Cells have ribosomal RNA (rRNA), messenger RNA (mRNA), and transfer RNA (tRNA).
Not all cells have a nucleus. Also nuclei is plural many cells only have one nucleus. Generally cells that have a nucleus have DNA in it. It is suspected that originally the nucleus of cells had RNA instead of DNA and it is suspected that some cells still have RNA in their nucleus. A number of viruses use RNA instead of DNA.
RNA is found in both plant and animal cells. It has three forms - mRNA, tRNA and rRNA - which are all involved in the process of protein synthesis.
In animal cells, RNA is primarily located in the nucleus where transcription occurs, producing messenger RNA (mRNA) that carries genetic information to the cytoplasm for translation. In plant cells, RNA is also found in the nucleus for transcription, but it can also be found in other organelles like chloroplasts and mitochondria where specialized RNA molecules are produced for their functions.
RNA
RNA, ribosmes
In prokaryotic cells, DNA and RNA are both found in the cytoplasm. In eukaryotic cells, DNA is typically restricted to the nucleus and RNA is mostly in the cytoplasm.
Ribosomes are RNA and protein complexes found in all cells. They are responsible for protein synthesis by translating messenger RNA (mRNA) into proteins.
Prokaryotic cells typically have a single molecule of DNA in a closed loop floating free in a region of the cytoplasm called the nucleoid. Many species of prokaryotes also contain DNA in tiny ringlets known as plasmids in the cytoplasm. Eukaryotic cells are typically about ten times larger than prokaryotic cells and have a nucleus containing numerous strands of DNA. DNA: nucleus RNA:cytoplasm
Not all cells have a nucleus. Also nuclei is plural many cells only have one nucleus. Generally cells that have a nucleus have DNA in it. It is suspected that originally the nucleus of cells had RNA instead of DNA and it is suspected that some cells still have RNA in their nucleus. A number of viruses use RNA instead of DNA.
ribosomes
ribosomes
ribosomes
There are different types of RNA that have different functions. Ribosomal RNA (rRNA) makes ribosomes, the site of protein synthesis; messenger RNA (mRNA) transcribes the DNA code into a strand of mRNA and will attach to a ribosome where transfer RNA (tRNA) translates the mRNA code by bringing amino acids to their appropriate place based on the mRNA code.
RNA is found in both plant and animal cells. It has three forms - mRNA, tRNA and rRNA - which are all involved in the process of protein synthesis.
In animal cells, RNA is primarily located in the nucleus where transcription occurs, producing messenger RNA (mRNA) that carries genetic information to the cytoplasm for translation. In plant cells, RNA is also found in the nucleus for transcription, but it can also be found in other organelles like chloroplasts and mitochondria where specialized RNA molecules are produced for their functions.
RNA has been found in a panoply of human body fluids: blood, urine, have since discovered this type of RNA silencing in many orginisms.
The sugar found in RNA is ribose, while the sugar found in DNA is deoxyribose.