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dimulka [17.4K]
3 years ago
13

Which safety practice should always be done at the beginning and the end of a microbiology lab

Biology
1 answer:
Rufina [12.5K]3 years ago
6 0

Answer:

<em>Hand Washing</em> is one of the most important practices when it comes to avoid spreading germs due it helps removing microorganisms and potential pathogens that could be left on after regular activities which would alter the results of lab experiments, and also could easily remain after such lab experiments which could lead to the propagation of bacteria or harmful chemicals.

Explanation:

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Which of the following are located on a plant's leaves?
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3 years ago
1. Walking through the forest, you find a large population of toadstools. From your extensive knowledge of the kingdom fungi, yo
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Answer:

No, observed and expected frequencies are different.

Observed frequencies: p2 = 0.56 , 2pq = 0.375, q2 = 0.062

Expected frequencies: p2 = 0.774 , 2pq = 0.211, q2 = 0.014

Explanation:

Given frequency of recessive genotype (q2)= 14/ 1006 = 0.0139

Frequency of recessive allele s (q) = square root of 0.0139 = 0.12

Frequency of dominant allele S (p) = 1-q = 1-0.12 = 0.88

Expected frequency of homozygous recessive genotype = 0.12 x 0.12 = 0.014

Expected frequency of homozygous dominant genotype = 0.88 x 0.88 = 0.774

Expected frequency of heterozygous dominant genotype = 2pq = 2 x 0.88 x 0.12 = 0.211

Observed frequencies in population 2

Observed frequency of homozygous dominant genotype = 308 / 549 =0.56

Observed frequency of heterozygous dominant genotype = 206 / 549 =0.375

Observed frequency of homozygous recessive genotype = 34 / 549 =0.062

Observed frequencies do not match with expected frequencies.

6 0
3 years ago
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