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boyakko [2]
3 years ago
8

In its earliest medical application, the herb from which amphetamines are derived was used as a treatment for __________

Biology
2 answers:
wariber [46]3 years ago
8 0
Hello!
.
The answer to your question is "asthma".
.
In its earliest medical application, the herb from which amphetamines are derived was used as a treatment for asthma.
:)
babymother [125]3 years ago
8 0
The herb known as ephedra, was used in treatment of asthma and common cold
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1. In a population of 200 field mice, 98 mice are homozygous dominant for brown fur (FF), 84 mice are heterozygous (Ff), and 18
iVinArrow [24]
A.
The genotype frequencies can be determined by dividing the number of individuals with a genotype by the total number all the individuals. 
FF genotype frequency:
98÷200=0,49. There are approximately 5 <span>homozygous dominant mice in 10.
Ff genotype frequency:
84</span>÷200=0,42. There are approximately 4 <span>heterozygous mice in 10.
ff genotype frequency:
18</span>÷200=0,09. There are approximately 1 <span>homozygous recessive mouse in 10.

B.
To determine the frequency of an allele we can divide the number of times that the allele appears by the total number of alleles.
F allele frequency:
</span>\frac{(98*2)+84}{400}<span>=0.7
There are 7 F alleles in 10 random alleles.
f </span>allele frequency:
\frac{84+(18*2)}{400}=0.3
There are 3 f alleles in 10 random alleles.<span>
</span>
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kenny6666 [7]
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3 years ago
Which of the following is a value of biodiversity?
Debora [2.8K]
Healthy Ecosystems I believe 
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Drosophila melanogaster (select all that apply): Group of answer choices Have the significant disadvantage of a multiple-month l
vovikov84 [41]

Answer:

Contains large polytene chromosome that permit visual inspection of genomic events.

Were used to study the genetic effects of mutations.

Were used to establish the concept of chromosomal inheritance.

Explanation:

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Because of these characteristics, Thomas Hunt Morgan wanted to study the factors of inheritance on the <em>Drosophila</em> and concluded in the form of the chromosomal theory of inheritance by the effect of mutation on genes that lead to linkage mapping.

Also, the salivary gland of fruit fly contains the polytene chromosome which allows us to look into the gene events.

Thus, the selected options are correct.

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