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blondinia [14]
3 years ago
14

What are some sources of bacteria in water in the environment

Biology
1 answer:
Sonja [21]3 years ago
7 0

Answer:HOW DO INFECTIOUS MICROORGANISMS CONTAMINATE DRINKING WATER? animal waste. Wells and other drinking water sources can be contaminated by storm water run-off from roadways, farms and livestock operations, discharges from sewage treatment plants, or septic system discharges.

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Assume that you are studying a trait determined by a number of polygenes. if there are seven phenotypic categories, how many gen
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There should be 3 genes involved in the seven phenotypic categories 
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3 years ago
Classify each RNA post-transcription processing event according to whether it occurs in prokaryotes or eukaryotes.
tigry1 [53]

'RNA is transcribed and translated in the cytoplasm', 'transcription produces an mRNA ready for translation' and 'RNA is proofread for errors' occur in prokaryotes, whereas '5′ cap, 3' poly-(A) tail and RNA splicing' occur in eukaryotes.

The prokaryotic cells (e.g., bacterial cells) do not contain cell nuclei, thereby the messenger RNA (mRNA) must be transcribed and translated in the cytoplasm.

During prokaryotic transcription, the RNA transcript is proofread for errors. In bacteria, DNA polymerases proofread the transcript by using their 3’ → 5’ exonuclease activity.

In eukaryotic cells, RNA processing consists of several mechanisms:

  • A 7-methylguanosine cap (5′ cap) is added to the 5′ end of the precursor messenger RNA (pre-mRNA).

  • A 3' poly-Adenine (A) tail is added to the 3' end of the pre-mRNA.

  • Both the 5′ cap and 3' poly-(A) tail protect the RNA transcript from its degradation by exonucleases.

  • Eukaryotic RNA splicing consists of the removal of non-coding regions called 'introns' and subsequent splicing of the protein-coding regions called 'exons'.

Learn more in:

brainly.com/question/24415778

7 0
2 years ago
True or false: a proper reptile habitat should include a "hot rock."
tester [92]
Your answer is false
6 0
3 years ago
Vanda's genetic makeup is composed of thousands of genes in which some are expressed and directly observable, while some are not
Alexandra [31]
Genotype. A human being's genome is made up of approximately 3 billion base pairs which make up about 2000 genes. Individuals, however, differ slightly in the sequence of their DNA in some regions. This unique genome identity is the indivudual genotype. Sequence of DNA in a genome can nowadays be determined through sequencing using Next Generation Sequencing machines
7 0
3 years ago
When the sun, moon, and Earth line up to form a solar eclipse, which body is in the center?
erastovalidia [21]

\huge\boxed{\text{The Moon}}

A solar eclipse occurs when the Moon is between the Earth and the Sun.

The Moon casts a shadow over the Earth, fully or partially blocking out sunlight.

Because of how the Moon is positioned at these times, solar eclipses only occur during the new moon phase. However, not every new moon comes with a solar eclipse.

5 0
3 years ago
Read 2 more answers
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