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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| homozygous | when two alleles are the same or identical BB, rr, tt,GG
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| heterozygous | when two alleles are different Gg, Hh, Tt
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| phenotype | the physical appearance of a trait-yellow, tall, round, wrinkled
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| genotype | the genetic make-up, the alleles (letters), Gg, TT, Rr, gg
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| dominant | the trait that is expressed and only needs one capital letter
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| recessive | the trait that is hidden unless both alleles are present bb, rr, gg, tt lowercase letters
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| alleles | the alternate forms of a gene
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| incomplete dominance | neither allele is completely dominant over another so the phenotype is a MIX of the two alleles, ex. red and white flowers make pink rr, ww, rw
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| codominance | both alleles are dominant so in the heterozygous form you see both alleles. AB blood type
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| sex-linked traits | occur on the X chromosome only
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| female | XX
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| male | XY
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| karyotype | shows the chromosomes in an organism also sex of organism and any abnormalities or genetic disorders
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| independent assortment | gene pairs segregate (separate) into gametes randomly and independent of each other GT, Gt, gT, gt
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| Punnett square | used to predict the offspring and determine probability
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| Mendel | father of genetics
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| GgTT x ggTt | dihybrid cross
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| A, B, O, AB | possible blood types
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Created by:
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