classification is when living organisms are put into groups because of their characteristics & features
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what is a species?
species is a group of organisms that can breed with each other & produce fertile offspring
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what is variation?
variation is the differences between living organisms
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give two examples of variation
continuous variation & discontinuous variation
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what is evolution?
evolution is when the enviroment changes natural selection will take place in the characteristics of a species changing gradually from generation to generation
vertebrates are living organims with a backbone & invertebrates are animals without a backbone
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what is natural selection?
individuals of a species show variation, this can suggest that some individuals will be better able to survive in their enviroment & produce more healthier offspring than others
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what is offspring?
offspring is the scientific name for babies
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what is genes?
a short piece of Dna at a particular point on a chorosome, a gene codes for characteristic
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what is a allele?
when a gene comes in different forms
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what is phenotype?
the characteristics will show at least one copy is present in the chorosone
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what does a genotype show?
the alleles in a individual
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what is a dominant allele? & what is the effect of it?
an allele that produces the same phenotype whether its paired allele is identical or different & its effects are it shows at least one present in the genotype
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what is a recessive allele? what is the effect of it?
a recessive allele is an allele that produces its characteristic phenotype only when its paired allele is identical. & the effects are it shows at least two copies in the genotype
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what is monohybrid inheritence?
a characteristic is controlled by a single gene
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what are genetic disorders?
when some genes have faulty allels that cause health problems
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Other cards in this set
Card 2
Front
what is a species?
Back
species is a group of organisms that can breed with each other & produce fertile offspring
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