Health Sciences 2700A/B Chapter Notes - Chapter 2: Phenotype, Zygosity, Chromosome
9 Apr 2020
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Our body cells" nuclei contain 23 pairs of chromosomes that are made up of dna amino acids to build proteins that our bodies need to function properly. An essential function of genes is to instruct body cells to combine 20 standard. Each chromosome contains genes that influence a particular trait or developmental. Genome: all the dna an organism possesses. Homozygous: chromosomes that carry either two dominant genes or two recessive genes. Heterozygous: chromosomes that carry one dominant and one recessive gene. The simplest genetic rule is the dominant- Phenotype: an individual"s whole set of observable characteristics recessive pattern. If a child receives a single dominant gene for a trait from one parent, the child"s phenotype will include the trait determined by that gene. A child"s phenotype will include a recessive trait only if she inherits a recessive gene from both parents. Human geneticists have learned that both dominant and.
