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Leona [35]
2 years ago
12

As you finish your college degree, you learn that the mountain behind your childhood home in the hills of the town you grew up a

re slated to be mined for coal using the mountain top removal method. Your parents, who still leave there are worried for their health and safety and do not want to lose the beautiful forested creek and ravine behind their property. However your brother is out of work and could use the mining job. What would you attempt in this situation?
Biology
1 answer:
telo118 [61]2 years ago
6 0

In this situation, I would try not to allow the exploitation of the mountain to occur, degrading nature and the property that her family has, because her brother may look for another job, but nature would not recover.

<h3>What are the impacts of coal mining?</h3>

The burning of coal for energy produces highly toxic effluents, such as mercury and other heavy metals such as vanadium, cadmium, arsenic and lead. In addition, the release of carbon dioxide causes pollution in the atmosphere, exacerbating global warming and contributing to acid rain.

With this information, we can conclude that Sedimentation and pollution of rivers due to improper disposal of unused material would make life on the family's property unfeasible.

Learn more about coal mining in brainly.com/question/12880911

#SPJ1

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Colorblindness is an X-linked recessive trait. Samantha is colorblind and her husband, Rick, has normal vision. What is the prob
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Considering the whole progeny, there are 50% of probabilities of having a colorblind son. Considering only boys, there are 100% chances of having a colorblind son.

<h3>What is color blindness?</h3>

Color-blindness is a disfunction characterized by an alteration in color perception.

This alteration might affect perception from only partial confusion and difficulties in distinguishing some tones of green and red, up to no chromatic distinction.

Color-blindness is an X-linked condition.

  • Women that are h0m0zyg0us recessive will be completely color-blinded (X⁺X⁺),

  • Heter0zyg0us woman has partial color-blindness (X⁺X⁻).

  • Men are or are not color-blinded (X⁺Y or X⁻Y).

<h3>Available data</h3>
  • color-blindness is an X-linked recessive condition
  • X⁻ represents the X chromosome carrying the color blindness allele.
  • The allele for color blindness is recessive to the normal form of the gene, X ⁺.
  • Samantha is colorblind.
  • Rick has normal vision.

⇒ If Samantha is color-blind, then her genotype is X⁻X⁻.

⇒ If Rick has normal vision, then his genotype is X⁺Y.

Cross: Samantha and Rick

Parentals)    X⁻X⁻     x      X⁺Y

Gametes)  X⁻    X⁻         X⁺    Y

Punnett square)           X⁻               X⁻

                         X⁺       X⁺X⁻           X⁺X⁻

                          Y        X⁻Y             X⁻Y

F1) 2/4 = 1/2 = 50% of the progeny is expected to be heter0zyg0us expressing partial-color blindness, X⁺X⁻.

     2/4 = 1/2 = 50% of the progeny is expected to be completely color-blinded, X⁺Y.

     100% of the girls are expected to be partial-color blinded, X⁺X⁻.

     100% of the boys are expected to be color blinded, X⁻Y.

Answer: You can express your answer in two ways,

  • 4/4 = 100% of probabilities of having a colorblind son (you are only considering boys in your answer).

             

  • 1/2 = 50% of chances of having a colorblind son among the whole progeny (this answer includes girls as well).

You ca learn more about color-blindness at

brainly.com/question/25621649

brainly.com/question/4299904

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