Cyanobacteria have only DNA, and yeasts have both DNA and RNA

1. As long as there is a cellular structure, the organism is not a prokaryotic organism.

Or eukaryotic cells have both DNA and RNA.

So cyanobacteria.

and yeast have both DNA and RNA.

2. The structure of the virus is very simple, only protein and nucleic acid are composed, there is no cell structure, and only one of the two nucleic acids, DNA and RNA, can appear. Viruses that only have DNA are called DNA viruses, and only one is learned in high school: bacteriophages.

RNA-only viruses are called RNA viruses, and a lot is learned in high school: HIV, influenza virus, tobacco mosaic virus, etc.

1.Which biology teacher explained it very well2Viruses have no cellular structure, and only have one kind of genetic material DNA or RNA, DNA viruses (viruses can only survive in host cells) such as bacteriophages, in the infection of E. coli is to reverse transcription of its own DNA material to form RNA, and then transcribed and translated, so phage enzyme RNA

Bacteria have a cellular structure, everything that has a cellular structure has DNA and RNA, all viruses have no cellular structure, there can only be one nucleic acid, of course, there is also a prion that does not contain nucleic acid, it is a protein.

If there is DNA in the nucleus, there must be RNA in the cytoplasm; Viruses are divided into DNA viruses and RNA viruses, but a virus will only have one nucleotide.

Hello dear, according to the question you raised, what is the genetic material of bacteria, we know that except for viruses, the genetic material of all organisms is deoxyribonucleic acid, that is, DNA, and viruses are relatively special living organisms, some of their genetic material is deoxyribonucleic acid (DNA), such as bacteriophages, and some genetic material is ribonucleic acid (RNA), such as HIV. And what you asked about is that on one page, you see that the genetic material of bacteria is DNA, and on the other page, you see that it is RNA, it may be that you have not mistaken the virus for bacteria, you can check the book friend again to see if it is a mistake.

Dear, I hope my socks are helpful to you, I wish you a happy life, if I am satisfied with you, you give 5 stars praise, thank you.

Answer]: The three major types of microorganisms and their characteristics are: Non-cellular microorganisms are the smallest in size, with nanometers (nm) as the unit of measurement, the simplest structure, containing only one nucleic acid RNA or DNA, or only infectious protein particles, with super parasiticism, can only replicate in living susceptible cells, and are prone to mutation of the lowest organisms, including viruses, prions, etc.; Prokaryotic cellular microorganisms are single-celled microorganisms, the size is measured in microns (m), their cell differentiation is imperfect, there is no complete nucleus and nuclear membrane, nucleolus, nucleoplasm or nucleoplasm is composed of double-stranded helix structure DNA and RNA accumulated in the cytoplasm, there are ribosomes in the cytoplasm, but there are no organelles such as endoplasmic reticulum fibers and mitochondria.

Such microorganisms include 6 categories, including bacteria, mycoplasma, chlamydia, rickettsia, spirochetes and actinomycetes; Eukaryotic cell-type microorganisms are multicellular or unicellular microorganisms (fungi) with well-differentiated cells, nuclei and various organelles, and are easy to grow and multiply in vitro.

The double helix is structurally more stable, and genetic stability is guaranteed by semi-preserved replication. Therefore, the organisms that reproduce through self-osmosis are burned with DNA as the genetic material.

2.Many viruses use RNA as genetic material, which should be because the virus must infect the cell and reverse transcribe the encoded DNA to achieve its own reproduction, and because RNA is easier to mutate, making the virus less likely to be destroyed by the host cell, it is advantageous to say that the virus uses RNA as the genetic material.

3.Bacteria cannot infect other cells to achieve their own reproduction, and too many mutations are usually detrimental to a species, so bacteria must use DNA as genetic material.

Summary. No, rRNA is not cyanobacterial genetic material. RNA is a very important nucleic acid that can be involved in protein synthesis within the cell, but it is not a cyanobacterial genetic material.

Cyanobacterial genetic material refers to the DNA of cyanobacteria, which is the genome of cyanobacteria and contains the genetic information of cyanobacteria. The DNA of cyanobacteria can be amplified by PCR technology to obtain the genetic material of cyanobacteria. In addition, cloning techniques can be used to obtain the genetic material of cyanobacteria, allowing the study of the genetic characteristics of cyanobacteria.

No, rRNA is not cyanobacterial genetic material. RNA is a very important nucleic acid that can be involved in protein synthesis within the cell, but it is not a cyanobacterial genetic material. Cyanobacterial genetic material refers to the DNA of cyanobacteria, which is the genome of cyanobacteria and contains the genetic information of cyanobacteria.

The DNA of cyanobacteria can be amplified by PCR technology, so as to obtain the genetic material of cyanobacteria. In addition, Xiangyan virtual cloning technology can also be used to obtain the relict burning material of cyanobacteria, so as to study the genetic characteristics of cyanobacteria.

I'm sorry I don't understand, but can you elaborate on that?

No, RNA is not cyanobacterial genetic material. The genetic hail material of cyanobacteria is DNA, which is a double helix structure composed of base pairs, which is the carrier of genetic information of cyanobacteria. RNA is a single-stranded structure, which is a carrier for protein synthesis and an important substance for regulating gene expression.

The role of RNA in cyanobacteria is transcription and translation, and it can take information from the DNA first band and convert it into proteins. Both DNA and RNA of cyanobacteria can be used in genomics studies to study the genetic structure and function of cyanobacteria, as well as the evolutionary history of cyanobacteria. In addition, RNA can also be used to study the regulatory mechanism of cyanobacteria, as well as the pathogens and antimicrobial resistance of cyanobacteria.

This counter-example cannot be cited because all bacteria have both DNA and RNA. There are no exceptions.

Bacteria are cellular organisms. All cellular organisms take DNA as their genetic material and are carriers of genetic information, so all bacteria have DNA.

RNA is a substance necessary for the life activities of cellular organisms. As a bridge between genetic information and proteins and all life activities, all cellular organisms must have RNA, such as ribosomal RNA

rRNA), messenger RNA

mRNA), transfer RNA

Transshipment RNA) (tRNA), etc., are indispensable. So all bacteria have RNA.

Answer] D Answer Analysis] Test Question Analysis: Viruses have no cell structure, cyanobacteria belong to prokaryotes, and yeasts belong to eukaryotes. So the material or structure that viruses, cyanobacteria, and yeast all have is genetic material – nucleic acids.

Test Place: Structure and function of cells.