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oksian1 [2.3K]
2 years ago
9

Most scientists use scientific methods in which of the following orders?

Biology
2 answers:
Over [174]2 years ago
8 0
The answer to this question is C
GalinKa [24]2 years ago
3 0
The answer to this solution c
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In the snapdragon example, what third phenotype is expressed from the heterozygous genotype?
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Pink flowers, a blending of red and white

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In what stage of the cell cycle do chromosomes line up in the middle of the cell
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The correct answer is metaphase.

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During metaphase, the lining up of the chromosomes takes place at the metaphase plate, under the influence of the mitotic spindle. In each of the chromosomes, the sister chromatids are held together with the help of microtubules from the contrary spindle poles.  

In metaphase, the spindle has captivated all the chromosomes and aligned them in the center of the cell, which is ready to differentiate.  

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The correct answer would be Y-chromosome analysis.

Y-chromosome analysis is technique used to search the parental line of a boy on his father's side.

Gender of a person is determined by 23^{rd} chromosome in humans. XX is present in females and XY is present in males.

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The sons (F₂) of this son (F₁) will also bear the same Y chromosome as that of grand father (P).

Thus, Y chromosome always passes from father to son and hence, Y-chromosome analysis can help in identification of father of this young boy.

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Answer: Well females can potentially switch between sexual and asexual reproduction, but males cannot clone themselves, while parthenogenesis make it possible for females to reproduce without males.

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