How might an enrichment culture be used to isolate bacteria capable of degrading pesticides and other hazardous wastes?

How might an enrichment culture be used to isolate bacteria capable of degrading pesticides and other hazardous wastes?
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Pesticides are considered as hazardous because they

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Most abundant water pollutant is a) Detergents b) Pesticides c) Industrial wastes d) Ammonia.

Description : Most abundant water pollutant is a) Detergents b) Pesticides c) Industrial wastes d) Ammonia. 

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Which of the following radioactive wastes emits all α, β & γ rays and hence is the most hazardous of all radioactive emitters? (A) I-131 (B) Sr-90 (C) Au-198 (D) Ra-226

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In 1976, Congress enacted the Resource Conservation and Recovery Act designed to protect public health and the environment from improper management of hazardous waste. The Resource Conservation and Recovery Act categorizes hazardous wastes into four groups. Identify three of the four groups.

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Last Answer : ANSWER: TOXIC (POISONOUS), REACTIVE, IGNITABLE, AND CORROSIVE

Which of the following is not correctly matched for the organism and its cell wall degrading enzyme? (a) Algae – Methylase (b) Fungi – Chitinase (c) Bacteria – Lysozyme (d) Plant cells – Cellulase

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n lysogeny, A- a bacteriophage transfers bacterial DNA B- bacteria take up double stranded DNA from the environment C- DNA-degrading enzymes in the extracellular medium would stop the process D- a bacteriophage genome is integrated into the bacterial genome

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Last Answer : a bacteriophage genome is integrated into the bacterial genome

Selective media facilitate growth of only one kind of organism.Saboraud medium is used to selectively isolate A- coliform bacteria B- gram positive bacteria C- .yeasts D- acid fast organisms

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Last Answer : .yeasts

When a substance is added to a liquid medium which inhibits the growth of unwanted bacteriaand favors the growth of wanted bacteria, it is known as A- differential medium B- enriched medium C- enrichment medium D-selective medium

Description : When a substance is added to a liquid medium which inhibits the growth of unwanted bacteriaand favors the growth of wanted bacteria, it is known as A- differential medium B- enriched medium C- enrichment medium D-selective medium

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Biodegradable wastes can usually be converted into useful substances with the help of - (1) Bacteria (2) Nuclear proteins (3) Radioactive substances (4) Viruses

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Last Answer : (1) Bacteria Explanation: Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms such as ... or a resource for heat, electricity and fuel by means of incineration or anaerobic digestion.

Biodegradable wastes can usually be converted into useful substances with the help of - (1) bacteria (2) nuclear proteins (3) radioactive substances (4) viruses

Description : Biodegradable wastes can usually be converted into useful substances with the help of - (1) bacteria (2) nuclear proteins (3) radioactive substances (4) viruses

Last Answer : (1) bacteria Explanation: Biodegradable waste is a type of waste, typically originating from plant or animal sources, which may be degraded by other living organisms.

Biogradable wastes can usually be converted into useful substances with the help of: (1) nuclear proteins (2) radio-active substances (3) viruses (4) bacteria

Description : Biogradable wastes can usually be converted into useful substances with the help of: (1) nuclear proteins (2) radio-active substances (3) viruses (4) bacteria

Last Answer : (4) bacteria Explanation: Bacteria can convert biodegradable wastes into useful substances.

Biodegradable wastes can usually be converted into useful substances with the help of - (1) Bacteria (2) Nuclear proteins (3) Radioactive substances (4) Viruses

Description : Biodegradable wastes can usually be converted into useful substances with the help of - (1) Bacteria (2) Nuclear proteins (3) Radioactive substances (4) Viruses

Last Answer : (1) Bacteria Explanation: Bacteria are the most abundant organisms which play important role in the decomposition of organic matter. Majority of bacteria involved in decomposition of organic ... and autotrophs are least in proportion which are not directly involved in organic matter decomposition.

Biodegradable wastes can usually be converted into useful substances with the help of (1) Bacteria (2) Nuclear proteins (3) Radioactive substances (4) Viruses

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Last Answer : Bacteria

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In the extracellular medium, DNA-degrading enzymes would likely be to prevent transfer of DNA by A- conjugal transfer by a self-transmissible plasmid B- generalized phage transduction C- natural transformation D- none of the above

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