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    Boom and Bust 1920-1941

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    representing an inactivated X chromosome. 3.chromosome theory of inheritance: generalization that genes are located on chromosomes and that the behavior of chromosomes during meiosis and fertilization accounts for inheritance patterns 4.crossing over: process in which homologous chromosomes exchange portions of their chromatids during meiosis 5.cytogenetic maps: a chart of a chromosome that locates genes with respect to chromosomal features distinguishable in a microscope 6.deletion: change to a chromosome

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    Background DNA is an abbreviation for deoxyribonucleic acid‚ but it is usually known by its initials alone. DNA is found in practically all living organisms‚ and it is now known to carry genetic information from one cell to the next‚ and from one generation to the next. The units of inheritance‚ called genes‚ are actually sections of the DNA molecule.  Nuclei of the cells of higher organisms contain thread-like bodies called chromosomes‚ which consist of DNA‚ wrapped around proteins. So understanding how

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    FEEDBACK COMPARISON REQUESTS WORDPRESS PLUGIN LOG IN Diffen Compare Anything ›› vs. Aerobic vs Anaerobic Respiration Aerobic RespirationAnaerobic Respiration Diffen › Science › Biology Cellular respiration is the set of the metabolic reactions and processes that take place in organisms’ cells to convert biochemical energy from nutrients into adenosine triphosphate (ATP)‚ and then release waste products. It is one of the key ways a cell gains useful energy. Comparison chart Embed this

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    QUESTIONS AND ANSWERS SECTION A: SIMILARITIES‚ DIFFERENCES‚ AND DEFINITIONS Gametes are mature haploid reproductive cells that unite to form a zygote that develops into a new individual. Gametes are also called sex cells. An egg or ovum is a haploid female reproductive cell or gamete whereas a sperm is a male haploid reproductive cell. A zygote is the initial cell that is formed as a result of the union of a male and a female gamete by means of sexual reproduction. The two haploid cells merge

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    Biology Chromosome

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    has non-disjunction and therefore two X chromosomes in it after going through the entire process of meiosis. If that egg is then fertilized by a sperm with an X chromosome from the father this would result in the XXX Triple-X syndrome. c. This syndrome can only be held “responsible” to both the parents chromosome contributions. The mother could achieve nondisjunction anywhere throughout meiosis to achieve the double XX chromosome in one of the final egg gametes. The father if had nondisjunction

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    is RNA? How are the 3 types different in function? 17. How are triplet codes‚ codons‚ and amino acids related? 18. What is the purpose of mitosis? 19. Briefly describe what happens in each phase of mitosis? 20. What is the purpose of meiosis? 21. Explain the relationship between gametes‚ zygote‚ blastocyst‚ embryo and fetus. 1. Connective Tissue gives shape to organs and holds them in place. Blood and bones would be examples. Muscle cells form active contractile

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    Bio 1201 Notes

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    * Meiosis – cell division for gamete production * In specialized tissues * Produces cells with the 1n chromosome number * Two Divisions * Meiosis I separates homologous chromosomes * Meiosis II separates sister chromisis * Asexual Reproduction * Mitotic division * Identical offspring * Sexual Reproduction * Fuse gametes from parents (syngamy) to produce a zygote * Each parent contributes half the genetic material * Increase the diversity of

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    Plant Kingdom (Biology) | Close | | Study Material | | Division Algae Classification within Angiosperms * Artificial system of classification * Given by Linnaeus * Based on vegetative characters and androecium structures * Gave equal importance to vegetative and sexual characteristics * Natural system of classification * Based on morphology‚ anatomy‚ embryology‚ and phytochemistry * Given by George Bentham and Joseph Dalton Hooker * Phylogenetic

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    CHAPTER 29 Multiple Choice ALPHEBETIZED ________ is the most common type of fetal testing. Amniocentesis A chromosomal aberration in which part of a chromosome is lost is known as ________. deletion A female infant is born with several hundred oocytes‚ each one genetically unique. This is due to ________. independent assortment and random crossover An allele that can be masked or suppressed by another allele is said to be __________.Recessive A couple whose blood types are A (IAi) and B

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    AP Biology Mid-Term Study Guide 2015 Monitha Patel Chemical Bonding Compounds Sharing of a pair of valence electrons by two or more different atoms Molecule Two or more atoms held together by covalent bonds Ionic Electron attraction between two atoms Cations (+1) and Anions (-1) attract Covalent Sharing of valance electrons between atoms Nonpolar Electrons are shared equally O2 Polar Covalent Unequal sharing of electrons between atoms Two hydrogen atoms are bonded to a single oxygen

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