Answer:
Hormones
Explanation:
Hormones travel through the body
In the nucleus of a cell.
Answer:
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RNA splicing was first discovered in 1970s in viruses and subsequently in eukaryotes. Not long after, scientists discovered alternative patterns of pre-mRNA splicing that produced different mature mRNAs containing various combinations of exons from a single precursor mRNA. The first example of alternative splicing of a cellular gene in eukaryotes was identified in the IgM gene, a member of the immunoglobulin superfamily. Alternative splicing (AS) therefore is a process by which exons or portions of exons or noncoding regions within a pre-mRNA transcript are differentially joined or skipped, resulting in multiple protein isoforms being encoded by a single gene. This mechanism increases the informational diversity and functional capacity of a gene during post-transcriptional processing and provides an opportunity for gene regulation
Current evidence suggests that eukaryotes represent one or more endosymbiotic events in which the host cell was: <u>mitochondrial genomes</u>
What is mitochondrial genomes?
The DNA found in mitochondria, which are cellular organelles found in eukaryotic cells that transform chemical energy from food into a form that cells can utilise, such as adenosine triphosphate, is known as mitochondrial DNA (mtDNA or mDNA)](ATP). Only a small amount of the DNA in a eukaryotic cell is contained in the mitochondria; the majority of the DNA is found in the cell nucleus and, in plants and algae, also in plastids like chloroplasts.
The first large portion of the human genome to be sequenced was mitochondrial DNA.
According to this sequencing, the human mtDNA contains 16,569 base pairs and codes for 13 proteins.
Animal mtDNA serves as a cornerstone of phylogenetics and evolutionary biology because it evolves more quickly than nuclear genetic markers .
Learn more about the mitochondrial genomes with the help of the given link:-
brainly.com/question/15688630
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