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Federal Agency for Social Development
Federal Agency for Social Development

... 1.1. Bacterial Chromosome A segment of DNA that specifies the production of a particular polypeptide chain is called a gene and the total complement of genes in a cell is known as the cell's genome. Most bacteria contain enough DNA to code for the production of 1000 to 3000 different types of polyp ...
No Slide Title
No Slide Title

... Structure of Prokaryotic promoters Three DNA sequences (core regions) 1) Pribnow box at -10 (10 bp 5’ to transcription start) 5’-TATAAT-3’ determines exact start site: bound by s factor 2)” -35 region” : 5’-TTGACA-3’ : bound by s factor 3) UP element : -57: bound by a factor Other sequences also of ...
Slide 1
Slide 1

... organism is built up from the tiny building blocks of life. These rules are encoded in genes. • Genes are connected together into long strings called chromosomes. • Genes + alleles = genotype. • Physical expression of the genotype = phenotype. ...
Section 3 - Applying statistical Tests to Microarray Data
Section 3 - Applying statistical Tests to Microarray Data

... hybridizations in which the same mRNA sample is labelled red & green: ...
Evidence for evolution factsheet
Evidence for evolution factsheet

... While Darwin, Wallace and Lamarck based their understanding of evolution on what they could see with the naked eye. More recently though, we have also been able to look at our DNA and protein structures, and by comparing DNA sequences of genes from one organism to another, we can learn an enormous a ...
Teaching genetics with cats and flies
Teaching genetics with cats and flies

... necessary and so I won’t mention a possible third allele (Abyssinian). It might interest the students to mention that all cats of course have the tabby gene but its expression is only visible if they have a particular genotype for a second gene (agouti), which results in the patterning of each indiv ...
Exercise
Exercise

... In how many experiments was mat1a observed up-regulated, in liver? Can you find out more information about these experiments? In which experiment is mat1a up-regulation statistically more significant? ...
Mutations and Genetic Disorders
Mutations and Genetic Disorders

... Mutation: Change in the genetic structure of an organism Types: 1. Gene mutations – changes to one or a few nucleotides in a gene – alters the expression of the gene’s protein and can affect the cell 2. Chromosomal mutations – changes due to errors in cell division, usually meiosis that alters the ...
Chapter 24
Chapter 24

... Intro to Cancer Cancer is caused by the failure of genetic mechanisms that control the growth and proliferation of cells. In most cases, cumulative damage to multiple genes (the "multi-hit" model) via physical and chemical agents, replication errors, etc. contribute to oncogenesis. However, a perso ...
What Genes Do - Michigan State University Extension
What Genes Do - Michigan State University Extension

... of their parents. This is true for every living thing, whether plant or animal. In the 1860s, Gregor Mendel, an Austrian monk, decided to study pea plants to find out why parents pass along some but not all of their traits to their offspring. He looked at single characteristics — for example, plant ...
10-2 & 11-2 Mendel Genetics 2010
10-2 & 11-2 Mendel Genetics 2010

... Exceptions to Simple Dominance Does the segregation of one pair of alleles affect the segregation of another pair of alleles? • For example, does the gene that determines whether a seed is round or wrinkled in shape have anything to do with the gene for seed color? Must a round seed also be yellow? ...
Chapter 15
Chapter 15

... mountains and one living in the valley, no longer mate or exchange alleles in their gene pools. What can happen? ...
Gene duplication and divergence in the early evolution of
Gene duplication and divergence in the early evolution of

... Gene duplication during early vertebrate evolution Do vertebrates have more genes than other animal taxa? The number of predicted genes in the human genome, when compared to the number in the sequenced genomes of Drosophila and Caenorhabditis elegans, suggests that they do [7,8]. But such comparison ...
Review Worksheet Exam 3
Review Worksheet Exam 3

... Make a series of sketches that follows the fate of chromosome 8 (an autosome) throughout an organism’s lifecycle. 1. Start with a sperm and an egg (both of which supply a version of chromosome 8). Remember that each version of chromosome 8 has different alleles (different types of the same genes) so ...
Chapter 20 Practice Multiple Choice
Chapter 20 Practice Multiple Choice

... 4. A principal problem with inserting an unmodified mammalian gene into a bacterial plasmid, and ...
Human Traits Lab
Human Traits Lab

...  To determine personal phenotypes and genotypes for some observable traits  To determine the frequencies (%) of dominant and recessive traits in a population Introduction: Heredity is the passing on of traits, or characteristics, from parent to offspring. The units of heredity are called genes. Ge ...
File
File

... Because males have only one X chromosome (hemizygous), any male receiving the recessive allele from his mother will express the trait. The chance of a female inheriting a double dose of the mutant allele is much less than the chance of a male inheriting a single dose. Therefore, males are far more l ...
Study Guide - Ramsey Lab
Study Guide - Ramsey Lab

... Terminology: DNA, RNA, transcription, translation, mRNA, tRNA, ribosomes, sense strand, antisense strand, codon, anticodon, amino acid, polypeptide, protein Locations of DNA replication, transcription, and translation in the cell Role of ribosomes in gene expression and their location in the cell Ma ...
Familial Dysautonomia Is Caused by Mutations of the
Familial Dysautonomia Is Caused by Mutations of the

... intron 20 donor splice site were amplified from DNA purified from blood by use of primers 50-GAGAACAACAAGATTCTGC-30 and 50AGTCGCAAACAGTACAATGG-30 in the presence of a[33P]-dATP. The amplified products were denatured and fractionated on a nondenaturing 5% acrylamide gel at 47C. Circles denote females ...
Mutations
Mutations

... insertions or deletions may shift the reading frame which may cause the remaining sequence of nucleotides to be “read” as different codons ...
Welcome AP Super
Welcome AP Super

... • Sickle-cell Disease (Fig: 5.21 Pg. 84) – This disorder is the most common genetic disorder within the black population. Other populations can get it too. It is not exclusive. – It affects 1 in 400 births. – The 6th Amino Acid is changed (Glutein  Valine) in the PRIMARY sequence of one of the prot ...
Supplementary Material and Methods
Supplementary Material and Methods

... performed in parallel with a control reaction without addition of reverse transcriptase (-RT control) using a Roche 1st strand cDNA synthesis kit (Roche, Mannheim, Germany). cDNA was diluted to single molecule level and a PCR with the SNP-specific primers was performed. –RT control reactions were u ...
Genetics Terms You`ve Gotta Know
Genetics Terms You`ve Gotta Know

...  If your mom gave you a different allele than your dad, you are heterozygous for that trait ...
epigenetics
epigenetics

... • Each chromosome has specific genes that may be activated depending on the job or function of that particular cell. • Most humans have a pair of homologous, or similar, chromosomes. Helps to have a ...
Chapter 12 Patterns of Inheritance
Chapter 12 Patterns of Inheritance

... • One allele of each gene / homologous chromosome 2) Alleles of a gene segregate from one another during meiosis • Law of Segregation • Which allele enters which gamete occurs by chance 3) Differing alleles can mask one another if occupying same cell • Dominant Allele: Allele expressed (observed) • ...
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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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