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ratelena [41]
2 years ago
9

Which of the following statements best represents how structure relates to function? A predatory snake is able to see birds with

violet feathers better than birds with green feathers. Some insects are able to live longer than others. A horse's mane is often black. Red blood cells are round in order to move easily through blood vessels.
BOOM 100 POINTS!
Biology
1 answer:
IrinaK [193]2 years ago
5 0

Answer:the last one

Explanation: red blood cells are round in order to move easily through blood vessels.

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Population bottlenecks.  but their genes still carry the marks of this bottleneck: they have much less genetic variation than a population of southern elephant seals that was not so intensely hunted.

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Need a hypothesis for “How are proteins built from RNA”
Dima020 [189]

Hi!


Hypothesis:

<em>Proteins are built from the translation of messenger RNA (mRNA) molecules</em>


RNA, or ribonucleic acid, is a structure that is similar to DNA, except that it exists as a single strand, consists of a ribose sugar instead of a deoxyribose sugar and has the base uracil (U) instead of thyamine (T).


<h3><u>From DNA to RNA</u></h3>

RNA is generated through transcription of the DNA molecule, resulting in a <em>complementary </em>molecule of the template DNA strand. For instance, if the sequence of the DNA was:

ATGCGCAGTTATTGCGAT

The corresponding RNA sequence will be:

UACGCGUCAAUAACGCUA    <em>(complementary with U instead of T)</em>


<h3><u>From RNA to Protein</u></h3>

The RNA molecule in our case is known as the mRNA. After transcription the mRNA molecule is transported to the cytoplasm, where a ribosome binds to it for another molecule to translate the sequence. This translation is mediated by an RNA molecule known as the tRNA molecule which enters the ribosome to catalyze the reaction.

These molecules identify a sequence of 3 bases (codon) and for specific codon sequences, the tRNA allocates specific amino acid. For instance, for the codon <em>UCA</em>, the tRNA will allocate a <em>Serine residue.</em>

This translation process starts at specific three base sequences, known as start codons, and terminates at specific three base sequences known as stop codons.

In this manner, a sequence of amino acids respective to the mRNA codon sequence is synthesized, and as we identify proteins as chains of amino acids that are covalently linked together through peptide bonds, we can clearly see that proteins are built directly from RNA, and indirectly from DNA.


Hope this helps!


3 0
3 years ago
In the polymerization of DNA, a phosphodiester bond is formed between a phosphate group of the nucleotide being added and which
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Answer: B

Explanation:

During polymerization of nucleotides to form nucleic acids, the hydroxyl group on the phosphate group attaches to the 3’ carbon of a sugar of one nucleotide to form an ester bond to the phosphate of another nucleotide. The reaction forms a phosphodiester linkage and eliminates a water molecule.

The DNA strands generally runs from 5 prime to 3 prime direction.

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3 years ago
Golgi bodies are organelles that process and package macromolecules, such as proteins and lipids, for export out of the cell. Gi
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Gland cells are most likely to possess a large number of Golgi bodies.

Please mark my answer as the brainliest answer, I'd really appreciate it, thanks!
6 0
3 years ago
__________ is also known as zero waste.
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<h2>Answer:</h2><h2><em><u>Option</u></em><em><u> </u></em><em><u>B</u></em><em><u> </u></em></h2><h2><em><u>I</u></em><em><u> </u></em><em><u>think</u></em></h2>

<em>Zero Waste: The conservation of all resources by means of responsible production, consumption, reuse, and recovery of products, packaging, and materials without burning and with no discharges to land, water, or air that threaten the environment or human health.”</em>

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