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Cluster analysis
Cluster analysis

... Estimating number of clusters using the bootstrap There are other resampling (e.g. Dudoit and Fridlyand, 2002) and non-resampling based rules for estimating the number of clusters (for review see Milligan and Cooper (1978) and Dudoit and Fridlyand (2002) ). The bottom line is that none work very we ...
biology i honors capacity matrix unit vii: genetics
biology i honors capacity matrix unit vii: genetics

...  Since in all cells (except gametes) chromosomes are diploid (exist as a pair of chromosomes), each cell contains two genes for each trait, one on the maternal chromosome and one on the paternal chromosome.  The two genes may be of the same form or they may be of different forms. o These forms pro ...
Cell-cycle control in Caenorhabditis elegans: how the worm
Cell-cycle control in Caenorhabditis elegans: how the worm

... fertilized egg develops into an adult hermaphrodite or male. Each hermaphrodite produces around 300 progeny by self-fertilization, while hermaphrodite-male crosses can generate more than a thousand progeny. One of its major strengths is efficient genetics. Traditionally, this meant forward genetics, ...
Mechanisms of Nucleolar Dominance in Animals and Plants
Mechanisms of Nucleolar Dominance in Animals and Plants

MEDICAL BIOLOGY AND GENERAL GENETICS
MEDICAL BIOLOGY AND GENERAL GENETICS

... – structural (membranes are components of all cell organelles except ribosomes and centrosomes); – barrier (protects the cell from external factors and sustains its composition); – metabolic (many enzymes are located on membranes); receptor (receives signals, recognizes substances). 4 Methods of pas ...
Chromosomal theory of inheritance
Chromosomal theory of inheritance

... • H0: based on Mendel’s first law of equal segregation the observed progeny fits a 1:1 ratio of girls : boys. • Chi-square = 2.76, df= 1, p>0.05, rejection level is p=0.05 • Therefore we conclude that for Χ2 =2.76, df=1 we would expect a deviation from the 1:1 ratio at least this large would occur b ...
HSAN1 - Deater Foundation, Inc.
HSAN1 - Deater Foundation, Inc.

... Sensory neurons carry information about the environment, such as pressure, touch, temperature, and pain to the spinal cord. From there, signals get carried to the brain to tell the body what sensation is being detected. ...
Genetics - Mendelian Inheritance & Heredity Lecture PowerPoint
Genetics - Mendelian Inheritance & Heredity Lecture PowerPoint

... contrasting traits, only one form of the trait will appear in the next generation. - Offspring that are hybrid for a trait will have only the dominant trait in the phenotype. ...
Why Mitochondrial Genes are Most Often Found in Nuclei
Why Mitochondrial Genes are Most Often Found in Nuclei

... normally reside in the host nucleus (Gray 1992). Some of these have originated from the proteobacterial ancestor, but a significant fraction have arisen within the eukaryotic genome (Andersson and Kurland 1999; unpublished data). In the yeast Saccharomyces cerevisiae, in which the nucleus encodes mo ...
Year 13 Biology - miss-lovell-presents
Year 13 Biology - miss-lovell-presents

... 12. Albinism is a disease which has a pleiotropic effect. What is meant by this term? 13. Certain genes have the ability to suppress the expression of a gene at a second locus. In pumpkin, colour is recessive to no colour at one allelic pair. This recessive allele must be expressed before the specif ...
Molecular Aspects of Hereditary Sensory
Molecular Aspects of Hereditary Sensory

... Sensory neurons carry information about the environment, such as pressure, touch, temperature, and pain to the spinal cord. From there, signals get carried to the brain to tell the body what sensation is being detected. ...
VvmybA1 genotype determines grape skin color - Vitis-vea
VvmybA1 genotype determines grape skin color - Vitis-vea

... et al. 2004). These findings suggest that VvmybA1 is a major gene determining the coloring of grape skin. However, it is not clear whether VvmybA1 is the sole determinant, as other genes related to anthocyanin biosynthesis might be involved. To examine whether the coloring of grape skin is determine ...
Variation in Chromosome Number
Variation in Chromosome Number

... – Occur in nature in very low frequency – In many species like corn, wheat, sorghum, barley, rye rice, flax, tobacco, cotton etc. – Can be differentiated from normal diploids (due to smaller size) – Haploidy can be efficiently confirmed by flow cytometery – Haploidy can be less efficiently confirmed ...
transcription factor
transcription factor

... lacZ Operator RNA polymerase less likely to bind ...
AP & Regents Biology
AP & Regents Biology

...  Occurs when eukaryotes have more than 2n chromosomes Major method of speciation in plants  As the number of chromosomes increase so does the possible cell size ex: huge strawberries! Often lethal in animals ...
Unit H: Heredity and Reproduction
Unit H: Heredity and Reproduction

Chapter 9
Chapter 9

... (separate) during gamete production. • This segregation of alleles corresponds to the distribution of homologous chromosomes to different gametes in meiosis. – If an organism has identical allele for a particular character, then that allele exists as a single copy in all gametes. – If different alle ...
Reconstruction of a Functional Human Gene Network, with an
Reconstruction of a Functional Human Gene Network, with an

... the data sources from which the true positives were derived and their degree of overlap. Numbers in parentheses indicate the number of interactions that are provided by each of the data sets. b, Potential gene-gene interactions derived from GO, microarray coexpression data, and human and orthologous ...
GIN Transposons: Genetic Elements Linking Retrotransposons and
GIN Transposons: Genetic Elements Linking Retrotransposons and

... with the genome of the hosts in which they thrive (see, e.g., the recent reviews by Feschotte 2008; Venner et al. 2009). Particularly, it has been extensively documented that new, often essential, genes of the hosts derive from different classes of mobile sequences (reviewed by Volff 2006; Dooner an ...
Human Genetics and Linked Genes
Human Genetics and Linked Genes

...  Occurs when eukaryotes have more than 2n chromosomes Major method of speciation in plants  As the number of chromosomes increase so does the possible cell size ex: huge strawberries! Often lethal in animals ...
Meiosis and Variation
Meiosis and Variation

... A. The Chromosomal Theory – Sutton and Boveri B. Solving Darwin’s Dilemma – The Source of Variation Independent Assortment produces an amazing amount of genetic variation. And each can fertilize ONE of the ~ 8 million types of gametes of the mate… for a total 246 = 70 trillion different chromosomal ...
Crossing Over
Crossing Over

... When Does it Happen? During Prophase I of Meiosis Remember the differences between Mitosis and Meiosis? ...
Leukaemia Section +9 or trisomy 9 Atlas of Genetics and Cytogenetics
Leukaemia Section +9 or trisomy 9 Atlas of Genetics and Cytogenetics

... Schoch C. Additional clonal abnormalities in Philadelphiapositive ALL and CML demonstrate a different cytogenetic pattern at diagnosis and follow different pathways at progression. Cancer Genet Cytogenet 2005;157:53-61. ...
Common DNA sequences with potential for detection of genetically
Common DNA sequences with potential for detection of genetically

... systems may be eliminated from genetically modified plants prior to their application in the field. Herbicide resistance markers (Table 1) are less likely than antibiotic markers to be removed from plant cells prior to release into the field since they can be exploited by the plant grower. The need ...
MEIOSIS - Oakland-Craig Public School
MEIOSIS - Oakland-Craig Public School

... cause polyploidy to improve their produce a. Bananas (3n), Wheat (6n) ...
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Minimal genome

The concept of minimal genome assumes that genomes can be reduced to a bare minimum, given that they contain many non-essential genes of limited or situational importance to the organism. Therefore, if a collection of all the essential genes were put together, a minimum genome could be created artificially in a stable environment. By adding more genes, the creation of an organism of desired properties is possible. The concept of minimal genome arose from the observations that many genes do not appear to be necessary for survival. In order to create a new organism a scientist must determine the minimal set of genes required for metabolism and replication. This can be achieved by experimental and computational analysis of the biochemical pathways needed to carry out basic metabolism and reproduction. A good model for a minimal genome is Mycoplasma genitalium, the organism with the smallest known genome. Most genes that are used by this organism are usually considered essential for survival; based on this concept a minimal set of 256 genes has been proposed.
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