GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the manifested structure, function, and behaviors of an individual the expression of the genotype of an organism
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a phenomenon in which an individual gene influences multiple traits
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describes an allele whose phenotypic effect is masked by a dominant allele
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None of the above
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Detailed explanation-1: -Phenotype refers to an individual’s observable traits, such as height, eye color and blood type. A person’s phenotype is determined by both their genomic makeup (genotype) and environmental factors.
Detailed explanation-2: -(FEE-noh-tipe) The observable characteristics in an individual resulting from the expression of genes; the clinical presentation of an individual with a particular genotype.
Detailed explanation-3: -The term “phenotype” refers to the observable physical properties of an organism; these include the organism’s appearance, development, and behavior. An organism’s phenotype is determined by its genotype, which is the set of genes the organism carries, as well as by environmental influences upon these genes.
Detailed explanation-4: -The classic definition of a phenotype is the physical manifestation of genotype. However, with the increase knowledge of epigenetic, environmental and molecular alterations, the word phenotype has evolved and gained multiple definitions.
Detailed explanation-5: -PHENOTYPE AND GENOTYPE. Definitions: phenotype is the constellation of observable traits; genotype is the genetic endowment of the individual. Phenotype = genotype + development (in a given environment). To consider these in the context of evolutionary biology, we want to know how these two are related.