<h2>Nonsense Mutation</h2>
Explanation:
- Mutations are changes in a cell's DNA sequence. When a mutation happens in the coding sequence of a gene, the resulting protein is changed
- A nonsense mutation is a point mutation that introduces a premature stop codon into the part of the gene that encodes a protein. A stop codon is like a period at the end of a sentence. It instructs the ribosome to stop making the protein.Half-baked proteins that result from nonsense mutations are often nonfunctional or defective.
- The DNA sequence of the coding region of a gene is transcribed into a messenger RNA molecule, whose sequence is in turn read and decoded by the ribosome and transfers RNAs during translation.
- The sequence of a messenger RNA is read in groups of three nucleotides called codons. Each possible combination of the three RNA nucleotides (A, G, C and U) codes for an amino acid, translation start or translation stop. What you're looking at on screen is a table that shows what each codon means to the ribosome and transfer RNAs.
Gaseous cycles include those of nitrogen, oxygen, carbon, and water; sedimentary cycles include those of iron, calcium, phosphorus, sulfur, and other more-earthbound elements. ... In the hydrologic cycle, water is transferred between the land surface, the ocean, and the atmosphere.
In this problem, the most probable and the most likely answer to this would be the second option which is cytoskeleton.
The grid-like lattice of proteins that gives the cell shape of the cell and support it is the cytoskeleton. The support done by the cytoskeleton would be mainly the cellular movement. Without the cytoskeleton, the cells would be deformed and also would result to its movements being inefficient and might also result to the destabilization of the cell's structure.
Answer;
B) An overabundance of obstacle course challenges
Explanation;
When tires are dumped illegally, they can attract mosquitoes and lead to environmentally harmful fires.Tires collect water and attract mosquitoes,
In addition to being a prime breeding ground for mosquitoes, tire dumps can spawn fires that produce toxic smoke and oils. Tires can be recycled or properly disposed, but some end up stockpiled or illegally dumped around the state.
In order for a eukaryotic gene to be engineered into a bacterial colony to be expressed, what must be included in addition to the coding exons of the gene (c) a bacterial promoter sequence
Explanation:
<u>In Genetics, a promoter can be defined as a region of DNA where the process of transcription of a gene is initiated. </u>
<u>In the bacterial cell, the promoter region is present at the transcription start sites of genes ,on the upstream of the DNA and the process of transcription won't occur unless the promoter sequences is present. </u>
<u>Other options like introns are not required because introns are the non- coding sequences and they do not have any role to play in the expression of genes.</u>
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<u>Promoters are an important component of expression vectors because they control the binding of RNA polymerase to DNA. </u>
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<u>so, in addition to our desired code of exons, a bacterial promoter sequence must be attached for the expression of the genes.</u>
