is dna same in every cell?
178964
Nearly every cell in a person's body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
1197051
The outcome of DNA replication is two DNA nearly identical DNA double helix molecules. Each DNA is made up of one DNA strand from the original DNA and a newly created strand. There are two differences between human DNA and bacterial DNA.
110258
Briefly explain why the daughter cells resulting from mitosis are genetically identical to each other and to the original cell. ... The cells are identical because the DNA is copied during the S phase before cell division and then each resulting cell gets a matching copy of the chromosomes. Page 2. 4.
152800
No, gene is not bigger than DNA… Chromosomes found in the nucleus of the cell that contain dna stretches called as genes. A human cell contains approx. 30,000 genes. Traits which are inherited are determined by one or many genes and single gene can express more than one trait.
159462
The cell has multiple mechanisms to ensure the accuracy of DNA replication. ... DNA is double-stranded. The strands split apart and serve as templates for new copies. Every time a stem cell replicates its DNA and splits into two cells, the cell that remains a stem cell will keep the same strand of DNA.
656184
There are two types of DNA in the cell – autosomal DNA and mitochondrial DNA. Autosomal DNA (also called nuclear DNA) is packaged into 22 paired chromosomes. In each pair of autosomes, one was inherited from the mother and one was inherited from the father.
838912
Like all cells in the human body, stem cells all share a few common structures. These include: ... A nucleus, which contains all the cell's genetic information stored as DNA.
506310
There's as many atoms in a single molecule of your DNA as there are stars in the typical galaxy. We are, each of us, a little universe.
893013
The chromosomes and genes are made of DNA, which is short for deoxyribonucleic (say: dee-ox-see-ri-bo-nyoo-CLAY-ik) acid. Most cells have one nucleus (say: NOO-clee-us). The nucleus is a small egg-shaped structure inside the cell which acts like the brain of the cell.
235829
As a cell prepares to divide, its chromosomes bunch up as the DNA within copies itself. Then the chromosomes split in two. The two new cells that form are identical to the original cell, complete with forty-six chromosomes and the same DNA information.
600701
 Yes! The exact DNA sequence is duplicated/replicated during DNA synthesis so the sister chromatids are exact copies of each other for every single nucleotide. ... Homologous chromosomes have the same genes BUT remember those genes could be different alleles which are coded for by slightly different nucleotide sequences.
220947
Nuclear DNA is known as the molecule of life and contains the genetic instructions for the development of all living organisms. It is found in almost every cell in the human body, with exceptions such as red blood cells. Everyone has a unique genetic blueprint, even identical twins.
383766
3 Answers. To quickly answer your question, yes DNA changes over the life time of many organisms including humans. ... Most of these cells can and will divide over time (mitosis) to produce new cells with copies of that DNA. However, there are also plenty of cells that don't divide often or at all in healthy adults.
1004144
The repeating, or monomer, units that are linked together to form nucleic acids are known as nucleotides. The deoxyribonucleic acid (DNA) of a typical mammalian cell contains about 3 × 10 9 nucleotides.
1434112
DNA is the genetic material found in all living organisms and is found in the nucleus of eukaryotes and in the chloroplasts and mitochondria. In prokaryotes, the DNA is not enclosed in a membranous envelope. The other type of nucleic acid, RNA, is mostly involved in protein synthesis.
1327602
Simply put, sister chromatids are two copies of the exact same chromosome and they have the exact same DNA . ... Homologous chromosomes, on the other hand, are the same chromosomes from different cells that may or may not have different DNA. For example, your chromosome 13 and my chromosome 13 are homologous.
1135789
DNA. DNA is the molecule that is the hereditary material in all living cells. Genes are made of DNA, and so is the genome itself. A gene consists of enough DNA to code for one protein, and a genome is simply the sum total of an organism's DNA.