THE MOLECULAR BASIS OF INHERITANCE
GENE MUTATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They prevent genetic disorder/disease.
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To ensure all available genes in the cell are expressed.
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So that only the required genes for each specialized cell expressed.
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Gene regulation is how your brain replaces DNA
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Detailed explanation-1: -These different patterns of gene expression cause your various cell types to have different sets of proteins, making each cell type uniquely specialized to do its job. For example, one of the jobs of the liver is to remove toxic substances like alcohol from the bloodstream.
Detailed explanation-2: -Gene regulation is an important part of normal development. Genes are turned on and off in different patterns during development to make a brain cell look and act different from a liver cell or a muscle cell, for example. Gene regulation also allows cells to react quickly to changes in their environments.
Detailed explanation-3: -Initiation of transcription is the most important step in gene expression. Without the initiation of transcription, and the subsequent transcription of the gene into mRNA by RNA polymerase, the phenotype controlled by the gene will not be seen.
Detailed explanation-4: -Generic embryonic cells differentiate into specialized cells through cell differentiation. This happens as a result of a process known as gene expression. Gene expression refers to the set of genes that are switched on or off (expressed or repressed), determining how a cell works.
Detailed explanation-5: -Moreover, cells can change the pattern of genes they express in response to changes in their environment, such as signals from other cells. Although all of the steps involved in expressing a gene can in principle be regulated, for most genes the initiation of RNA transcription is the most important point of control.