THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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methylation
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acetylation
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transcription
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translation
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Detailed explanation-1: -Epigenetic changes are modifications to DNA that regulate whether genes are turned on or off. These modifications are attached to DNA and do not change the sequence of DNA building blocks.
Detailed explanation-2: -Epigenetic changes modify the activation of certain genes, but not the genetic code sequence of DNA.
Detailed explanation-3: -Epigenetics investigates heritable changes in gene expression occurring without changes in DNA sequence. Several epigenetic mechanisms, including DNA methylation, histone modifications, and microRNA (miRNA) expression, can change genome function under exogenous influence.
Detailed explanation-4: -Modification of DNA base is one of the main epigenetic mechanisms which regulate gene expression in both plants and animals. DNA methylation indicates attachment of a methyl (CH3) group at 5′-carbon of pyrimidine ring of cytosine nucleotide.
Detailed explanation-5: -Methylation is a chemical modification of DNA and other molecules that may be retained as cells divide to make more cells. When found in DNA, methylation can alter gene expression.