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control center for cell
chromosomes are located there |
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| a structure composed of DNA that contains genetic material( why we look and are the way we are |
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| division of one cells nucleus into two identical daughter cell nuclei |
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| only needs one parent or one cell, does not need fertilization, to pass on genetic information |
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requires two parents and fertilization to provide genetic information
sperm+ egg or pollen in plants |
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| division of one parent cell into four daughter cells; reduces the number to 1/2 |
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| male and female sex cells that combine to form a zygote during fertilization |
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| fertilized egg cell that is formed when two gametes fuse |
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| process by which an egg cell and sperm cell untie to form a zygote |
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| a maternal/paternal pair of chrom. that line up with their replicates on the same spindle during MEOSIS. the two chrom. have the same genetic traits but differ in their detail |
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| two identical alleles for a given trait (either 2 rec. or 2 dom) |
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| mixed- 1 dominant 1 recessive |
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| two capital letters (2 dom) |
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| two lower case or two recessive traits |
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| two alternate versions of a gene for a particular trait- 1 for each parent |
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| in an individual containing two allelic forms of a gene, one is expressed to the exclusion of the other |
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| when you get two alleles at odd with each other |
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come from parent generation- 1st generation
=f1 2nd generation = f2 |
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| a segment of DNA that contains genetic info for a given trait |
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| the genetic makeup of an organism |
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| 1 pair of homologous chromosomes |
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| the failure of one or more pairs of homologous chromosomes to separate normally during nuclear division- abnormal distribution of chromosomes in daughter cells |
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| the way you look the way you do |
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| determines chances of dom and rec. |
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| the trait that doesnt show |
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| the formation of new combinations of genetic material due to the crossing over during meiosis or due to genetic material |
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| genes that are close together on the same replicated chrom that are linked |
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| used to determine an individual exhibiting a dom. trait |
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| when gametes are formed during meiosis the two chrom. of each homologous pair separate randomly |
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