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vekshin1
2 years ago
15

Where are pesticides found in the environment?

Biology
1 answer:
Lera25 [3.4K]2 years ago
7 0
It is d because pesticides run off into water, they are absorbed into soil , and they are left in the air , hope this helps :)
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What is the impact of a nonsence mutation?
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What does the cell nucleus contain?
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Glucose-6-phosphate dehydrogenase deficiency (G6PD) is inherited as an X-linked recessive allele in humans. A woman whose father
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Answer:

(a) 1/2; (b) no

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Glucose-6-phosphate dehydrogenase deficiency (G6PD) is an X-linked recessive disorder and the woman's father was diseased so it means that woman is a carrier of the allele but has normal phenotype. It means that she will have XXᵇ genotype.

In contrast to this, her husband is diseased so his genotype will be XᵇY.

The Punnett square diagram related to the cross is attached.

(a) Proportion of their sons expected to be G6PD is 1/2:

They both may give birth to 4 progeny with genotypes XXᵇ, XᵇXᵇ, XY and XᵇY. It means they both may have 2 sons out of which one with genotype XᵇY will be diseased while the one with genotype XY will be healthy. So the proportion of their sons having G6PD is 1/2 or 50%.

(b) If the husband were G6PD deficient, the answer will not change.

The reason behind this is that this disease is caused by an allele located in X chromosome. But father contributes only Y chromosome to his son not X chromosome. The X chromosome will affect the genotype of his daughter not son that is why answer will not change. It means they will still have 1/2 of their sons diseased.  

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3 years ago
As part of a science experiment, Jose did a test for starch on a slice of apple and a slice of potato. The yellow-orange iodine
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If iodine solution reacts with starch, it will change color into black.
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6 0
3 years ago
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