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3 years ago

In dna methylation, which nitrogenous base is most frequently methylated?

1 answer:

6 0

In DNA methylation, the most frequently methylated nitrogenous base is the cytosine. Its methylation is widespread in prokaryotes and eukaryotes. Its rate of DNA methylation differs greatly between different species like Arabidopsis thaliana which is 8%, Physarum, 4%, Mus musculus, 2.3%, and etc.

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Contaminated soil can be rehabilitated by physical remediation methods, like aeration. What is another way soil can be treated t

Ivanshal [37]

Answer:

C) Flush out the contaminants with an excessive amount of water.

Explanation:

Water is universal solvent. It dissolve many solutes inside it. Soil is contaminated with number of chemicals which is used by farmers for the controlling of pathogens. These chemicals remains on the soil for very long time. These chemicals are removed from the soil by applying high amount of water which flush out the chemicals from the soil.

4 0

3 years ago

Read 2 more answers

In the 18th century, Carl Linnaeus published a system for classifying living things, which has been developed into the modern

Mazyrski [523]

Cavalier-Smith's model no longer separates prokaryotes and eukaryotes is the statement which differs from kingdom classification.

Explanation:

Cavalier-Smith in 1998 had reduced the kingdom numbers. The were brought down from 8 to 6. These are:

Animalia

Protozoa

fungi

plantae

chromista

bacteria

He divided eukaryotes into 6 kingdoms. The kingdoms are refined for better classification.

While Carolus Linnaeus divided the organisms into two kingdoms

Animalia and plantae.

The five kingdom classification:

Monera (prpkaryotes)

Protista ( unicellular eukaryotes)

fungi (multicellular decomposers)

plantae (multicellular producers)

Animalia (multicellular consumers)

It has drawbacks like in kingdom monera both autotrophs and heterotrophs are included. Phylogeny is not explained in lower organisms of monera and protista. Virus is also in classification. Cavalier-Smith introduced a new kingdom called chromista which are single- celled or multicellular eukaryotic organisms as diatoms, algae, oomycetes and protozoans which perform photosynthesis.

6 0

3 years ago

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The unique shape that a mineral grows into is called its…

Rama09 [41]

Answer:

Crystal form refers to the geometric shape of mineral crystals. Crystal form is caused by the symmetrical, three-dimensional arrangement of atoms inside the mineral.

Explanation:

4 0

2 years ago

How does a prokaryotic cell such as bacteria differ from eukaryotic cells?

LenKa [72]

Answer:

The main difference is that EUKARYOTIC cells have a nucleus while a PROKARYOTIC cell does not. Instead, prokaryotes have free floating genetic material.

Explanation:

To help you remember this distinction:

EU = YES eukaryotes HAVE a nucleus.

PRO = NO prokaryotes DO NOT have a nucleus.

I hope this helps and good luck with your assignment.

3 0

3 years ago

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Nonmetals take __________ from the metals they are attracted to.

Svetradugi [14.3K]

Nonmetals take electrons from the metals they are attracted to in order to become stable.

5 0

3 years ago