ecosystems and genetics
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| traits | all of the features that an organism inherits
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| gene | part of the DNA code on a chromosome
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| genotype | the genes that an organism has - its genetic make up
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| phenotype | the combination of the genetic make up and the environment's effect on that make up.
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| genetics | the study of heredity
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| allele | the various forms of a gene
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| dominant alleles | shows their effect on the phenotype whenever they are present int he genotype
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| recessive alleles | shows their effect on the phenotype only whenever two of them are present in the genotype
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| Punnett Square | a probablity to chart to help us make and understand genetic predictions
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| evolution | the change in genetics of a species over time; proposed by Darwin and Wallace
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| natural selection | organism which are better adapted to an environment survive and reproduce at greater rates than organisms that are not.
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| mutation | process in which DNA changes results in new alleles
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| adaptive radiation | the production of many species from one ancestral species
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| extinction | occurs when the last individual of a species dies.
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| heterozygous | organisms with different alleles for the same trait (hybrid); ex. Bb
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| homozygous | organism with same alleles (purebred); ex. BB or bb
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Created by:
aberndt
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