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Zoo/Bot 3333
Zoo/Bot 3333

... 1. It has been documented for many years that stress can have deleterious effects on health. A recently reported study out of the lab of a Nobel Prize winner has shown a link between stress and the immune system, and also shown that exercise may relate to immune function in a novel way. These studie ...
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The Childhood-Onset Epilepsy 40 Genes (3)

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Post-transcriptional Gene Silencing (PTGS)
Post-transcriptional Gene Silencing (PTGS)

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Chromosomal Inheritance pdf

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Unit 3 * Molecular Genetics

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No Slide Title

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Genetics Jeopardy

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Your Genes and Hearing Loss - South Coast Ear, Nose and Throat

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2. Be sure that your exam has 9 pages including this cover sheet.

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Chapter 15: The Chromosomal Basis of Inheritance
Chapter 15: The Chromosomal Basis of Inheritance

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NOVA`s Ghost in Your Genes
NOVA`s Ghost in Your Genes

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Regulation of Gene Expression Outline Objectives are first and

... E. Molecular basis for (most) epigenetic mechanisms: methylation of cytosines in the DNA a. The C must be followed by a G (CpG) for this to happen- the methylation sequence CpG is also CpG on the opposite strand. b. Methylation of C’s near the promoter region of a gene prevents transcription. This m ...
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PowerPoint Presentation - Chapter 17 From Gene to Protein.

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my_phylogeny1

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Double Helix With a Twist

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A T C G - National Angus Conference

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Gene



A gene is a locus (or region) of DNA that encodes a functional RNA or protein product, and is the molecular unit of heredity. The transmission of genes to an organism's offspring is the basis of the inheritance of phenotypic traits. Most biological traits are under the influence of polygenes (many different genes) as well as the gene–environment interactions. Some genetic traits are instantly visible, such as eye colour or number of limbs, and some are not, such as blood type, risk for specific diseases, or the thousands of basic biochemical processes that comprise life.Genes can acquire mutations in their sequence, leading to different variants, known as alleles, in the population. These alleles encode slightly different versions of a protein, which cause different phenotype traits. Colloquial usage of the term ""having a gene"" (e.g., ""good genes,"" ""hair colour gene"") typically refers to having a different allele of the gene. Genes evolve due to natural selection or survival of the fittest of the alleles.The concept of a gene continues to be refined as new phenomena are discovered. For example, regulatory regions of a gene can be far removed from its coding regions, and coding regions can be split into several exons. Some viruses store their genome in RNA instead of DNA and some gene products are functional non-coding RNAs. Therefore, a broad, modern working definition of a gene is any discrete locus of heritable, genomic sequence which affect an organism's traits by being expressed as a functional product or by regulation of gene expression.
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