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Alexandra [31]
3 years ago
14

Which group of microorganisms is composed only of hereditary material wrapped in a protein

Biology
1 answer:
dezoksy [38]3 years ago
7 0
I am pretty sure the answer is a virus
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What results from the addition or deletion of nucleotides in any number except a multiple of 3?
eimsori [14]
Addition or deletion of nucleotides in any number besides 3 results in a "frame-shift mutation."
This is because every 3 nucleotides of DNA/mRNA exons codes for a single amino acid in the synthesis of a protein. This triplet codon theory means that if 3 nucleotides are added or deleted then an amino acid will be added or lost, but subsequent codons and amino acids will still be read correctly.
However, if any number of nucleotides other than 3 are added or removed, then the codons following the mutation will be out of "sync," in terms of the reading order.
Hence it is called a frame-shift mutation because it shift the reading frame when translating nucleic acids into proteins. Frame shifts will lead to the wrong amino acids being adding in the wrong order for the rest of the code after the mutation.
8 0
2 years ago
Plant cells that are specialized for cell division are most likely found in what part of a plant?
Nookie1986 [14]

Answer:

Explanation:

Terrestrial plants have stomata on the surface of their leaves. A single stomata is surrounded by two guard cells that change shape in response to environmental factors and open or close the stoma.

<em>Hope this helps (did this already) </em>

<em />

<em>: )</em>

4 0
3 years ago
Enzymes speed chemical reactions by
masha68 [24]
A. Decreasing amount of energy needed to start a reaction.
8 0
3 years ago
Pls help asap im timed
Kaylis [27]

Answer:

B. A small fraction of the energy is transferred to higher trophic levels, majority stays in the lower trophic levels

Explanation:

Energy transfer between trophic levels is insufficient. When an organism is eaten by another organism, not all of the biomass of prey forms the biomass of the predator. Majority of the energy is released into environment during cellular respiration. Some of the matter also remains undigested and is not used by the predator. Thus, only 10% of energy available at one level is transferred to the next level. So when we keep on moving up in a food chain, energy available keeps on decreasing.

3 0
3 years ago
NEED HELP PRETTY PLEASE WITH A CHERRY ON TOP
Kruka [31]

ANSWERS:

They are both ionic compounds.

These compounds are made up of H^{+} cations (positively-charged ion) and either NO_{3}^- or SO_{4}^{-} anions (negatively-charged ions).

Their names both end in -ic acid.

Acids are named based on their anion. With acids like these where the anion is attached to a hydrogen cation, we name such acids with the the suffix “-ic”.

They both contain polyatomic ionic.

NO_{3}^- and SO_{4}^{-} are both polyatomic ions.

"Poly-" = many

"ions" = have a + or - charge

So, yes, these are ions that are made up of several atoms (not just one atom like H^{+})

5 0
3 years ago
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