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Neporo4naja [7]
3 years ago
10

Which of these is an advantage of using natural gas? A. Equipment failure and human error can lead to oil spills. B. It releases

chemicals that make acid rain. C. Scrubbers on smokestacks do not eliminate air pollution. D. It burns more cleanly than coal or oil.
Biology
1 answer:
Volgvan3 years ago
3 0

Answer:

D

Explanation:

it burns more cleanly than coal or oil

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The chromosome wouldn’t be able to replicate

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Without an origin of replication, the chromosome could not be copied prior to mitosis.

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4. The pattern of inheritance in which more than one pair of genes affects a trait
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Which of the following is a source of genetic variation within a species?
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Which organisms in the table is (are) most similar to a tiger (Panthera tigris)? explain
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Why did we need to measure the absorbance at two wavelengths during the beta-galactosidase lab?
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While the absorbance at 420 nm is related to the amount of o-nitrophenol produced, the absorbance at 600 nm is proportional to cell density, which aids in standardizing our estimations of enzyme activity.

<h3>Describe absorbance.</h3>

The amount of light absorbed by a solution is measured by its absorbance (A), often referred to as optical density (OD). The amount of light that may flow through a solution is called its transmittance.

<h3>How is the activity of beta-galactosidase determined?</h3>

The colorless ONPG substrate is changed by beta-Galactosidase into galactose and the chromophore o-nitrophenol, which results in a vivid yellow solution. The amount of substrate transformed at 420 nm can be calculated by measuring the solution's beta-galactosidase activity using a spectrophotometer or a microplate reader.

<h3>What is measured by the beta-galactosidase assay?</h3>

The -Gal Assay Kit gives users the tools they need to swiftly assess the amounts of active beta-galactosidase expressed in cells that have been transfected with plasmids encoding the lacZ gene.

learn more about absorbance here

<u>brainly.com/question/26830274</u>

#SPJ4

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