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 phenotype determines the genotype.
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The genotype determines the phenotype.
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There is no relationship between phenotype and genotype.
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None of the above
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Detailed explanation-1: -Genotype and phenotype are two different concepts but are closely related to each other. Phenotype refers to the physical traits that are observed in an organism which are the outcome of the expression of the genes of an individual. The genotype determines the phenotype of an individual.
Detailed explanation-2: -A person’s genotype is their unique sequence of DNA. More specifically, this term is used to refer to the two alleles a person has inherited for a particular gene. Phenotype is the detectable expression of this genotype – a patient’s clinical presentation.
Detailed explanation-3: -One can determine the genotype by the biological tests. On the other hand, the phenotype is determined by an individual’s genotype and can be expressed as genes or by the visible traits. Such traits are hair color or type, eye color body shape, and height, and many such more.
Detailed explanation-4: -The traditional genotype-to-phenotype theory embraces the view that the encoded protein shape together with gene expression level largely determines the resulting phenotypic trait.
Detailed explanation-5: -Specifically, to detect the underlying genotype of an organism with a dominant phenotype, one must do a type of breeding analysis called a test cross. The test cross is another fundamental tool devised by Gregor Mendel.