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DNA Microarray - School of Biotechnology
DNA Microarray - School of Biotechnology

... have obtained the gene expression matrix additional levels of annotation can be added either to the gene or to the sample. For example, the function of the genes can be provided, or the additional details on the biology of the sample may be provided, such as ʻdisease stateʼor ʻnormal stateʼ. • Depen ...
Chapter Four Part One - K-Dub
Chapter Four Part One - K-Dub

... more alike than fraternal twins in:  personality traits such as extraversion (sociability) and neuroticism (emotional ...
Removed DNA - Cloudfront.net
Removed DNA - Cloudfront.net

... that potentially lasts for enough generations to serve as a unit of natural selection”.(39) As such a gene is an inherited unit which is somewhere between a nucleotide and a chromosome. Systemic Concept: The gene is a combination of (one or more) nucleic acid (DNA or RNA) sequences, defined by the s ...
Chapter Four Part One - K-Dub
Chapter Four Part One - K-Dub

... more alike than fraternal twins in:  personality traits such as extraversion (sociability) and neuroticism (emotional ...
RNA and Protein Synthesis Quiz
RNA and Protein Synthesis Quiz

... D. UCU 21) The genetic code is based upon the reading of how many bases at a time? A. one B. two C. three D. four 22) Amino acids are held together by __?__ bonds. A. hydrogen B. peptide C. ionic D. high energy 23) How many codons are needed to specify three amino acids? A. 3 C. 9 B. 6 D. 12 24) One ...
Herbicide resistance - Howard University > Plant Biotechnology
Herbicide resistance - Howard University > Plant Biotechnology

... -Pectin degradation by Polygalacturonase (PG) cause softening -Antisense technology: sense RNA binds with antisense RNA -Takes twice as long as normal tomato -Was not commercially successful ...
Chromosome structure & Gene Expression
Chromosome structure & Gene Expression

... chromosomes. At low resolution, human chromosomes have 300 dark G bands and light interbands. At high resolution there are 2000 of such bands. • Banding pattern of G bands is species specific. • Bands are used to locate and map genes, especially useful when mapping disease-causing genes. For example ...
I. Mutations: primary tools of genetic analysis
I. Mutations: primary tools of genetic analysis

... What mutations tell us about gene structure: a. Mutations within the same gene usually fail to complement each other. The concept of a complementation group thus defines the gene as a unit of function. b. A gene is composed of a linear sequence of nucleotides in a discrete, localized region of a chr ...
GenomicVariation_11-22
GenomicVariation_11-22

... This is especially true of numerous types of cancers, where local amplifications and translocations increase the copy number of cell proliferation regulators, etc. ...
Presentation
Presentation

... Amniocentesis - a small amount of amniotic fluid (containing fetal tissues and cells) is extracted from the amniotic sac surrounding the developing fetus - the DNA is examined for genetic abnormalities Chorionic Villi Sampling (CVS) - the removal of a small piece of the placenta (chorionic villi) d ...
Chapt16_lecture
Chapt16_lecture

... gene expression. • Regulatory proteins bind to DNA to either block or stimulate transcription, depending on how they interact with RNA polymerase • Prokaryotic organisms are able to respond to changes in their environment by regulating gene expression. • Eukaryotic cells are able to maintain homeost ...
DNA and PROTEIN SYNTHESIS SYNTHESIS
DNA and PROTEIN SYNTHESIS SYNTHESIS

... genes, explain how they appear and function differently? -cells only transcribe those portions of genes that they need ...
Computational Diagnosis
Computational Diagnosis

... Expression Level of super gene i ...
7.1 Chromosomes and Phenotype
7.1 Chromosomes and Phenotype

... – What are the patterns of sex-linked traits? – How are Mendel’s observations related to genes on autosomes? – Why are males more likely than females to have sex-linked genetic disorders? – How are autosomal traits, including recessive genetic disorders that are carried in a population, related to M ...
File
File

...  In 1952, Rosalind Franklin and Maurice Wilkins produced an x-ray crystallography of the shape of DNA.  Scientists now know that DNA consists of long strands of nucleotides. Each nucleotide contains the following: a sugar (deoxyribose), a phosphate group, and a nitrogen base (either adenine, cytos ...
GE Nova Video Questions
GE Nova Video Questions

... found between 6.55 minutes and 10 minutes approx. ...
Unit A - Topic 3.0 Notes
Unit A - Topic 3.0 Notes

... The rungs are what make the variations. Each rung pairs up two of the following chemicals: guanine (G), cytosine (C), adenine (A), and thymine (T). The arrangement of these four chemicals creates the code that the cells are able to interpret. This is the genetic code of the organism. ...
Day 12: Genetics Part 2 Powerpoint
Day 12: Genetics Part 2 Powerpoint

... • There are many alleles for almost all genes – Many of them are functionally identical – Sometimes the function is different for different alleles – Some alleles are defective! ...
042310_recombinant_DNA2
042310_recombinant_DNA2

... –Makes walls more permeable to small DNA molecules –Can also be introduced by electroporation ...
Document
Document

... theory of inheritance.  Knew that natural selection acts on variation to cause adaptation in organisms, but didn’t know about some other forms of selection, and didn’t know about random drift. ...
Ch6Sec4 Reiforce Tratis Genes Alleles
Ch6Sec4 Reiforce Tratis Genes Alleles

... A gene is a segment of DNA that tells the cell how to make a particular polypeptide. The location of a gene on a chromosome is called a locus. A gene has the same locus on both chromosomes in a pair of homologous chromosomes. In genetics, scientists often focus on a single gene or set of genes. Geno ...
Lec 01 - History of Genetics... - Development of e
Lec 01 - History of Genetics... - Development of e

... pointed to DNA as the portion of chromosomes (and perhaps other nucleoproteins) that held genes. A focus on new model organisms such as viruses and bacteria, along with the discovery of the double helical structure of DNA in 1953, marked the transition to the era of molecular genetics. In the follow ...
Document
Document

... B.6.A Identify components of DNA and describe how information for specifying the traits of an organism is carried in the DNA. 1. Below is a strand of DNA. DNA in the cells exists as a double helix – what needs to be added to it to make it a double helix? Give the complementary nucleotide sequence. _ ...
Differentially Coexpressed Genes - Computational Diagnostics Group
Differentially Coexpressed Genes - Computational Diagnostics Group

... • We compared cytogenetically normal children to those with the phil+ translocation ...
Autosomal Recessive Inheritance
Autosomal Recessive Inheritance

... chromosome). One member of each pair of chromosomes has come from each parent. We each carry more than 20,000 genes in every cell in our body. Each gene produces a different protein and these proteins make ...
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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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