Explain maternal-effect mutations?
Mutation means sudden changes occur in DNA sequences. The mutation occurs randomly. It also occurs during DNA replication and any changes occur in the DNA sequence lead to random mutation. The mutation causes a change in phenotype. The physical agent or chemical due to which mutation occurs known as mutagen and organisms in which the mutation occurs is called mutant. DNA change caused by mutagen. The mutation occurs due to exposure to ultraviolet rays, harmful chemicals, etc. So examples of mutagen are ultraviolet rays, x-rays, and some chemicals.
The maternal-effect is the situation when the phenotype of the offspring or the next generation is determined by the genotype of the mother. Mother genotype is the ultimate thing that will determine the phenotype of the offspring. No father influences will be there though they get the gene from father and they get the gene from mother but still there will be no effect of the presence of father gene. Only the effect of the mother gene will be reflected that thing is called maternal inheritance or maternal effect.
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