-
RNA is single-stranded in structure. Ribonucleic acid (abbreviated as RNA, i.e., ribonucleic acid) is a genetic information carrier found in biological cells and some viruses and viroids. RNA is made up of ribonucleotides condensed by phosphodiester bonds to grow into chains.
A ribonucleotide molecule is made up of phosphoric acid, ribose sugar, and bases. There are 4 main bases of RNA, namely A (adenine), G (guanine), C (cytosine), and U (uracil), among which, U (uracil) replaces T in DNA. The role of ribonucleic acid in the body is mainly to guide the synthesis of proteins.
-
Single-stranded RNA is reverse transcribed into DNA (a strand of DNA synthesized from RNA as template and free deoxynucleotides as raw materials, and this strand is copied into DNA) DNA is transcribed into mRNA and then translated into protein (central law).
-
RNA is single-stranded in structure.
The reverse transcription process is to first use RNA as a template to synthesize RNA DNA hybrid double strands, then hydrolyze the RNA strands, and then use the remaining DNA single strands as a template to synthesize DNA double strands.
-
The vastness of space is full of bizarre imaginations and secrets waiting to be discovered. Astronaut, in the sense of word creation, refers to a person who sails to the stars. The original title of the movie "Interstellar Exploration" "Ad Astra" also contains this layer of poetry.
-
Forehead. Add to the upstairs.
RNA can be double-stranded
It's just that most of them are single-chained.
-
RNA is the genetic material of certain viruses such as HIV, influenza virus, etc. Genetic material refers to the material that transmits genetic information between parents and offspring. With the exception of some viruses, the genetic material of the rest of the viruses and all organisms with typical cellular structures is DNA.
Because the vast majority of organisms contain DNA, the genes that control traits are in the DNA, and each cell of each organism contains a constant amount of DNA, which is very important for its inheritance responsibility, while the amount of RNA is uncertain.
When RNA exists independently, it is genetic material; When RNA and DNA are present at the same time, the genetic material of RNA is obscured and DNA acts as the genetic material.
Moreover, the genetic material of cellular organisms is all DNA, and only a few viruses have RNA genetic material, such as HIV virus, SARS virus, etc.
Conclusion: The genetic material of the vast majority of organisms (cellular structure organisms and DNA viruses) is DNA, so DNA is the main genetic material.
-
Genetic material is the material that transmits genetic information between parents and offspring. With the exception of some viruses, the genetic material of the remaining viruses and all organisms with typical cellular structures is DNA.
The genetic material of RNA virus is RNA, and the RNA of RNA virus is generally single-stranded and relatively unstable, so RNA virus is very prone to mutation, which leads to the difficulty of antiviral **, and it is often difficult for the drug to be effective for the same type of virus, but not for other types of viruses, so it is more difficult to treat HIV.
In addition, the genetic material RNA of the virus generally has an envelope on the outside to stabilize its structure as much as possible, but RNA viruses do not have a complete cellular structure.
-
The genetic material of organisms that disturb Najan cells is DNA, and some of the genetic material of viruses is RNA, such as the new coronavirus and HIV virus. But in fact, most viruses have DNA, and some of them are proteins, such as prions.
-
The genetic companion material can be RNA. But Lu Youshou is only a part of the viral organisms, and the genetic material is RNA.
The genetic material of all cellular organisms and most viral organisms is DNA, not RNA.
-
The definition of genetic material reads like this:
Genetic material is the material that transmits genetic information between parents and offspring. Except for a part of the virus, the genetic material of aloe is RNAThe genetic material of the rest of the viruses, as well as all organisms with a typical cell-specific structure, is DNA.
-
Nucleic acids are the genetic material of organisms, the genetic material of the vast majority of organisms is DNA, and the genetic material of a few viruses is RNA
-
RNA is the genetic material of a part of the virus, and DNA is the main genetic material.
-
In the course of life continuity, the main component of a genetic material is the genetic material of a virus.
Since classical molecular biology theories are based on the study of prokaryotes, new problems arise when people apply traditional concepts to higher organisms, such as mammals. For example, in higher organisms, despite the totipotency of germ cells, the gene expression profiles of different types of cells are often very different during ontogeny, and cell fate also undergoes significant differentiation. Importantly, cell differentiation events are heritable until the completion of development, and cells of the same type form form various tissues that perform independent functions. >>>More
I'll give you four words, and you'll know.
The genetic material of all living things is nucleic acids (DNA and RNA)2 only DNA is the genetic material of living organisms: DNA (e.g., eukaryotes, prokaryotes, DNA viruses). >>>More
Because 15N has 1 more molecular weight than 14N, there are now 1000 base pairs in the DNA molecule, note that it is a base pair, that is to say, there are 1000 bases on a chain, and you must pay attention to the unit in this question. Therefore, the molecular weight of the bases in the newly synthesized daughter chain is 1000 less than the molecular weight of the original bases that were all labeled with 15N. Since DNA is semi-retained replication characteristics, reproduction 4 times is replication 4 times, and the final total number of DNA molecules is 16. >>>More
No, it's all DNA. The genetic material of eukaryotes is DNA (e.g., yeast), prokaryotes (e.g., bacteria), but viruses can be DNA (e.g., AIDS) or RNA (tobacco mosaic virus) or proteins (paravirus), but viruses are not eukaryotes. Nor is it a prokaryotic organism.
Eukaryotes. The genetic material is the chromosomes, the prokaryotes. >>>More