Which theory of heredity suggested that a child is a blend of its parents, like paint -- if one parent is red and the other parent is blue, then the child is purple? Question 14 options: Mendelian inheritance natural selection inheritance of acquired characteristics blending inheritance
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Step 1: Identify the concept being described in the question, which involves the idea that offspring are a mixture of their parents' traits. Show more…
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What is the blending theory of inheritance? A) Mendel's theory of how the traits of parents are passed to offspring through the gametes. B) An old theory that said that offspring show traits intermediate between those of parents. C) The modern theory of how genetic information is passed from parents to offspring. D) Darwin's theory of how traits are passed from all parts of the parent's body into the gamete to be transmitted to the offspring.
Marlyn J.
Sri K.
The blending-inheritance hypothesis proposed that the genetic material from parents is mixed in the offspring. As a result, traits of offspring and later descendants should lie between the phenotypes of parents. Mendel, in contrast, proposed that genes are discrete and that their integrity is maintained in the offspring and in subsequent generations. Suppose the year is $1890 .$ You are a horse breeder and have just read Mendel's paper. You don't believe his results, however, because you often work with cremello (very light-colored) and chestnut (reddish-brown) horscs. You know that when you breed a cremcllo individual from a pure-breeding line with a chestnut individual from a pure-breeding line, the offspring are palomino-meaning they have an intermediate (golden-yellow) body color. What additional cross would you do to test whether Mendel's model is valid in the case of genes for horse color? According to his model, what offspring phenotype frequencies would you get from your experimental cross? Explain why your cross would provide a test of Mendel's model versus blending inheritance.
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