lamc cd 1 week 4 genes & human reproduction. dna- el ácidodesoxirribonucleico (adn)- la...
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LAMC CD 1 Week 4
Genes & Human Reproduction
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• DNA- El ácidodesoxirribonucleico (ADN)- la molécula que es la base de la herencia.
Gene- is a section of the DNA. Gen una sucesión de lasbases de nucleótido que proporciona lasinstrucciones genéticas para una proteínaespecífica.
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• For each pair of chromosomes, the genes for a trait (i.e. - eye color or nose shape) are in the same locations, and called alleles.
• Alelo- La variación de un gen que determina diferente caracteristicas de la herencia
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• Genotype-
• Genotipo- Se refiere a la dotación genética de un individuo.
(tejido de músculo, esqueleto, etc., que son responsible por las habilidades mentales)
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• Phenotype- is the outward expression of the genotype-environment interactions; includes behaviors; the characteristic of a trait that is observable in a person;
• Fenotipo- representa las características físicas, las del comportamiento, y las características psicologicas de la persona; es la expresión exterior del genotipo.
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• Dominant gene- A powerful allele whose characteristics are expressed in the phenotype regardless of the allele with which it is paired.
• Gene dominante- El alelo dominante significa que sus instrucciones químicas se siguen.
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• Recessive gene- A weak allele whose characteristics are expressed in the phenotype only when it is paired w/ another recessive gene.
• Gen recesivo- En un par de alelos, el miembro subordinado que no afecta al fenotipo.
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Polygenic inheritance/ Herencia poligénica
• Cuando hay interacciones de mas de un par de genes que resultan en un fenotipo.
(altura, peso, color de la piel, temperamento, inteligencia)
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• Epigenesis- development results from the bidirectional interactions between genotype & environment (environmental influences on development)
• Resultados Epigénesis - desarrollo de las interacciones bidireccionales entre el genotipo y el ambiente
(siendo susceptible a la enfermedad)
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• Mitosis- involves autosomes…
• Meiosis- the process of cell division that results in the production of gametes.
• Gametes…
• Gonads…
Conception & Fertility/Infertility
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• Ovulation- release of an egg (ovum) from the ovary…
Show video clip
• ConceptionShow video clip
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Behavior Genetic Theory
• Environmental & genetic factors that account for individual in personality & behavior.
• Shared vs. non-shared environments
• Heritability- value ranges from 0 to 1.00; the higher the heritability, the more the characteristic is believed to be influenced by genes
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Identical twins / Gemelos Idénticos
(Monozygotic)
• La concepción se produce con…
• Pueden desarrollar su propia…
Fraternal TwinsGemelos Fraternales
(Dizygotic)
• La concepción se produce con…
• Siempre desarrollar individuo…
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Gene environment interactions
• The environment influences how genes are expressed in the phenotype
• Epigenesis: development results from the bidirectional interactions between the environment & genotype (DNA)