A change in the morphology of the leaves generated can frequently be used to detect when an apical meristem transition from the juvenile to the mature vegetative phase.
<h3><u>Apical meristem: What is it?</u></h3>
The growth zone within the tips of new shoots and leaves as well as the root tips of plants is known as the apical meristem. One of three meristem types, or tissues that can differentiate into distinct cell types, is the apical meristem. Plant growth takes place in the meristem tissue.
Apical growth is defined as taking place at the top and bottom of the plant. While lateral meristems are found between branches, intercalary meristems grow in girth like those of woody plants. The apical meristem is essential for expanding both the roots' and leaves' access to light energy and nutrients. For plants to succeed, they need to grow in both of these directions.
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D.Mutation causing uncontrolled cell division
Explanation:
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Answer:
This is through the process of methylation and phosphorylation of histones tails.
Explanation:
The addition of a methyl group to the amino acid of the histones of the nucleosomes that compacted DNA in the nucleus is called mehtylation, while the addtion of phodpahte is phosphorylation
Its effects on gene expression depends on the number of <u> methyl groups, and type of amino acid that methylated. During transcription. </u>
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The DNA double strands are compacted and therefore hidden from transcription factors and enzymes of transcription by the hitones tails of the neuclosomes, Methylation weaken the binding bonds between the tails and DNA structure ; thereby aiding the uncoiling of DNA from the tails.(nucleosomes).This chemical reaction aided DNA strands exposure to transcription factors and enzymes, for initiation of transcription. This explains the dyanmic activity of methylation
Futhermore phophorylation also favours unwrapping of DNA, by imitating modifying enzymes e.g H3Y41E and H3T45E and convert it to→→ H3Y41phopspahte to aid DNA unwrapping and accessibility to transcription factors and RNA polymerase Enzymes,
