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asexual reproduction
asexual reproduction

... Part II Chromosome Number  Organisms can be organized by how they ...
Plants in Action
Plants in Action

... because normal organs may develop in abnormal positions. The simplest transformations are (1) sepals to carpels and petals to stamens, (2) petals to sepals and stamens to carpels, and (3) stamens to petals and carpels to sepals (see summary in Meyerowitz 1994). On this basis, it appears that wild-ty ...
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... reduction..clonally… and these are the rare animals that we see – triploid ‘species’ that are composed of females that reproduce asexually. (Some may still mate with their diploid ‘sibling’ species so that the sperm stimulated the egg to develop – but without incorporation of sperm DNA.) Like this B ...
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Genome-Wide Prediction of Functional Gene
Genome-Wide Prediction of Functional Gene

... Gene-gene interactions in phase II detoxification determine alcohol preference in mice Given our interpretation that pairs of unlinked polymorphisms in strong LD represent functional interactions, we aimed to establish the extent to which the interaction between genes rather than their individual ef ...
4. Pedigree Analysis
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Genetics
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... Mendel observed these same patterns of inheritance for six other pea plant characteristics. From these results, he developed four hypotheses, which we will describe using modern terminology (such as “gene” instead of “heritable factor”): ...
An Introduction to Genetic Analysis Chapter21 Extranuclear Genes
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The Time of Your Life
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... Advantage – genetic variation in offspring a. Some may have traits that favor survival b. Can pass these traits on to offspring c. Darwin’s theory - “ survival of the fittest” d. Variation in individuals allows a species to evolve ...
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... fold higher than that of wild-type strain. The sanJ gene was inactivated by the insertion of kanamycin resistance gene and the resulting disruption mutants failed to produce nikkomycins. Moreover, the nikkomycin production was recovered by cis-complementation with a single copy of sanJ. The result i ...
Advanced Higher Biology Unit 2 * Organisms and Evolution 2bii
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... Each cell normally holds a double set of chromosomes; one is inherited from the mother and one from the father. One set of chromosomes from each parent combines when the sperm fertilises the egg (in the case of animals) or pollen fertilises the ovum (in the case of plants). The cell formed after fer ...
Mendelian Genetics Lecture
Mendelian Genetics Lecture

... type called AB. ...
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Arabidopsis Gene Project Slides

... You are working on an Arabidopsis gene discovery project, and your job is to sequence cDNAs and then learn all you can about the genes from all types of databases: DNA sequence, genome, and publication databases. Query sequence: TCCTGCATTCAATGTGATCAATGGAGGCAGTCATGCTGGGAATAGTTT GGCTATGCAAGAGTTTATGATA ...
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Epigenetics of human development

Development before birth, including gametogenesis, embryogenesis, and fetal development, is the process of body development from the gametes are formed to eventually combine into a zygote to when the fully developed organism exits the uterus. Epigenetic processes are vital to fetal development due to the need to differentiate from a single cell to a variety of cell types that are arranged in such a way to produce cohesive tissues, organs, and systems.Epigenetic modifications such as methylation of CpGs (a dinucleotide composed of a 2'-deoxycytosine and a 2' deoxyguanosine) and histone tail modifications allow activation or repression of certain genes within a cell, in order to create cell memory either in favor of using a gene or not using a gene. These modifications can either originate from the parental DNA, or can be added to the gene by various proteins and can contribute to differentiation. Processes that alter the epigenetic profile of a gene include production of activating or repressing protein complexes, usage of non-coding RNAs to guide proteins capable of modification, and the proliferation of a signal by having protein complexes attract either another protein complex or more DNA in order to modify other locations in the gene.
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