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Child Development 1 Wk. 2 (2/28/14)

Child Development 1 Wk. 2 (2/28/14). Genes. Ch 2. DNA- stairlike , double helix molecule. El ácidodesoxirribonucleico (ADN)- la molécula que es la base de la herencia . Gene- is a section (or segment) of the DNA, along the length of a chromosome. Gen una sucesión de las bases de

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Child Development 1 Wk. 2 (2/28/14)

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  1. Child Development 1 Wk. 2 (2/28/14) Genes

  2. Ch 2 • DNA- stairlike, double helix molecule. El ácidodesoxirribonucleico (ADN)- la moléculaquees la base de la herencia. • Gene- is a section (or segment) of the DNA, along the length of a chromosome. Gen unasucesión de las bases de nucleótidoqueproporcionalas instruccionesgenéticasparaunaproteína específica.

  3. Autosomes; • 23rd pair; • Cada ser humanotiene 46 cromosomas: 22 pares de cromosomasque se llaman “Autosomes” y el par # 23 son lascromosomas del sexo

  4. Sex (X) linked inheritance: • Hemophilia • Fragile X- syndrome

  5. For each pair of chromosomes, the genes for a trait (i.e. - Alleles. • Alelo- La variación de un gen quedeterminadiferentecaracteristicas de la herencia

  6. Genotype- the raw genetic code; which is made up of large molecules of (DNA)… • Genotipo- Se refiere a la dotacióngenética de un individuo.

  7. Phenotype- is the outward expression of the genotype-environment interactions; • Fenotipo- representalascaracterísticasfísicas,

  8. Dominant gene- A powerful allele whose characteristics are expressed in the phenotype • Gene dominante- El alelodominantesignificaquesusinstruccionesquímicas se siguen.

  9. Recessive gene- A weak allele whose characteristics are expressed in the phenotype • Gen recesivo- En un par de alelos, el miembrosubordinadoque no afecta al fenotipo.

  10. Polygenic inheritance/Herenciapoligénica • The case in which a trait is determined by more than one gene (many different). • Cuando hay interacciones de mas de un par de genes queresultan en un fenotipo.

  11. 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)

  12. Fraternal Twins GemelosFraternales Identical twins / GemelosIdénticos Conception occurs with... La concepción se produce con… Identical twins can develop their own… Puedendesarrollarsupropia… • Conception occurs with... • La concepción se produce con… • Always develop individual... • Siempredesarrollarindividuo…

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