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How are hair and nails similar in structure?
Both are made from a structural protein called Keratin.
What structure is most similar to the protein shell in a virus?
A protein shell in a virus is most similar in structure to a capsid, which is a protein shell that encloses the genetic material of a virus. Capsids provide protection to the viral genetic material and help in the process of host cell infection.
How does the structure of macromolecules such as proteins act as an index of relatedness between species?
Organic molecules that just so happen to weigh more than 100,000 daltons, are from that point on then referred to as macromolecules which is related between the species.
Which gene in c elegans encodes a protein similar in sequence to human elastase?
gene ID: 182375 on ncbi.nlm.gov/entrez
Are spirogyra isogametes or heterogametes?
Spirogyra are isogametes as the two participating gametes are similar in size and morphology.
If one amino acid in a protein sequence is changed what could happen?
If a single amino acid is changed in a protein sequence, it can lead to a change in the protein's structure and function. This change can result in a loss of function, altered function, or gain of function, depending on the specific amino acid substitution and its location within the protein. Denaturation or misfolding of the protein may also occur in some cases.
Do mutations always alter the encoded protein structure and function?
No. Since a mutation in the DNA may not necessarily result in a change to the encoded amino acid in the protein sequence, it is entirely possible. Further, the protein function will likely not change when an amino acid is replaced with one of similar chemical properties. Sometimes it does, sometimes it doesn't. This is the field that molecular evolutionary biologists study.
Why silk smells like burning hair?
Silk is made from natural protein fibers, similar to human hair. When silk is burned, it releases a scent that is similar to burning hair due to the breakdown of the protein structure.
What are a group of cells of similar morphology carrying out common functions?
Tissue
Why can missenes mutations not have an effect on protein function?
Say the part of the gene that is mutated does not change the amino acid sequence of the protein made through the mRNA; hydrophobic amino acid stays hydrophobic. We have many of these small nucleotide polymorphisms in our genomes and they are useful trackers of human migrations, for instance.
Does mRna contain the code for the sequence of amino acids needed to manufacture a protein?
Yes it does, and more. Ahead of, or in front of, the protein coding sequence we find the multi-purpose Leader Sequence[s]. They provide the 'addresses' for the locations where the Proteins are [pre-] destined to reside.Now, the Cell has many Levels, and specific Proteins need to be assigned or Destined to specific Levels. This is what was meant by 'multi-purpose leader sequences': When a Protein arrives at Level One - if it is meant to be there the Leader Sequence is removed and the Protein takes up residence. Otherwise, just a portion of the Leader Sequence is removed, then the rest moves on to the next Level and the similar Process again occurs.Eventually the last remaining piece of the Leader Sequence directs the Outermost Destined Protein to the Outermost Layer of the Cell, the Cell membrane, where it takes up useful residence.
What is something similar to microtubules?
Microfilaments, also known as actin filaments, are similar to microtubules in that they are protein filaments that are part of the cytoskeleton in cells. They are involved in cell structure, support, and movement.
