Do bacteria have genes for genetic exchange? The idea that the bacterial processes that cause genetic exchange exist because of natural selection for this process is shared by almost all microbiologists and population geneticists. However, this assumption has been perpetuated by generations of biology,...
Are autosomal genes on the same chromosome? Can somatic cells have a different number of chromosomes? Do all organisms have the same number of chromosomes? Do unreplicated and replicated chromosomes count for the same amount? What is the difference between chromosomes and genes? Are the X and...
“We have foun d that ALK acts in our brains an d what it does allows our body to burn more calories per same foo d we eat."So the brain tells fat cells to burn more of the fat they have socke d away.“People, mice, an d we believe also flies, stay skinny. So this ...
Are gametes cells genetically identical to somatic cells? Is an autosomal cell the same as a somatic cell? Do all chromosomes have the same DNA? Are all DNA different? Do identical twins have the same DNA structure? Are human genes distributed uniformly in the genome?
To the Editor: Last month's Nature Methods Editorial ( 'Genes—to have and to hold' ) perpetuates mistaken assumptions about the operation of the patent system and stirs up unfounded fears about the impact of patents on genetic research. The editors concede that there has not been a single ...
How do Hox transcription factors find their target genes in the nucleus of living cells? Homeotic mutations first found in Drosophila led to the identification of Hox genes in all bilateria. These genes are exceptional in that they are arranged... Gehring,J Walter - 《Biologie Aujourdhui》 被...
doi:10.1002/scin.2008.5591741020PatrickBarryWileyScience News
These organelles originated more than a billion years ago as single-celled organisms that were swallowed by larger cells. Since then the mitochondrial genome has shrunk, with many genes migrating to the cell nucleus. But that makes it all the more puzzling that mitochondria have retained any ...
“Musical Chair” modelSir2Upstream Activating Factors (UAF)Copy number regulationTo supply abundant ribosomes, multiple copies of ribosomal RNA genes (rDNA) are conserved from bacterial to human cells. In eukaryotic genomes, clusters of tandemly repeated rDNA units are present,......
Question: How many chromosomes do onions have? Answer and Explanation: Learn more about this topic: Comparative Genomics: Chromosome Number from Chapter 7/ Lesson 3 5.5K In comparative genomics, the number of chromosomes is examined to see the genes that are passed down in different organisms. ...