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Why do DNA have a double helix and the in the mRNA is a single chain?
Wiki User
∙ 17y ago
The DNA molecule is a long term molecule which has to be highly conserved in order to be able to continue to provide the code for protein synthesis. Its double strand offers some protection against mutations, and allows mRNA to copy information off both strands simultaneously, increasing the efficiency of the event. mRNA is used to copy the DNA code and transport it to the cytoplasm, where it interacts with other RNA molecules to produce a protein product. When the protein has been made the mRNA is no longer used - it is a short term molecule. The strand needs to be able to pass through the rRNA and allow tRNA to add complementary bases to form the protein product. Mutations in the single stranded mRNA are not too catastrophic for the cells, as the molecule does not last for a great length of time, and further copies of the DNA can be made that are not muated in order to create the appropriate protein product.
Wiki User
∙ 17y ago
Wiki User
∙ 15y agomRNA is like a single strand instead of a double strand. If DNA is like a twisted ladder, then mRNA is like a single half of that ladder, with only half the bases containing uracil instead thymine.
Wiki User
∙ 12y agoIn sexual reproduction, one half of a strand comes form mom and the other half comes from dad, making one set of DNA
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If DNA is described as a double helix how should mRNA be described-?
mRNA is like a single strand instead of a double strand. If DNA is like a twisted ladder, then mRNA is like a single half of that ladder, with only half the bases.
What new product is formed at the DNA strand?
RNA does, in contrast to DNA, form short double strand structures on itself, thereby forming so called stem and loop structures.
How do you translate the mRNA code?
Codes for the nuetrons in a basis of natural science when given a double helix structure follwed by a codon enzyme
What can leave the nucleus but DNA cannot?
Because mRNA is a single stranded molecule where as DNA forms a double helix. Therefore mRNA is a smaller molecule than DNA so can leave the nucleus ALSO mRNA has been processed post-translation. This means a 5' cap has been added and a 3' poly(A) tail has been added. This 5' cap, which DNA does not have, allows mRNA to leave the nucleus through nuclear pores. All above is good idea all , And me have something that need to include more. First time DNA can't leave from nucleus ,so DNA change to be nucleotide then mRNA go into nucleus and duplication ,A , T, C, G of DNA to be U,A,G,C. During mRNA get out from nucleus , mRNA will go to ribosomes to produce protein to take care cell.
Can you build another polypeptide chain using the same mRNA?
One mRNA copy can be used to make multiple polypeptides.
If DNA is described as a double helix how should mRNA be described-?
mRNA is like a single strand instead of a double strand. If DNA is like a twisted ladder, then mRNA is like a single half of that ladder, with only half the bases.
What is the shape of mRNA?
mRNA is most commonly linear but can form a duplex double strand just like DNA.
What is the difference between mrna trna and rrna?
These are all terms for types of RNA, or ribonucleic acid. The difference is that mRNA is messenger RNA, tRNA is transfer RNA, and rRNA is ribosomal RNA.
What are the differences between m-RNA and DNA?
DNA: Thymine double helix doesn't leave the nucleus deoxyribose Similarities: Adenine Guanine Cytosine nucleotide inside cell (nucleus) nucleic acid helix mRNA: Uracil Single strand leaves nucleus ribose sugar
Compare and contrast the structure of tRNA and mRNA?
tRNA is transcription and transportation. mRNA is a messenger RNA it helps convert the codes for DNA. They both help to make proteins and peptide bonds.
What are two differences between transcription and DNA replication?
# Transcription is copying a section of DNA (a gene) onto a mRNA molecule. Replication is the copying the entire DNA molecule. # Transcription does not require primer for initiation.DNA replication use primer for initiation. # RNA transcription, mRNA copy of the active stand of DNA helix is made this process is carried by different enzyme & result is a single of mRNA.DNA replication double helix of DNA is duplicated into two identical double helix which are also identical to the mother DNA, this process is carried by specific enzyme
Is RNA single or double strand?
RNA is single stranded. DNA is double stranded. There are many types of RNA including mRNA, tRNA, and rRNA. mRNA and tRNA are involved in protein synthesis and the process of translation. mRNA and tRNA bind to the ribosome and form polypeptides or proteins that are released into the cell.
What kind of strand is the mRNA molecule?
The mRNA molecule encodes the protein product in the cell for translation. It is a double stranded, base-paired, ribonucleic acid that typically encodes a single gene, or protein, product.
What new product is formed at the DNA strand?
RNA does, in contrast to DNA, form short double strand structures on itself, thereby forming so called stem and loop structures.
How many strands of nucleotides make up DNA double helix?
In dna there are 4 strands which join each part of the dna together, these are t and a , and g and c each one of these contains 200-3000 atoms depending on wether it dna or mrna
How do you translate the mRNA code?
Codes for the nuetrons in a basis of natural science when given a double helix structure follwed by a codon enzyme
What is the decoder of mRNA?
There are several things that can be classified as the decoder of mRNA. They include ribonucleotides, uramine, cytosine and more. This mRNA is decoded into a polypeptide chain.
