Answer:
b. Alternatives to nonrenewable energy sources can be as effective.
Explanation:
Answer:
In this case, it is likely that the polypeptide chain assumed an alpha helix configuration because the lipid bilayer did not have beta-barrel proteins.
Explanation:
A polypeptide chain is naturally polar, however, a lipid bilayer is naturally non-polar. This makes it difficult and even prevents the polypeptide chain from crossing a lipid bilayer, since the composition of these two elements does not allow them to mix. In that case, the polypeptide chain has two options to take to successfully cross the lipid bilayer.
The first option that the polypeptide chain has is to allow the creation of twisted beta sheets in the shape of a closed barrel in its structure. This only works if the lipid bilayer has beta barrel proteins in its composition to act as a transport channel for the polypeptide chain. However, few lipid layers have this protein.
Most likely, the polypeptide chain assumes an alpha helix conformation to cross lipid bilayers that do not have beta-barrel proteins. By assuming the beta conformation, the polypeptide chain reinforces the hydrogen bonds present in its composition, allowing it to cross the lipid bilayer without having its conformation and structure disassembled.
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Answer:</h2>
Mutations lead to new genes, which may have an advantage over the old forms, causing the species to evolve.
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Explanation:</h2>
Mutation assumes a significant job in evolution. A definitive wellspring of all hereditary variety is a mutation. It is significant as the initial step of development since it makes another DNA succession for specific quality, making another allele.
Recombination additionally can make another DNA succession (another allele) for a particular quality through intragenic recombination. Mutation going about as a developmental power independent from anyone else can possibly cause huge changes in allele frequencies over exceptionally significant stretches of time.
The answer is <span>Stage 1: The thylakoid captures light energy. Stage 2: Chlorophyll converts it to chemical energy.
</span><span>Photosynthesis is a process in which plant produce sugar and oxygen from water and carbon dioxide using the energy of sunlight. Cells of the green leaves contain chloroplasts. </span><span>Thylakoids are the part of chloroplasts where the light-dependent reactions of the photosynthesis occur. They capture light energy, so chlorophyll inside the chloroplast can convert it to chemical energy.
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