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Genes tell your body how to grow and work. They are passed down from parents to children. Genes control everything in your body. They control things like your eye color and height. Scientists think they might control how well you play sports. This is called your athletic ability. But ...
It all comes down to a process called gene regulation. This is how our genes are turned off and on, for minor things like hair color and vital functions like protection from cancer. Within our bodies, we house trillions of cells, all busily going about doing their jobs while we enjoy our...
However, the mechanism of duplication is important: genes that are part of complex cellular networks are more easily duplicated by whole-genome duplication (WGD) than by small-scale duplication (SSD). In order to have the potential to acquire a new function, a duplicate gene must come under ...
The chromosomes of a cell are in the cell nucleus. They carry genetic information. Each chromosome contains many genes. When they duplicate, chromosomes look like the letter "X".Answer and Explanation: Chromatin is the complex combination of DNA and proteins that helps to package DNA into a ...
Many genes are, indeed, transcribed in minimal amounts of mRNA per cell, which can cause large random fluctuations in biosynthesis. Genomic instability is another important source of inherent random variability, as shown in aged mice, which have a mutation rate of up to 104 per gene per cell...
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This study combines lipidomic and transcriptomic analyses to show that macrophage-derived foam cells are associated with suppression, rather than activation, of inflammatory genes and that most of the changes in gene expression and lipid metabolism are triggered by the accumulation of desmosterol, an ...
What is the noise in autosomal DNA? How are genes and alleles related to genotype and phenotype? How are genetic mutations detected? Why aren't autosomal diseases found on the x chromosome? Why should autosomal dominant traits be seen in every generation?
In other cases, the results of genetic testing are not as clear-cut. Often, the causes may be influenced by multiple genes, along with a mixture of lifestyle and environmental factors. Genomic variation―the DNA sequence differences among individuals or populations―is often misunderstood, says Cr...