No, DNA is not a plant or animal cell. DNA stands for deoxyribonucleic acid, and is the hereditary material in humans and almost all other organisms. DNA is composed of a molecule that carries the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses.
DNA is located in the cell’s nucleus and is a double-stranded molecule with chemical code made up of four nucleotides: adenine (A), thymine (T), cytosine (C) and guanine (G). These nucleotides are arranged in a twisted ladder-like structure known as a double helix.
This helix can separate into two strands, which then act as templates for the duplication of new DNA strands. Therefore, DNA is not a plant or animal cell, but rather is the genetic material of both plants and animals.
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Is DNA found in plants?
Yes, DNA is found in plants. All living things contain DNA, including plants. Plants carry a variety of genetic information encoded in their DNA, just like humans and animals. DNA plays a huge role in determining the structure and function of plants.
It affects growth, photosynthesis efficiency, toxin production, disease resistance and susceptibility to climate change, among other factors. Plants contain a number of specialized plastids such as chloroplasts, a type of organelle found in plant cells that converts the energy of sunlight into chemical energy in the form of glucose.
DNA is organized inside chloroplasts, which house genetic material that is unique to each plant species. DNA also helps to determine the proteins produced by chloroplasts, which helps regulate the plant’s growth and development.
Which cell has a DNA?
All cells come equipped with a full set of genetic instructions stored as DNA. Each cell contains a nucleus, which houses the chromosomes and genetic material. Within the nucleus, the strands of DNA are coiled around structural proteins and tightly bound.
DNA contains all the information necessary to build and maintain an organism. Each strand of DNA contains the instructions, or genes, to control the development, growth, and functioning of the organism.
Not only do cells contain genetic material in the form of DNA, but they also contain genes that instruct proteins how to form, how to react to other proteins and molecules, and how to affect overall cellular functioning.
Every single cell contains its own unique set of DNA, ensuring that no two cells are alike and that each one has a distinct set of genetic instructions.
Do all cells have a DNA?
No, not all cells have DNA. DNA is the hereditary material that is found in the nucleus of most of our cells in the human body. However, several types of cells, such as mature red blood cells and some types of bacteria, do not have any DNA.
Additionally, many organelles including mitochondria and chloroplasts also lack DNA. In the case of red blood cells, the nucleus is lost during their maturation process. In the case of bacteria, their DNA is contained in a single circular chromosome, which is not contained within a nucleus; instead, the chromosome is found floating in the cytoplasm of the bacterial cell.
As for the organelles, they have their own specialized DNA sequences that are contained in the circular DNA structures within the organelles.
Which is not in a plant cell *?
The answer is none of the choices provided. Plant cells contain many specialized organelles such as the cell wall, plastids, vacuoles, and the Golgi body. However, they lack structures found in animal cells, such as centrioles, lysosomes, and cilia.
Therefore, none of the choices are found in a plant cell.
Does RNA exist in nature?
Yes, RNA is found in nature and is present within all organisms. It is an essential component of life and plays a critical role in the transmission of genetic information from DNA to proteins. RNA is a polynucleotide that is single-stranded and consists of ribonucleotides, the building blocks of RNA.
RNA carries out various key roles within a cell including: transcription, RNA editing, translation and riboregulation. It is also crucial for regulating gene expression, so that each cell within an organism can carry out specific activities.
RNA is found in various landscapes within the cytoplasm and nucleus of a cell and exists in three main forms: messenger RNA (mRNA), transfer RNA (tRNA) and ribosomal RNA (rRNA). mRNA carries the coding part of the genetic information, while tRNA acts as an adaptor molecule responsible for adding amino acids during the translation process.
Finally, rRNA is a structural component of the ribosome, which is the site of protein synthesis.
Which plant virus has RNA?
Many plant viruses have RNA as their genetic material, which makes them what is known as “RNA viruses”. Some examples of common plant viruses that have RNA are Cucumber Mosaic Virus, Potato Virus Y, Potato Leaf Roll Virus, Tobacco Mosaic Virus, and Cauliflower Mosaic Virus – all of which can infect different types of plants.
These RNA viruses can cause a range of effects in plants, from stunting of growth and discoloration of leaves, to total destruction of the plant and in some cases, death. Other RNA viruses in plants may cause specific symptoms such as knots and distortions on fruits and vegetables, or even a decreased yield in crops.
There are also a number of diseases which are associated with RNA viruses, such as Tomato Spotted Wilt Virus and Tobacco Streak Virus which can cause discoloration, wilting and stunting in the plants they infect.
