GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The recessive trait will always show up.
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Traits are determined by gene pairs.
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Traits are passed from parents to offspring.
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Genes are usually dominant or recessive.
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Detailed explanation-1: -The three principles of heredity are dominance, segregation, and independent assortment. The law of dominance describes how different alleles interact with one another and which goes on to be displayed in the offspring.
Detailed explanation-2: -The Mendel’s four postulates and laws of inheritance are: (1) Principles of Paired Factors (2) Principle of Dominance(3) Law of Segregation or Law of Purity of Gametes (Mendel’s First Law of Inheritance) and (4) Law of Independent Assortment (Mendel’s Second Law of Inheritance).
Detailed explanation-3: -recessiveness, in genetics, the failure of one of a pair of genes (alleles) present in an individual to express itself in an observable manner because of the greater influence, or dominance, of its opposite-acting partner.
Detailed explanation-4: -Mendel’s law of dominance states that in a heterozygote, one trait will conceal the presence of another trait for the same characteristic. Rather than both alleles contributing to a phenotype, the dominant allele will be expressed exclusively.