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Mazyrski [523]
3 years ago
11

An outbreak of food poisoning occurs at a family picnic after the growth of Staphylococcus aureus in refrigerated potato salad l

eft sitting in the hot sun for several hours. What would microscopic examination of the potato salad reveal
Biology
1 answer:
kozerog [31]3 years ago
3 0

Answer:

clusters of round shape bacteria

Explanation:

Microscopic examination of the potato salad should reveal <u>clusters of round shape bacterium. </u>

Staphylococcus or Staphylococcal are those that are round in shape (from the word 'coccus') and occur in clusters as opposed to individually or in chains. The word is derived from two Greek words - <em>staphyle</em> which means <em>bunch of grapes</em> and <em>kokkos</em> which means <em>to be round</em>.

Hence, <u>when a magnified image of the Staphylococcus aureus is produced by the microscope, clusters of round shape bacteria would be seen</u>.

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Phenylketonuria (PKU) is a genetic disease caused by the inability to break down the amino acid phenylalanine. If untreated it l
tiny-mole [99]

Answer:

Therefore, 98% of the US population have no alleles for PKU

Explanation:

The Hardy-Weinberg equilibrium states that the amount of genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.

The Hardy-Weinberg equilibrium is expressed quantitatively using a mathematical equation known as the Hardy-Weinberg equation. the equation is given below:

p² + 2pq + q² = 1

also, p + q = 1

Given a pair of alleles, S and s with A dominant and a recessive

where p is the frequency of the dominant allele in the population,

q is the frequency of the recessive allele in the population,

p² represents the frequency of the (SS)  dominant genotype,

q² represents the frequency of the (ss) recessive genotype,

2pq represents the frequency of the heterozygous genotype

From the given question,

q² = 1/10000 = 0.0001

q = 0.01

from p + q = 1

p = 1 - 0.01 = 0.99

p² = 0.98

Therefore, 98% of the US population have no alleles for PKU

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In Wisconsin a very large population of lake trout in which individuals mate at random experiences no migration mutation nor sel
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