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19 Cards in this Set
- Front
- Back
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Polygeneic Inheritance is?
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a trait that is controlled by more than one gene
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Pedigree is?
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graphic representation of individuals family tree
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Karyotype is?
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chart showing photos of each pair of persons chromosomes
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Diploid is?
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in mitosis and is full chromosomes and all except gametes
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haploid?
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sex chromosomes, 1/2 of them.
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What was blending theory?
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said that the two things, like red and whit flower made pink. NO LONGER ACCEPTED
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Who was gregor mendel?
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worked with pea plants and discovered a lot about genes
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Cross pollination is?
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fertilization of plant's egg cell by pollen of another plant
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genes are?
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segmet of DNA code that is responsible for controlling traits
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What happens in Prophase 1?
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Chromosomes coil up, and spindle forms. Homologous chromosomes line up with each other forming a tetrad. Non sister chromosomes cross over, exchanging genetic material and results in different combos of alleles
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Metaphase 1?
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centromere of each attaches to a spindle fiber, pull tetrads to middle and homologous chromosomes line up side by side as tetrads.
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Anaphase 1?
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Homologous chromosomes separate and move to opposite ends of the cell. Occurs b/c the centromeres don't split. Makes sure each new cell gets only one chromosome from each pair.
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Telophase 1?
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Spindle is broken down, chromosomes uncoil, cytoplasm splits to get 2 new cells. each as 1/2 info of original cell. needs to split again cause chromosomes are still doubled.
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Prophase II?
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SPindle forms in each of the 2 new cells and attach to chromosomes.
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Metaphase II?
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Pulled to center of cell at random.
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Anaphase II?
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centromere of each chromosome splits, allowing sister chromatins to separate and move to oppsoite ends of the cell.
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Telophase II?
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nuclei re from, spindles break down, cytoplasm divides making 4 cells. End result is 4 haploid cells which will become gametes.
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Definition of dominant?
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an allele that produces the same phenotype whether its paired allele is identical, homozygous or different, heterozygous
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Definition of recessive?
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an allele that produces its phenotype only if its paired allele is identical, homozygous
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