
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Haploid |
n=1 complete sets of chromosomes |
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Diploid |
2n=2 complete sets of chromosomes |
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Homologous recombinatiom |
Crossing over |
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Recombinant chromosome |
Chromosome with genes from the other chromosome |
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Independent assortment |
The Homologous pairs can switch with each other |