Ribonucleic Acid Collection (page 6)

SARS coronavirus, artwork C016 / 3054
SARS coronavirus proteins. Cutaway computer model showing the protein structure of a SARS coronavirus particle (virion). SARS (severe acute respiratory syndrome)

SARS coronavirus, artwork C016 / 3053
SARS coronavirus proteins. Cutaway computer model showing the protein structure of a SARS coronavirus particle (virion). SARS (severe acute respiratory syndrome)

SARS coronavirus proteins, artwork C016 / 3052
SARS coronavirus proteins. Computer model showing the proteins of a SARS coronavirus particle (virion). SARS (severe acute respiratory syndrome)

Ribozyme enzyme and RNA C016 / 2829
Ribozyme enzyme and RNA, molecular model. Ribozymes are RNA (ribonucleic acid) molecules that catalyse certain biochemical reactions

Ribozyme enzyme and RNA C016 / 2828
Ribozyme enzyme and RNA, molecular model. Ribozymes are RNA (ribonucleic acid) molecules that catalyse certain biochemical reactions

RNA-silencing protein with RNA C016 / 2558
RNA-silencing protein with RNA. Molecular model of RNA silencing taking place by human piwi-like protein (purple) acting on short loops (green) of RNA (ribonucleic acid)

RNA-silencing protein with RNA C016 / 2557
RNA-silencing protein with RNA. Molecular model of RNA silencing taking place by human piwi-like protein (green) acting on short loops (red) of RNA (ribonucleic acid)

RNA polymerase molecule C016 / 2391
RNA polymerase. Molecular model of RNA polymerase (blue and purple) transcribing a strand of mRNA (messenger ribonucleic acid, centre) from a DNA (deoxyribonucleic acid) template (pink and purple)

RNA polymerase molecule C016 / 2390
RNA polymerase. Molecular model of RNA polymerase (beige and pink) transcribing a strand of mRNA (messenger ribonucleic acid, centre) from a DNA (deoxyribonucleic acid) template (pink and purple)

Avian influenza virus, TEM C016 / 2354
Avian influenza virus, type A strain H7N9, coloured transmission electron micrograph (TEM). This virus first emerged in the human population in China, in March 2013

Avian influenza virus, TEM C016 / 2353
Avian influenza virus, type A strain H7N9, coloured transmission electron micrograph (TEM). This virus first emerged in the human population in China, in March 2013

Avian influenza virus, TEM C016 / 2352
Avian influenza virus, type A strain H7N9, coloured transmission electron micrograph (TEM). This virus first emerged in the human population in China, in March 2013

Avian influenza virus, TEM C016 / 2351
Avian influenza virus, type A strain H7N9, coloured transmission electron micrograph (TEM). This virus first emerged in the human population in China, in March 2013

Ribonuclease with RNA DNA hybrid
Ribonuclease with RNA/DNA hybrid. Molecular model of Ribonuclease H (RNAse H, yellow and green) complexed with an RNA (ribonucleic acid, purple) and DNA (deoxyribonucleic acid, pink) hybrid

RNA polymerase molecule C013 / 9005
RNA polymerase. Molecular model of RNA polymerase (yellow) transcribing a strand of mRNA (messenger ribonucleic acid, pink) from a DNA (deoxyribonucleic acid) template (orange and turquoise)

Bird flu virus particle, artwork C013 / 4650
Bird flu virus particle. Computer artwork showing the internal and external structures of an influenza (flu) A subtype H5N1 (bird flu) virus particle (virion)

Paramyxovirus particles, artwork C013 / 4638
Paramyxovirus particles. Computer artwork of a paramyxovirus particles (virions). This family of RNA (ribonucleic acid) viruses is responsible for a number of human and animal diseases

Paramyxovirus particles, artwork C013 / 4639
Paramyxovirus particles. Computer artwork of a paramyxovirus particles (virions). This family of RNA (ribonucleic acid) viruses is responsible for a number of human and animal diseases

Measles virus particle, artwork C013 / 4635
Measles virus particle. Cutaway computer artwork showing the internal and external structure of a measles (Morbillivirus sp.) virus particle (virion)

Influenza virus particle, artwork
Hepatitis C virus. Computer artwork of a hepatitis C virus particle (virions). The virus consists of a core of RNA (ribonucleic acid) enclosed in a capsid

Influenza virus particle, artwork C013 / 4627
Influenza virus particle. Cutaway computer artwork showing the internal and external structure of an influenza (flu) virus particle (virion)

Hepatitis C virus, artwork
Hepatitis C virus. Computer artwork of hepatitis C virus particles (virions) in the human body. The virus consists of a core of RNA (ribonucleic acid) enclosed in a capsid

Unstressed cells (Image 1 of 2). Immunofluorescent light micrograph of unstressed kidney cells. The nuclei contain the RNA (ribonucleic acid)-binding protein TIA (blue) and DNA (deoxyribonucleic acid)

Quantum dot probe, artwork
Quantum dot probe. Computer artwork of a quantum dot, a nanocrystal (InAs crystal, orange) that can be used to probe the immune system

Retrovirus, computer artwork. Retroviruses have RNA (Ribonucleic acid) as their genetic material instead of DNA (Deoxyribonucleic acid)

Cucumber necrosis virus, computer model
Cucumber necrosis virus (CNV), computer model. This image was created using molecular modelling software and data from cryo-electron microscopy

Sperm fertilising an egg, artwork
Sperm fertilising an egg. Cutaway artwork of a human sperm cell (spermatozoon) penetrating an egg cells (ovum) thick outer layer (zona pellucida). The egg cells membrane is at top right

Paramyxovirus particle, TEM
Paramyxovirus. Transmission electron micrograph (TEM) of a paramyxovirus particle. The internal structure of the virus has been revealed

Dengue fever virus replication, TEM

Mosaic plant viruses, TEM
Turnip yellow mosaic viruses. Coloured transmission electron micrograph (TEM) of turnip yellow mosaic viruses (TYMV). This virus infects crucifer plants such as turnip, swede and cauliflower

Avian influenza virus, TEM
Avian influenza virus, type A strain H5N1, coloured transmission electron micrograph (TEM). This virus was isolated in Vietnam, during the avian flu outbreak in early 2004

Influenza viruses. Coloured transmission electron micrograph (TEM) of influenza (flu) viruses. The flu virus belongs to the orthomyxovirus group of viruses which have an affinity for mucus

Paramyxovirus, TEM
Paramyxovirus. Transmission electron micrograph (TEM) of paramyxovirus ribonuclear protein helices (red strands). These helices contain the viral genetic material, ribonucleic acid (RNA)

Genetic translation, computer diagram. This process uses genetic information to direct the synthesis of proteins. The main molecules involved are two types of RNA (ribonucleic acid)

Zinc finger-RNA complex. Computer models of zinc finger protein molecules complexed with RNA (ribonucleic acid) molecules

Ribosomal RNA, molecular model. Ribosomal RNA (rRNA) is the molecule that translates nucleic acids into proteins. It is found in ribosomes, organelles in cells that perform this function

Transfer RNA molecule. Computer artwork of the double helix of tRNA (transfer ribonucleic acid), formed by spiralling paired strands of sugar phosphates, linked by nucleotide base pairs

Storing genetic material. Researcher removing a tray of vials containing human tissue samples taken from a freezer. The DNA (deoxyribonucleic acid)

Viral RNA replication cycle, artwork
Viral RNA replication cycle. Computer artwork showing the three stages of the replication cycle that forms double-stranded DNA (deoxyribonucleic acid)

RNA interference, computer artwork
RNA interference (RNAi) is a mechanism of gene expression involving double-stranded ribonucleic acid (RNA). Double-stranded RNA (or dsRNA), as is seen here

RNA polymerase II molecule
RNA polymerase II. Computer model showing the secondary structure of the enzyme RNA polymerase II. The molecule comprises 12 subunits

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"Unraveling the Secrets of Ribonucleic Acid: The Double-Stranded RNA Molecule" In the intricate world of molecular biology, ribonucleic acid (RNA) takes center stage as a vital player in various biological processes. This captivating molecule, often overshadowed by its famous cousin DNA, holds immense potential and complexity. DNA transcription sets the stage for RNA's crucial role. As a double-stranded RNA molecule unwinds, it serves as a template to synthesize single-stranded messenger RNA (mRNA), carrying genetic information from the nucleus to the cytoplasm. A mesmerizing molecular model showcases this elegant dance of transcription. Within bacterial ribosomes, another fascinating aspect unfolds. These cellular factories decode mRNA sequences into proteins through translation—a fundamental process that sustains life itself. Peering into their microscopic world reveals an awe-inspiring view of these tiny machines at work. But not all encounters with RNA are beneficial; some bring about disease-causing agents like human respiratory syncytial virus or paramyxovirus particles. Through electron microscopy, we witness their hauntingly beautiful structures—reminders of nature's delicate balance between beauty and danger. Electrophoresis techniques allow scientists to analyze and separate different types of RNAs based on size and charge—an invaluable tool in unraveling their mysteries. Such experiments reveal intriguing patterns under UV light that hint at hidden secrets within these molecules' structure and function. The realm of RNA extends beyond mere replication; it undergoes editing too. Molecular models showcase specialized enzymes responsible for altering specific nucleotides within an RNA sequence—a testament to nature's ingenuity in fine-tuning genetic information. Ribonucleases further highlight the multifaceted nature of RNAs—their ability to degrade both RNA-DNA hybrids and pure forms with precision is truly remarkable. Visualizing this interaction provides insights into how cells regulate gene expression through controlled degradation mechanisms.