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malfutka [58]
3 years ago
10

List three diseases transmitted to humans by polluted water.

Biology
1 answer:
Vika [28.1K]3 years ago
8 0
Typhoid, cholera, and Dysentery are diseases transmitted to humans by polluted water.
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Paramecium was found to occupy 20% of the FOV of a microscope at 40X magnification power. How many paramecium can be accommodate
lana [24]

5 Paramecium could be accommodated in this FOV.

Explanation:

FOV refers to the field of view of the microscope.

It is the maximum length or area of specimen you can observe in a single view.

If a single paramecium occupies 20 % of the Entire FOV.

Then the number of paramecium that will be accomodate 100% of FOV will be given by ,

\frac{100}{20} = 5 Paramecium.

which is equal to 5.

3 0
3 years ago
Based on the information in the table, which of the following changes is least likely to produce a phenotypic
yaroslaw [1]

GAU to GAC​ is least likely to change phenotype of an organism.

<h3><u>Explanation</u>:</h3>

Phenotype of an organism is defined as the physical characteristics of an organism. This phenotype is dependent on the genotype of the organisms. This means the phenotypic characters are actually the expressions of the genes of the organisms. Now the genes are expressed in form of codons that are the three nitrogen base sequences. Each codon codes for a particular amino acid which in turn polymerises to from the protein which actually forms the phenotype of the organism.

Now there are 20 amino acids and 64 codons. Thus there are more than 1 codons for a single amino acid. So, if a codon is replaced by another codon which codes for same amino acid, then the phenotype is least likely to be affected.

Both the GAU and  GAC​ codes for aspartic acid. So the phenotype won't be affected much by this mutation

5 0
3 years ago
The frequency of carriers for a rare autosomal recessive genetic condition is 0.04 in a population. Assuming this population is
sertanlavr [38]

Answer:

E

Explanation:

Hardy-Weinberg principle states that frequency of alelle and genotype will remain constant in the absence of genetic disturbances such as mutation, no change in the DNA sequence, the population must be large and others

the principle is defined by the equation

p² + 2pq + q² = 1

where the frequency of the dominant allele is p, and the frequency of the recessive allele is q. Going by the what is given which is for the carriers is 0.04 = 2pq

substitute the value into the expression

p² + 0.04  +  q² = 1;  The information is not enough to calculate either p or q going by the equation generated.

4 0
3 years ago
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Rosalind Franklin and Maurice Wilkins took X-ray photographs of DNA that revealed the molecule was shaped like a _____. square p
Dmitriy789 [7]
DNA is a double helix shape
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3 years ago
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How does increased heat energy affect the water cycle? Helpppp
malfutka [58]

Answer:

Heat causes liquid and frozen water to evaporate into water vapor gas, which rises high in the sky to form clouds... clouds that move over the globe and drop rain and snow. This process is a large part of the water cycle.

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3 years ago
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