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Similar amino acid sequences can indicate similar protein structure and function. Hydrophobic residues will orient the same way in solution as will polar residues. Charged amino acids are commonly found within or near the active sites enzymes. Similar amino acid sequence can also indicate a similar evolutionary origin known as convergent evolution. This is the same for unique proteins that evolved from a common ancestral protein which is known as divergent evolution.
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How are amino acid sequences used in classification?
Amino acid sequences are used in classification by comparing the similarities and differences in the sequences of proteins across different organisms. This comparative analysis can reveal evolutionary relationships, helping to classify species based on genetic lineage. Additionally, specific sequences can indicate functional traits, aiding in the identification of protein families and the understanding of biological processes. Ultimately, these sequences serve as crucial data for phylogenetic studies and taxonomy.
Biologist can compare amino-acid sequence of the same protein from two or more species sequences can be very similar or very different what do the similarities and differences tell us?
Similarities in amino acid sequences tell us the the genes coding for these proteins are similar. Similar genes are due to shared ancestry ie the organisms have evolved from a common ancestor in the past. Differences in amino acid sequence tell us that mutations have occurred in the genes since the organisms separated from the common ancestor. The bigger the differences, the longer the organisms have been separated.
If the amino acid sequences are similar in gorillas and humans why would you expect their DNA to also be similar?
Amino acid sequences are determined by the underlying DNA sequences that code for them, so similarities in amino acids suggest that the corresponding DNA sequences are also similar. Since both gorillas and humans share a common ancestor, evolutionary processes would have preserved many genetic sequences, leading to comparable DNA. Additionally, the genetic code is highly conserved, meaning that even small changes in DNA can lead to similar amino acid outputs, reinforcing the expectation of DNA similarity between the two species.
Biochemical analysts use similarities in what as evidence for evolutionary relationships?
Biochemical analysts use similarities in molecules like DNA, proteins, and enzymes as evidence for evolutionary relationships. The more similarities there are between the molecules of different organisms, the closer their evolutionary relationship is believed to be.
Which tells you more about a protein its amino acid sequences or composition?
i'd go with the amino acid sequences... they are, after all, the second genetic code, meaning they are the blueprint for the function of the amino acid.
How can amino acid sequences be used to identify the source of a virus?
Amino acid sequences can be compared to databases of known viral sequences to identify the source of a virus. This comparison can reveal similarities between the amino acid sequences of the virus in question and those of known viruses, helping to determine its origin. By analyzing these similarities, researchers can infer relationships between different viruses and trace the evolutionary history of the virus in question.
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Biologist can compare amino-acid sequence of the same protein from two or more species sequences can be very similar or very different what do the similarities and differences tell us?
Similarities in amino acid sequences tell us the the genes coding for these proteins are similar. Similar genes are due to shared ancestry ie the organisms have evolved from a common ancestor in the past. Differences in amino acid sequence tell us that mutations have occurred in the genes since the organisms separated from the common ancestor. The bigger the differences, the longer the organisms have been separated.
What are the similarities between nucleotide and amino acid sequences?
Both nucleotide and amino acid sequences are essential components of genetic material. They both consist of building blocks that are arranged in a specific order to encode genetic information. Additionally, both sequences play crucial roles in the functioning and regulation of biological processes within cells.
If the amino acid sequences are similar in gorillas and humans why would you expect their DNA to also be similar?
Amino acid sequences are determined by the underlying DNA sequences that code for them, so similarities in amino acids suggest that the corresponding DNA sequences are also similar. Since both gorillas and humans share a common ancestor, evolutionary processes would have preserved many genetic sequences, leading to comparable DNA. Additionally, the genetic code is highly conserved, meaning that even small changes in DNA can lead to similar amino acid outputs, reinforcing the expectation of DNA similarity between the two species.
What are the differences between amino acid sequence and nucleotide sequence in terms of their composition and function?
Amino acid sequences are made up of building blocks called amino acids, while nucleotide sequences are made up of building blocks called nucleotides. Amino acid sequences determine the structure and function of proteins, while nucleotide sequences determine the genetic information in DNA and RNA.
Biochemical analysts use similarities in what as evidence for evolutionary relationships?
Biochemical analysts use similarities in molecules like DNA, proteins, and enzymes as evidence for evolutionary relationships. The more similarities there are between the molecules of different organisms, the closer their evolutionary relationship is believed to be.
What is the significance of the percent identity matrix in the context of sequence alignment and evolutionary analysis?
The percent identity matrix is important in sequence alignment and evolutionary analysis because it shows the percentage of identical amino acids or nucleotides between sequences. This helps researchers understand the similarities and differences between sequences, which can provide insights into evolutionary relationships and genetic mutations.
What is identities IN BLAST?
Identities in BLAST represent the percentage of identical amino acids or nucleotides between two sequences when comparing them. It is a measure of how similar the sequences are at a specific position.
Which tells you more about a protein its amino acid sequences or composition?
i'd go with the amino acid sequences... they are, after all, the second genetic code, meaning they are the blueprint for the function of the amino acid.
The closer the amino acid sequence is between species the closer they are?
The similarity in amino acid sequences between different species often reflects their evolutionary relationship, with closely related species typically sharing a higher degree of sequence similarity. This is due to the conservation of essential proteins and functions over time, as evolutionary pressures favor maintaining certain amino acid sequences. Consequently, examining these sequences can provide insights into phylogenetic relationships, helping to trace lineage divergence and evolutionary history. Overall, the closer the amino acid sequences, the more likely the species are to have a common ancestor.
How many amino acids were changed?
To determine how many amino acids were changed, you would need to compare the amino acid sequences of the original and mutated proteins. By aligning the two sequences, you can count the positions where the amino acids differ. This count will give you the total number of changed amino acids. If you provide specific sequences or context, I can help you analyze them further.
