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First of all a gene by definition codes for something so there is no such thing as a "non coding gene". To your question non-coding DNA is no more prone to mutation. A mutation in a non-coding region is far more likely to passed onto offspring because a mutation has no effect on the organism that gets it. A mutation in a gene is more likely to be bad thing than beneficial. So over time (many generations) there are more differences in non coding regions of DNA between individuals. This why DNA fingerprinting looks at differences in non coding regions between people to find unique profiles.
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Which types of mutation affects more genes a gene mutation or a chromosomal?
a gene is passed on from generations and a chromosome is just found in certain cells
What is a choromosome and how are they related to genes and DNA?
A chromosome is a whole lot of genes strung together. Each gene is made of DNA. To confuse matters further, as well as having lots of genes in every chromosome, there is also a lot of "extra" DNA. This DNA is called "non-coding" DNA and we don't really know what it does yet. In fact there is much more non-coding DNA in every chromosome than genes.
In eukaryotes the noncoding portions of DNA are called what?
You get the entire organism from the single fertilized cell. There should be no doubt that this process is conducted by your genes only. So all the cells of your body are made in very particular order by your genes only. After the individual is formed, the functions of the most of the genes is over. You can easily check the function of the particular gene by sacking the same in zygote. The very important genes, which are involved in primary steps, will create the serious disorders in that particular animal. In such case the animal may not even survive. He may not have some important organ or system like liver or cardiovascular system or respiratory system. Step by step the function of the gene becomes less and less important, but then that is enough to cause some disorder like mucoviscidosis or poly-cystic kidney disease, in the patient, with slight variation. There are more than enough permutations and combinations, to produce all types of cells in the body of all the organisms on the earth, past, present and future. That is why 98 % genes in humans are noncoding. Some people call these sections "junk DNA" but more research has shown that they can play a significant role in controlling cell development.
What is a mutation of a single gene?
by what protocol we can mutate a single gene from leishmania BY ANOTHER PERSON - The answer is POINT mutation. I'm doing the worksheet too LOL hahah everyone is doing miggis homework huh === Too bad I can't find the rest of the answers for that homework D: But yea it is Point Some genetic disorders result when a mutation causes the product of a single gene to be altered or missing. ~From my science book o-o lol
How do eukaryotic cells make more cells?
Cell can make more cells via two processes. The first is called mitosis: a process which creates two identical cells. Both eukaryotic and prokaryotic cells can undergo mitosis. The second is meiosis: a process which produces reproductive cells in sexually reproducing eukaryotes. When a cell becomes cancerous, one or more mechanisms in the cell that control mitosis breaks down. This occurs due to a mutation in the cell's DNA. The genes in which a cancer-causing mutation can occur are either called proto-oncogenes or tumour suppressor genes. When such a mutation occurs in a proto-oncogene they become activated and become oncogenes. The product of oncogenes promote uncontrolled mitosis, hence the name onco(cancer)-gene. Again, as the name suggests, tumour suppressor genes have some role in suppressing cancer. Tumour suppressor genes are regulators of mitosis. When a cancer causing mutation occurs in a tumour suppressor gene, the product of the gene becomes disfunctional or are not produced altogether.
Which types of mutation affects more genes a gene mutation or a chromosomal?
a gene is passed on from generations and a chromosome is just found in certain cells
Describe what genes are and explain what makes a disease genetic?
genes are what make up your DNA. each gene has two alleles, and whether those alleles are dominant or recessive determines what trait you get. Every trait has at least on gene coding for it, and some have more. a disease is genetic when there is a gene coding for it, as opposed to just a mutation or something environmental causing it.
Would a point mutation or a frame shift mutation more likely produce a neutral mutation?
A point shift mutation is more likely to produce a neutral reaction. This is because it involves a change in one nucleotide. A frame shift mutation is more deleterious because it involves the insertion or deletion of multiple base pairs within a gene's coding sequence.
Are permanent alterations in a cell's DNA that affect the nucleotide sequence of one or more genes?
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Do chromosomes have the same or different genes?
There are many more genes than chromosomes. The Human Genome Project currently has identified about 20,000 protein-coding genes, while there are only 46 chromosomes in the human genome.
What is a choromosome and how are they related to genes and DNA?
A chromosome is a whole lot of genes strung together. Each gene is made of DNA. To confuse matters further, as well as having lots of genes in every chromosome, there is also a lot of "extra" DNA. This DNA is called "non-coding" DNA and we don't really know what it does yet. In fact there is much more non-coding DNA in every chromosome than genes.
Do humans have fewer or more proteins in their body than protein coding regions?
Number of proteins produced is of course more than the number of coding regions/genes/mRNAs. This is because of biological processes like alternate splicing and other post translational changes.
Which causes more variation within a population from generation to generation mutation or sexual recombination and Why?
Sexual recombination only takes genes already extant and make new combinations. Mutation presents a brand new variation ( if not neutral or deleterious ) to the eye of natural selection. So, mutation, from generation to generation.
What name is given to the patterns of DNA?
In coding DNA, that of genes, three nucleotide 'codons' signal for one amino acid. Many amino acids are signaled for by more than one codon. Another answer might be that eukaryotic genes, like yours and mine, is composed of coding 'exons' and non-coding 'introns'. The rest of the DNA is not expressed but may contain signal sequences for recruiting transcription enzymes and chromatin (DNA-associated proteins).
Can mutation allow a virus to cross into a new species?
Rather more easily than mutations in your genome! A virus which may have only a few hundred genes can have large changes in function from just one mutation and can be then accounted a new "species " as progeny inherit the mutation. ( as much as one counts viruses as species )
In eukaryotes the noncoding portions of DNA are called what?
You get the entire organism from the single fertilized cell. There should be no doubt that this process is conducted by your genes only. So all the cells of your body are made in very particular order by your genes only. After the individual is formed, the functions of the most of the genes is over. You can easily check the function of the particular gene by sacking the same in zygote. The very important genes, which are involved in primary steps, will create the serious disorders in that particular animal. In such case the animal may not even survive. He may not have some important organ or system like liver or cardiovascular system or respiratory system. Step by step the function of the gene becomes less and less important, but then that is enough to cause some disorder like mucoviscidosis or poly-cystic kidney disease, in the patient, with slight variation. There are more than enough permutations and combinations, to produce all types of cells in the body of all the organisms on the earth, past, present and future. That is why 98 % genes in humans are noncoding. Some people call these sections "junk DNA" but more research has shown that they can play a significant role in controlling cell development.
Is mutation a selective pressure?
Mutation is not a selective pressure, however, an organism with (certain) genes that are more likely to mutate are going to provide a higher variation within the gene pool which is advantageous. Organisms such as viruses have a high rate of mutation in certain genes (such as those which code for membrane surface proteins) which is advantageous but mutation can be disadvantageous and it is much more likely to be a problem than an advatage. Only beneficial mutations are selected for and so persist within the gene pool, mutation itself is more often disadvageous.
