Deleterious mutations are those changes in the genetic material that leads to an increased susceptibility of the organisms to a specific disease. When this type of mutation is acquired, it is likely for an organism to develop the symptoms but this is not certain.
The deleterious mutation has other names too like a pathogenic variant, susceptibility gene mutation and predisposing mutation. Most of the mutations that occur in the population are either neutral or deleterious. The proportion of advantageous mutations is very low. The deleterious mutations lead to the decreased fitness of an organism.
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
A woman who is heterozygous, Bb, has brown eyes;
Explain why familial breast cancer shows a dominant pattern of inheritance in
How is an F′ factor different from an F factor?
With regard to the timing of conjugation, explain why the recipient
The raw material for evolution is random mutation. Discuss whether or
Why is an antibody used in this experiment? From
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A recessive allele in mice results in an unusally long neck.