What Phenotypes Are Associated With Down Syndrome? This region was associated with several of the major DS phenotypes, including protruding tongue and flat facies (largely a function of hypoplastic mandible and craniofacial skeleton, respectively), short stature, mental retardation, joint hyperlaxity Does Down syndrome affect a person’s phenotype? Down syndrome is characterized by extensive phenotypic variability;
What Is The Term Used To Describe The One Trait That Is Expressed? Different versions of a gene are called alleles. Alleles are described as either dominant or recessive depending on their associated traits. … The resulting characteristic is due to both alleles being expressed equally. What is the term applied to studying the effects
How Do You Name A Genotype? genotype = the genes of an organism; for one specific trait we use two letters to represent the genotype. A capital letter represents the dominant form of a gene (allele), and a lowercase letter is the abbreviation for the recessive form of the gene (allele). What is an example
How Does Natural Selection Happen? Natural selection occurs when individuals with certain genotypes are more likely than individuals with other genotypes to survive and reproduce, and thus to pass on their alleles to the next generation. … There is variation among individuals within a population in some trait. How did natural selection happen? Natural selection
How Does The Environment Interact And Affect The Genotypes? Sometimes, sensitivity to environmental risk factors for a disease are inherited rather than the disease itself being inherited. Individuals with different genotypes are affected differently by exposure to the same environmental factors, and thus gene–environment interactions can result in different disease phenotypes. How does environment affect
How Does The Environment Interact With Genotypes? Sometimes, sensitivity to environmental risk factors for a disease are inherited rather than the disease itself being inherited. Individuals with different genotypes are affected differently by exposure to the same environmental factors, and thus gene–environment interactions can result in different disease phenotypes. What are some examples of genotype
How Does The Environment Affect Genotype? Genotype generally remains constant from one environment to another, although occasional spontaneous mutations may occur which cause it to change. However, when the same genotype is subjected to different environments, it can produce a wide range of phenotypes. How does the environment interact with genotypes? Sometimes, sensitivity to environmental
Which Of The Following Favors One Phenotypic Extreme Over Another Causing A Shift In The Phenotypic Mean? Directional selection. The type of selection that favors phenotypes at one extreme of a trait’s range; causes a shift in a population’s phenotypic distribution; an extreme phenotype that was once rare in a population becomes more common; mean
Which Allele Will Be Expressed When Both A Dominant And Recessive Allele Are Present In An Organism? A dominant phenotype will be expressed when at least one allele of its associated type is present, whereas a recessive phenotype will only be expressed when both alleles are of its associated type. However, there are exceptions to
What Is Genotype In Science? In a broad sense, the term “genotype” refers to the genetic makeup of an organism; in other words, it describes an organism’s complete set of genes. … A particular genotype is described as homozygous if it features two identical alleles and as heterozygous if the two alleles differ. What is