Answer:
Mutation causes the deletion ofa chromosome.
Explanation:
Mutation, an alteration in the genetic material (the genome) of a cell of a living organism or of a virus that is more or less permanent and that can be transmitted to the cell’s or the virus’s descendants. (The genomes of organisms are all composed of DNA, whereas viral genomes can be of DNA or RNA; see heredity: The physical basis of heredity.) Mutation in the DNA of a body cell of a multicellular organism (somatic mutation) may be transmitted to descendant cells by DNA replication and hence result in a sector or patch of cells having abnormal function, an example being cancer. Mutations in egg or sperm cells (germinal mutations) may result in an individual offspring all of whose cells carry the mutation, which often confers some serious malfunction, as in the case of a human genetic disease such as cystic fibrosis. Mutations result either from accidents during the normal chemical transactions of DNA, often during replication, or from exposure to high-energy electromagnetic radiation (e.g., ultraviolet light or X-rays) or particle radiation or to highly reactive chemicals in the environment. Because mutations are random changes, they are expected to be mostly deleterious, but some may be beneficial in certain environments. In general, mutation is the main source of genetic variation, which is the raw material for evolution by natural selection.
All the options are correct.
<h3><u>Explanation</u>:</h3>
DNA dependent RNA polymerase is the main enzyme in case of transcription. This enzyme sits on the promoter region of the DNA that marks the beginning point of the transcription. The end point of the transcriptosome is marked by the poly Adenine tails.
The start codon and the stop codons marks the beginning point and end point of the functional part of the genes.
In the daily life, due to exposure to different mutagens, the DNA strand often gets mutated by point mutations. The DNA dependent RNA polymerase and the DNA dependent DNA polymerase knows the checking mechanism by which they can restore the normal DNA configuration. So all the options given here are correctly matched with the event.
Certain genes that allow for a certain thing to happen are turned on or turned off as needed. A brain cell may have the gene needed to send electrical pulses to other brain cells or other parts of the body, whereas a heart cell may have the genes that allow it to contract to pump blood. (I don't know if those are real genes, but hopefully you get the idea)
Answer:
Missense
Explanation:
The key in this question is 'which type of mutation causes this problem.
The description of this disease gives the the answer. A replacement of a glutamic acid amino acid with and Valine amino acid is called missense.
Silent mutation do not cause any difference in structure or function of the protein.
Insertions are an additional nucleotide or 2 added to the sequence
Frameshifts are the same as insertions, but the insertion occurs in part of the gene that codes for the protein. Because of that 'insertion' the reading frame of this gene is out and the protein sequence is not correct.
An Egg Develops Without Being Fertilized By A Sperm.
