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Yes, DNA is necessary for all cells, because it holds the genetic information that the cell needs.
However, some viruses store their information in RNA. Viruses are not large and complicated enough to be classed as cells.
Some scientists believe that RNA was the first substance to store genetic information, and that DNA evolved later.
Wiki User
∙ 15y ago
No, not all cells require DNA. Some cells, such as red blood cells, do not have a nucleus and thus lack DNA. However, for most cells, DNA is essential for storing genetic information and carrying out cellular functions.
Wiki User
∙ 15y agoIn order for something to be considered living it needs DNA. DNA, or deoxyribose nulceotide, is a neulic acid that is the blueprint for mRNA, messenger RNA, which codes for amino acids. The expression or coding of these amino acids is known as gene expression. Genes don't just give you physical appearence, they controll everything. If cells did not have DNA they would just just exist as a sac of organelles that dont carry out their jobs.
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Why is an replication of DNA essential in al cells?
DNA replication is necessary as cells constantly divide.
What is found in all cells?
Protoplast is found in all cells
What statement is correct regarding the cells and DNA?
all the cells have identical DNA
Is there a cell in humans that don't have DNA?
No. Not all cells have a nucleus, which contains nuclear DNA; but all cells have mitochondria, which have their own DNA, called mitochondrial DNA, or mDNA. In humans, the cells that lack a nucleus and therefore nuclear DNA, are mature red blood cells, but they do have mitochondria and mitochondrial DNA.
When and why does DNA need to be replicated?
When cells divide, the new cells produced must have a full set of genes in order to function correctly. Genes are made of DNA so it is necessary to replicate (copy) the DNA before the cell divides.
When does the cell need to copy the DNA-?
DNA ultimately controls all the cell's functions, so it is necessary to have it in all your cells. Every time your cells divide so that you can grow or repair your body, the DNA needs to duplicate so that it can be in each of your cells.
Why is an replication of DNA essential in al cells?
DNA replication is necessary as cells constantly divide.
Would you expect to find DNA in all cells and tissue?
Yes, all cells contain DNA because it is necessary for life. DNA codes the RNA which makes the proteins that determine essentially ever characteristic of an organism and the parts of the cell. Tissues are made of cells, so the individual cells contain DNA. Note: in prokaryotic cells, the DNA is not contained in the nucleus, but they DO have DNA, it just floats around freely in the cytoplasm.
Why is it necessary the cell copies its DNA?
cells must copy their DNA to replicate
How do haploid cells differ from diploid cells?
Haploid cells only have half the necessary amount of DNA (sex cells). Diploid cells have a full set of DNA (body cells).
Do plants cells contain DNA why or why not?
Yes, plant cells contain DNA. They contain it because DNA is necessary to the cells so that they can carry the instructions to carry out life functions and reproduce.Nucleus and chloroplasts
Why are genes longer than the mRNA that is translated?
Genes contain DNA sequences that not only code for the mRNA that is translated into proteins, but also include non-coding regions such as introns. Introns are removed during mRNA processing, so the final mRNA is shorter than the gene it is transcribed from. Additionally, genes may contain regulatory sequences or other non-coding regions that are not translated into proteins, contributing to their longer length.
What statement is correct regarding the cells and DNA?
all the cells have identical DNA
What types of cells contain RNA and DNA?
Genetic cells
Which cells have DNA as their genetic material?
Haploid cells like sperm cells,ova,bacteria
Why is the nucleus necessary?
The nucleus is necessary because it is the control center of the cell. It contains the hereditary information (DNA) and because of that it controls the reproduction of the cell as well. Not all cells have a nucleus. Cells without a nucleus are called Prokaryotes and they are all unicellular. i hope this was helpful!
Is there DNA in a cell?
Yes, DNA is located in the nucleus of a cell, where it stores genetic information that determines an organism's traits. DNA is organized into chromosomes, which are passed down from one generation to the next during cell division.
