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Eukaryotic genes contain all the information required to make the all proteins that all the cells in the organism will need. However, mRNA in cells only copies the region of DNA (gene) that is necessary for that cell. Hence, selectively copying DNA, leaving out junk DNA, the introns, and only copying necessary regions of the DNA, the exons.
Further explanation:
In DNA, there are many genes (segments of DNA). Some of these genes may be useful while others may not be useful. For example, for a cell found in the mouth, the gene that codes for insulin is not necessary, but the gene that codes for amylase is necessary. As the DNA in all of our cells are the same, this results in unnecessary genes known as introns. These introns will not be copied by the mRNA. Only the exons (necessary genes) will be copied.
Thus resulting in a shorter mRNA as compared to DNA.
Genes contain DNA sequences that not only code for the mRNA that is translated into proteins, but also include non-coding regions such as introns. Introns are removed during mRNA processing, so the final mRNA is shorter than the gene it is transcribed from. Additionally, genes may contain regulatory sequences or other non-coding regions that are not translated into proteins, contributing to their longer length.
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Which RNA is involved in transcription?
During transcription, messenger RNA (mRNA) is synthesized by RNA polymerase using DNA as a template. This mRNA carries the genetic information from the DNA to the ribosomes where it is translated into protein.
What are the functions of the ribosomes in mitochondria?
Ribosomes in mitochondria are responsible for protein synthesis within the organelle. They translate the genetic information stored in mitochondrial DNA into functional proteins that are crucial for the mitochondria to carry out its various functions, such as energy production through cellular respiration. Mitochondrial ribosomes are unique in structure and composition compared to ribosomes in the cytoplasm.
What are genes that do not undergo independent assortment called?
Genes that do not undergo independent assortment are linked genes. These genes are located on the same chromosome and tend to be inherited together more often than would be expected by chance.
How long is the mRNA that codes for the protein with 250 amino acid?
The length of an mRNA that codes for a protein with 250 amino acids would be around 750 nucleotides. This is because each amino acid is coded for by a sequence of three nucleotides called a codon. So, 250 amino acids x 3 nucleotides = 750 nucleotides.
Which is more complex chromosome or gene?
Chromosome is more complex than gene. Chromosomes contain multiple genes along with other regulatory elements, while genes are specific sequences of DNA that encode for proteins or RNA molecules. Chromosomes also play a role in organizing and packaging genes within the cell nucleus.
When isolation the gene why is better to obtain its mRNA?
Obtaining mRNA is better for isolating genes because mRNA is a direct transcript of the gene and reflects the active genes in the cell at a given time. This allows for the study of gene expression levels and regulation. Additionally, mRNA is typically more abundant than genomic DNA, making it easier to work with in experiments.
Are all RNA translated?
No, not all RNA molecules are translated into proteins. Some RNAs, such as transfer RNA (tRNA) and ribosomal RNA (rRNA), have roles in the process of translation itself rather than being the templates for protein synthesis. Additionally, some RNA molecules function in processes like gene regulation and serving as enzymes (ribozymes).
Why is the bird ont the right more likely to pass on its genes than the bird on the left?
The bird on the right is more likely to pass on its genes because it has a longer beak so it can get more food and eat more making it more likely to pass on its genes.
Is an exon part of an intron?
No, an exon is not part of an intron. Exons are the coding regions of a gene that are transcribed into mRNA and translated into proteins, while introns are non-coding regions that are removed during RNA processing.
Which RNA is involved in transcription?
During transcription, messenger RNA (mRNA) is synthesized by RNA polymerase using DNA as a template. This mRNA carries the genetic information from the DNA to the ribosomes where it is translated into protein.
Is it true that you are more than the sum of your genes?
The answer is No you are not more then your genes.
How do people live longer than 100 years?
they get lucky, usually it has something to do with were they grew up and how healthy they have kept themselves, sometimes it can also be a abnormality in genes
What amino acid wuld be produced of transcrition takes place from a nucleotide with the three-base sequence ATA?
Transcription from the nucleotide sequence ATA would result in the mRNA codon UAU. This mRNA codon would then be translated during protein synthesis to produce the amino acid tyrosine.
Can a single mRNA be more than once?
Idont know
Do plasmids have protein?
Yes, plasmids can contain genes that code for proteins. These genes are transcribed and translated by the host cell's machinery to produce the proteins encoded by the plasmid.
Why is protein different in prokaryotes and eukaryotes?
In prokaryotes, DNA is stored in the cytoplasm. also prokaryotes have no nucleus In prokaryotes, transcription and translation happen at the same time.
What would most likely happen if an error occurred when RNA was receiving coding information?
The tRNA carries the amino acid on it into the ribosome where the amino acid is transferred on to a growing protein chain. If the wrong amino acid is on the tRNA, and the ribosome accepts the tRNA with the error and incorporates the amino acid into the protein at a mRNA codon that matches the tRNA, there will be an error in the protein being synthesized. It may not matter, or it may cause the protein to not be able to carry out its normal function. Conceivably, more than one protein can contain an error depending on what mRNA's are being translated.
