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vampirchik [111]
3 years ago
5

1. Why are these moths called "peppered moths?"

Biology
1 answer:
riadik2000 [5.3K]3 years ago
8 0

Answer:

they got black dot on their white wings.

Explanation:

And black pepper moths dont but they are natural selected from the white pepper moths.

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Imagine a genetic counselor working with a couple who have just had a child who is suffering from Tay-Sachs disease. Neither par
Alexxx [7]

Answer:

C. "Because you have had one child with Tay-Sachs, you must each carry the allele. Any child you have has a 25% chance of having the disease

Explanation:

Tay-Sachs disease is an autosomal recessive disorder that means a child will acquire the phenotype or we can say disease only when both the alleles which cause disease are present in the child.

Here, in this condition neither parent has Tay-Sachs but they gave birth to a child who is suffering from the disease then it simply means that both the parents are carrier of this disease i.e. they both are heterozygous.

The cross and probability of healthy and diseased child is shown as under:

                          Mother        Father

Parents                    Tt               Tt

                              /        |          |     \

Off-springs         TT      Tt       Tt      tt

<u>Out of these 4 probable off-springs only 3 with genotype TT, Tt & Tt  will be healthy while the 1 with genotype tt will be diseased.</u><u> </u><u>So, the probability of diseased child is 1/4 which is 25%. </u>

Also, the birth of children is an independent event so if one child has already been born with this disease then it doesn't mean that the next 3 children will be healthy for sure i.e. birth of first child cannot influence the next child. In short we can also say that in the next birth, there is still 25% chance of the child being born with this disease because previous birth has nothing to do with next birth.

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What is the nurse's priority intervention when preparing for admission of a child with acute laryngotracheobronchitis? -p=[?
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List The major subdivisions or components for each of the four types of compounds carbohydrates lipids proteins and nuclear acid
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Which of the following specifies a single amino acid in a polypeptide chain?
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<span>B. the complementarity of DNA and RNA
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Which processes help return water to the oceans and lakes?
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Answer:

3

Explanation:

not 100 percent sure but i think so

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