If a disorder is not present in a child family but the fetus itself is infected before birth, it is known as:
Correct answer: D. De novo mutation
- A. Somatic Mutation
- B. Hereditary mutation
- C. Germ line mutation
- D. De novo mutation
Explanation
De navo mutation is A genetic alteration that is present for the first time in one family member as a result of a variant (or mutation) in a germ cell (egg or sperm) of one of the parents, or a variant that arises in the fertilized egg itself during early embryogenesis.De novo gene birth is the process by which new genes evolve from DNA sequences that were ancestrally non-genic.
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About Chromosomes
Chromosomes are DNA-protein structures that carry genes and become visible during cell division. Coverage includes chromatin, centromeres, sister chromatids, homologous chromosomes, chromosome number, and the distinction between diploid and haploid cells, with links to DNA replication, mitosis and meiosis.
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