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Delicious77 [7]
3 years ago
9

Explain the process of evolution by natural selection.

Biology
1 answer:
marishachu [46]3 years ago
8 0

Answer:

Natural selection is a process where organisms that are better adapted to an environment will survive and reproduce. This means that the advantageous alleles of this variant organism are passed on to offspring. Over many generations, the process of natural selection leads to evolution occurring.

Explanation:

this should give you your answer but if not please tell me

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g Which of the following statements is NOT true? A. Each variable site of a gene tree can be treated as an independent character
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Answer:

C. Gene trees are only useful studying the relationships of sequences from different species.

Explanation:

Gene tree traces the evolutionary history of a particular gene. It includes all the events like duplication and speciation. It helps to study the relationship of genes from different species. Often these are orthologous genes which came form the same ancestor and code for the same protein indifferent species. Gene tree also helps to study the relationship of genes in the same species. Often these are paralogous genes which evolved by duplication and code for similar but not identical proteins in the same species. Hence, the statement that gene trees are only useful for studying the relationships of sequences from different species is incorrect.

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Nearly ____ % of people with type 2 diabetes are overweight when diagnosed.
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Some sweet-pea plants have purple flowers and other plants have white flowers. A homozygous variety of pea that has purple flowe
Pachacha [2.7K]

Answer:

Some sweet-pea plants have purple flowers and other plants have white flowers. A homozygous variety of pea that has purple flowers is crossed with a homozygous variety that has white flowers. All the F1 have purple flowers. When these F1 are self-fertilized, the F2 appear in a ratio of 9/16 purple to 7/16 white. Show your work.

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PP x ww= Pw, Pw, Pw, Pw F1 generation

Pw x Pw= PP. Pw, Pw and ww F2 generation

3 purple and 1 white flower

B) Draw a hypothetical biochemical pathway to explain the production of purple and white flowers in  sweet peas.

Explanation:

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