which of the following explains how progeny can possess the combinations of traits that none of the parent possessed?
Answers
Answer:A polygenic is defined as a gene where a dominant allele controls only a unit or partial quantitative expression of a trait. In polygenic inheritance, across between two pure-breeding parents does not produce dominant trait of one parent but instead, an intermediate trait is exhibited. The Law of segregation is the first law of Mendelism. According to it, the two factors of a character which remain together in an individual do not get mixed up but keep their identity distinct, separate at the time of gametogenesis or sporogenesis, get randomly distributed to different gametes and then get paired again in different offspring as per the principle of probability. Chromosomal theory of inheritance believes that chromosomes are vehicles of hereditary information, possess Mendelism factors or genes, segregate and assort independently during transmission from one generation to the next. chromosome theory was proposed by Sutton and Boveri independently in 1902. Law of independent assortment is second law of Mendelism. According to it, the two factors of each character assort or separate independently of the factors of other characters at the time of gamete formation and set randomly re-arranged in the offspring.
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