Genetics CC
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Species | Organisms capable of interbreeding and producing fertile offspring.
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| Heredity | The passing on of traits from parent to offspring by means of genes
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| Gene Expression | The process of using the information on the gene to make a protein
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| Gene | A unit of DNA which codes for the production of a specific protein
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| DNA profiling | Examining DNA for a pattern or band to compare against the DNA of another person.
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| Coding dna | That part of the chromosome which carries the infomation to make a protein
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| Non-coding dna | That part of the chromosome which does not carry the infomation to make a protein
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| Genetic screening | Testing for the presence of a specific gene to establish the presence or absence of that gene
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| Transcription | The process of producing mRNA using DNA as a template.
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| Translation | The process of making a protein using the mRNA code a template
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| Gamete | A haploid sex cell which is capable of fusion
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| Fertilisation | The fusion of 2 haploid gametes to form a diploid zygote
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| Allele | An alternative form of a gene
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| Homozygous | Has identical alleles for a trait
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| Heterozygous | Has different alleles for a trait
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| Genotype | The genetic make-up of an individual
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| Phenotype | Physical appearance of an organism
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| Dominance | One allele masks the expression of the other.
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| Recessive | Allele whose expression is masked by dominant allele
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| Incomplete Dominance | Neither allele masks the expression of the other.
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| Variation | Difference between members of species or population
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| Mutation | Change in the genetic make up
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| Genetic engineering | Manipulation or alteration of genes
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| Evolution | Inheritable change within a population or species in response to change in the environment by natural selection over time
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| Mendel’s 1st Law[Segregation] | Traits are controlled by pairs of alleles which separate at gamete formation. Each gamete carries only one allele for each trait
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| Mendel’s 2nd Law[Ind.Assortment] | During gamete formation each member of a pair of alleles may combine randomly with either of another pair
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| Linkage | Genes located on the same chromosome
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| Sex Linkage | Gene located on X- chromosome or on Y-chromosome
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| Non-nuclear Inheritance | DNA apart from that found in the nucleus e.g. mitochondria that is passed on to the next generation
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Created by:
Confey College
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