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I would make the graph narrower.

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Which genetic concepts best explain the fact that hybrid parents can produce offspring with recessive phenotypes?

The concept of recessive alleles and the principle of segregation during gamete formation can explain how hybrid parents carrying a recessive allele can produce offspring with recessive phenotypes. When the alleles for a specific trait segregate during gamete formation, a recessive allele from each parent can combine in the offspring, resulting in the expression of the recessive phenotype.


What is the Meaning of natrul selection?

It is the most consistent, and perhaps the best, theory put forward to explain the fact of evolution.


How did the identification of genes help explain evolution?

The discovery of the structure of the genome and the genetic mechanism helped explain what the mechanism was that drives evolution: it helped explain how changes in the genome lead to the different phenotypes upon which natural selection acts. Also, the ability to sequence parts of a genome yielded yet another confirmation of the central thesis of common descent, by showing that at the genetic level all life conforms to the same set of nested hierarchies that was already apparent in its morphology and behaviour. Thirdly, the ability to compare genes and genomes allowed biologists to establish much more accurately the evolutionary relationships between species.


How do you describe a pattern of inheritance that the blending hypothesis fails to explain?

A pattern of inheritance that the blending hypothesis fails to explain is incomplete dominance, where the heterozygous phenotype is intermediate between the two homozygous phenotypes. This contradicts the blending hypothesis, which suggests that the traits of the parents are mixed together in the offspring. In incomplete dominance, the traits remain distinct in the offspring.


Why was Darwin's theory of evolution better than other theories of evolution?

Darwin's theory of evolution by natural selection was better than other theories of his time because it provided a mechanism (natural selection) to explain how evolution occurs. It was supported by evidence from various scientific disciplines such as geology, paleontology, and morphology. Additionally, Darwin's theory was able to explain the diversity of life on Earth in a simple and elegant way.