Mutations are an everyday occurrence
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Mutations are an everyday occurrence

[From: ] [author: ] [Date: 12-11-19] [Hit: ]
10pts to best answer thanks so much-A.structural mutation have four types of change in the chromosomal structure: TRANSLOCATION, INVERSION, DELETION AND DUPLICATION.numerical mutation results from nondisjunction, or the failure of a pair of homologous choromosomes or a pair of sister chromatids to separate during meiosis or mitosis.......
A. Describe the two categories of mutations and show how these mutations might occur.
B. Explain what mutagens are
C. Explain what missense mutations and nonsense mutations are
D. What will mutations do in an organism
10pts to best answer thanks so much

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A. Structural and numerical mutations -
structural mutation have four types of change in the chromosomal structure: TRANSLOCATION, INVERSION, DELETION AND DUPLICATION.

numerical mutation results from nondisjunction, or the failure of a pair of homologous choromosomes or a pair of sister chromatids to separate during meiosis or mitosis. The effect of nondisjunction during mitosis is not harmful as the effect of nondisjunction during meiosis.

B. Mutagens are agents which cause mutations.
C. Missense mutations are when a mutation causes the insertion of the incorrect amino acid on the growing peptide chain to occur during translation.
Nonsense mutations are when a mutation occurs which results in a stop codon within the reading frame of the gene.
D. Mutations may be neutral, deleterious, or beneficial to an organism. Neutral mutations, as the name implies, have no effect on the overall fitness of the organism. Deleterious mutations cause a decrease in fitness where a beneficial one increases it.
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