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33 Cards in this Set
- Front
- Back
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What is cytokinesis? |
Division of the cell cytoplasm |
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What are Chromosomes? |
Several threadlike bodies consisting of chromatin, carry genes in linear order what |
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What is the cell cycle? |
Cycle of growth & asexual reproduction of a cell |
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What is Prophase? |
Nuclear envelope breaks down & chromosomes thicken |
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What happens in metaphase? |
Spindle fibers form &a chromosomes move to the middle. |
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What happens in anaphase? |
2n-1n& they are pulled apart |
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What happens in telophase? |
Cm/Cw separate & nuclear envelope reforms. |
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What happens in interphase? |
Growth 1n-2n& split |
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What is centromere? |
Point in a chromosome where it's attached to a spindle fiber during cell division |
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What is the metaphase plate? |
Plane cells section in the middle with chromosomes on it |
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What is Heredity? |
Passing on of a physical or mental characteristics from one generation to another |
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What is genetics? |
Study of heredity & variation of an organism |
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What is self pollination? |
Pollination taking pollen from one flower given to the same flower |
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What is Cross pollination? |
Transfer of pollen from one flower to another |
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What is a trait? |
Genetically determined characteristic |
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What is purebred? |
Bred from parents of the same breed |
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What is a hybrid? |
Offspring of 2 plants or animals of different species or variates. |
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What's a gene? |
Unit of heredity that is transferred from a parent to offspring |
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What is dominance? |
One expressed, the other excluded |
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What's recessive? |
Trait not shown unless two are present |
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What's a zygote? |
Diploid cell resulting from the fusion of 2 haploid gametes |
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What are gametes? |
Mature haploid m/f germ cell that is able to unite with another of opposite gender and reproduce |
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What are alleles? |
1 of 2 or more alt. Forms of a gene that arise by mutation |
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What are alleles? |
1 of 2 or more alt. Forms of a gene that arise by mutation |
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What are chromatids? |
Each of the 2 threadlike strand in which a chromosome divides longitudinally during cell division |
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What are chromatins? |
Material of which chromosomes of organisms are composed |
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What is genetic variation? |
Increases genetic diversity in and amount population and variation of alleles and genes |
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What's a haploid? |
Single set of unpaired chromosomes |
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What's a haploid? |
Single set of unpaired chromosomes |
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What's a diploid? |
2 Set of chromosomes -1 from each parent |
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What's a dihybrid cross? |
Cross between 2 different line that differ in 2 observed traits |
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What's a dihybrid cross? |
Cross between 2 different line that differ in 2 observed traits |
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What's a genotype? |
Genetic constitution of an organism |
