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What is the relationship between dna rna and protein synthesis?
The process of proteins synthesis starts with DNA which contains the information that is going to be used to create the proteins. A molecule called RNA polymerase uses one of the two DNA strands as a template to create an mRNA molecule which contains the base pairs that complement the DNA strand. If the cell is a eukaryotic cell then the mRNA molecule needs to leave the nucleus and then attach to a ribosome. If the cell is prokaryotic then the ribosome binds without the mRNA molecule having to be moved locations (in fact the mRNA doesnt even have to be complete for a ribosome to begin its process). So the ribosome attaches to the mRNA and as each codon (group of three base pairs) moves into each of the three spots in the ribosome, it gets read, then a tRNA molecule brings and matches a protein subunit which gets attached to the chain of protein subunits that are being created and then the codon exits the ribosome. The ribosome knows to attach because of a "start codon" that is usually AUG and knows to stop adding to the protein chain when it reaches a "stop codon".
What does myosin attach to?
During muscle contraction, myosin cross bridges attach to active sites of ACTIN FILAMENTS.
What does it mean when we say that the two strands of DNA in the double helix are antiparallel?
DNA strands are antiparallel for the integrity of the molecule. This allows formation of the hydrogen bonds between nitrogenous bases. If they were not antiparallel the bonds would not be possible.
What is the molecular basis of heredity?
The traits our body has whether they be apparent or not are the result of DNA. DNA stands for deoxyribonucleic acid. The basic idea is that DNA traits results from the sequence of four nitrogenous bases. They are adenine, guanine, cytosine, and thymine. They pair with each other in the following way: adenine to thymine and guanine to cytosine. DNA is a double helix structure, which is basically two ladders twisted around each other. The two strands are attached by the nitrogenous bases mentioned before. The first idea of DNA's relationship towards heredity is that when the cell divides and forms new cells such ,as when sperm and egg meet, the two strands are pulled apart. From this both of the strands are copied to form what is called RNA, which is ribonucleic acid. Now that there is a copy of the DNA, the process goes onto processing of the RNA strands. That entails deleting parts of it and preparing it for the next step. After this, a cellular structure called a ribosome attaches to the RNA. It goes through the whole RNA strand, three nitrogenous bases at a time. This process all takes place inside of the cell but outside of the nucleus. Inside this, there are these structures known as tRNA. They attach to the ribosome in a way that they match with the RNA strand. Furthermore, at the end of the tRNA is an amino acid. So, when this is done, there is a chain of amino acids. This is a protein. Proteins are the building blocks of an organism. So, to summarize, the sequence in which the nitrogenous bases are presented in DNA relates to the formation of proteins and the traits of the organism.
What structure make blood cells and provide muscles to attach?
the correct answer is bone.
What are protein strands that attach to the centromere?
Spindle fibers.
Fibers in the spindle that attach to the centromere of the chromosomes?
These are called kinetochore fibers. They are microtubules that attach to the kinetochore, a protein structure on the centromere of the chromosome, helping to move the chromosomes during cell division.
What is the difference between kinetochore and centromere?
The centromere is a region of a chromosome that plays a role in chromosome segregation during cell division. The kinetochore is a protein structure located at the centromere that helps attach the chromosome to the mitotic spindle during cell division. In summary, the centromere is a DNA region while the kinetochore is a protein structure located within the centromere region.
What is the region of a chromosome where two sister chromatids attach?
The region of a chromosome where two sister chromatids attach is called the centromere. It appears as a constricted area on the chromosome, serving as a site for protein binding and attachment of spindle fibers during cell division. The centromere plays a crucial role in ensuring proper segregation of chromosomes during mitosis and meiosis.
To which part of the centromere do mitotic spindle fibers attach during prometaphase?
The centromeres of chromosomes attach to the spindle fibers during metaphase. The spindle fibers bring about the separation of sister chromosomes to the opposite poles. When spindle fibers do not attach to the centromeres, the doubling of chromosomes leads to polyploidy in the cell.
What joins chromosomes arms together and is the place where spindle fibers attach to each chromosome?
The structure that joins chromosome arms together is called the centromere. The centromere is essential for proper chromosome segregation during cell division and is the point where spindle fibers attach to the chromosome to facilitate this process.
During mitosis microtubles attach to chromosomes at the?
kinetochores, which are protein structures found at the centromere of each chromosome. The microtubules attach to the kinetochores and help to accurately separate the duplicated chromosomes into two daughter cells during cell division.
How does endomembrane system work together with the ribosomes?
The rough endoplasmic reticulum (RER) is where ribosomes will congregate to attach onto mRNA strands and transcribe the mRNA into protein strands. The smooth endoplasmic reticulum (SER) is where the protein strands made in the RER are folded, checked for problems and labeled for delivery to the appropriate location (cell membrane, other organelles, to be stored in a lysosome, etc.).
Where do microtubules attach to chromosomes during mitosis?
Microtubules attach to chromosomes at the kinetochore, a protein structure located at the centromere region of each chromosome. This attachment ensures accurate segregation of chromosomes during mitosis.
Where do spindle fibers attach to chromosomes?
I am at least 70% sure that they attach to the centriole which binds the chromosome together.Centrioles do not have much to do with chromosomes. Centrioles are found just floating in the cytoplasm, while chromosomes are in the nucleus. Chromatins, strands the chromosomes are make up of, are connected by the centromere. Therefore the spindle fibers probably attach to chromosomes in the nucleus, though I, as well, am not entirely sure.
What term is used to describe the structure at which each fibers attach to a chromosome?
The region is called the centromere.
What is the small section of a chromosome where sister chromatids attach to each other?
The small section of a chromosome where sister chromatids attach to each other is called the centromere. It plays a crucial role in ensuring accurate segregation of genetic material during cell division.
