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15 Cards in this Set
- Front
- Back
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paired structures made up of strands of chromated which contains DNA and protein. They are made of many genes joined together
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chromosomes
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to carry genes from parent to offspring
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function of chromosomes
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through the genes which are passed on to offspring through the chrosomes in the sex cell
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how are trais interited
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the process of reducing the number of chromosomes in a cell by half to form sex cells
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meiois
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in order to continue their species from generation to generation
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why organisms reproduce
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sexual reproduction (cell division) unicellular organism
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different forms of reproduction
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a change in a gene or chromosome, reduces C or may increase an organism's chance of survival
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a mutation
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a mistake in DNA replication or chrosomes don't seperate completely
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how do mutations occur
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dominat-trait is expressed or visible/recessive trait not expressed and not visible, co-dominant/both trais or alleles are expressed
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basic pattern of inheritance in genes
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different form of gene or hair H=dominate allele for brown hair
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allele
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a chart that predicts the probability of an offspring having a particular trait
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a purrett square
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an organism physical appearance
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a pnenotype
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an organism's allele combination or genetic makeup
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a genotype
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2 dominate or 2 recessive alleles
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homoygous genetype
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one dominate and one recessive allele
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heterozygous genotype
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