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Published byConrad Malone Modified over 8 years ago
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TRANSCRIPTION AND TRANSLATION Vocabulary
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GENE EXPRESSION the appearance in a phenotype characteristic or effect attributed to a particular gene
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MUTATIONS A change in the genetic material of a cell Can be harmful or beneficial Mutagen- causes the change such as radiation, smoking, disease etc
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DIFFERENT TYPES OF MUTATIONS Point mutation
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DIFFERENT TYPES OF MUTATIONS Frameshift
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RNA POLYMERASE Links together nucleotides during transcription using DNA as a template
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RNA INTERFERENCE RNAi is a silencing complex. Stops gene expression by turning off the gene. http://www.pbslearningmedia.org/resource/lsps07.sci.life.gen.rnai/rnai-discovered/
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POLYPLOIDY Organisms has an extra set of chromosomes Polyploidy plants are usually bigger and stronger
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REGIONS ON GENES Exons coding regions on genes Introns noncoding regions on genes
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During transcription, the entire gene is copied into a pre-mRNA, which includes exons and introns. During the process of RNA splicing, introns are removed and exons joined to form a contiguous coding sequence.
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OPERON A group of genes that are regulated together. They usually have a related function. Lac Operon turns off expression by binding to the operator.
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REGULATION OF GENE EXPRESSION IN PROKARYOTES PROMOTER Site where transcription can begin. Helps RNA polymerase bind to gene site to start process. OPERATOR Blocks or stops transcription
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REGULATION OF GENE EXPRESSION IN PROKARYOTES CONT. TATA Box A TATA box is a DNA sequence that indicates where a genetic sequence can be read and decoded. It is a type of promoter sequence, which specifies to other molecules where transcription begins
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HOMEOTIC GENES Homeotic genes are genes which regulate the development of anatomical structures in various organisms such as insects, mammals, and plants.
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HOMEOTIC GENES Homeotic genes are genes which regulate the development of anatomical structures in various organisms such as insects, mammals, and plants.
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HOMEOTIC GENES Homeotic genes are genes which regulate the development of anatomical structures in various organisms such as insects, mammals, and plants.
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