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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| Gamete | Haploid cells capable of fusion. Translate genes from one generation to the next in sexual reproduction.
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| Fertilisation | The union of two gametes to form a single cell called a zygote
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| Alleles | Different forms of the same gene
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| Dominant | The allele that prevents the recessive allele from being expressed
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| Recessive | The allele that is prevented from being expressed by a dominant allele
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| Phenotype | The physical makeup/appearance of an organism
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| Genotype | The genetic make up of an organism
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| Homozygous | The alleles are identical. Also known as pure breeding.
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| Heterozygous | The alleles are different
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| Progeny | Offspring that are produced
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| Co-Dominance | Neither allele is dominant or recessive with respect to the other. Both alleles are equally expressed in the heterozygous genotype to produce an intermediate phenotype
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| Law of Segregation | States that inherited characteristics are controlled by pairs of alleles. These alleles segregate at gene formation with one member from each pair being found in a gene
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| Monohybrid cross | Involves the study of a single characteristic
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| Dihybrid cross | Involves the study of two characteristics
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| Law of Independant assortment | States that either one of a pair of alleles is equally likely to join with either of another pair of alleles
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| Linkage | Genes are located on the same chromosome
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| Sex Linkage | A characteristic is controlled by a gene on an X chromosome
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Created by:
robweston
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