Question

Mutations are caused by ______.

• A. Polyploidy
• B. Hybridization
• C. Aneuploidy
• D. All of the above

Answer 1

The correct option is D All of the above

In biology, a mutation is a permanent change of the nucleotide sequence of the genome of an organism, virus, or extrachromosomal DNA or other genetic elements.

• Polyploid cells and organisms are those containing more than two paired (homologous) sets of chromosomes. Most species whose cells have nuclei (eukaryotes) are diploid, meaning they have two sets of chromosomes one set inherited from each parent.
• In molecular biology, hybridization (or hybridization) is a phenomenon in which single-stranded deoxyribonucleic acid (DNA) or ribonucleic acid (RNA) molecules anneal to complementary DNA or RNA.
• Aneuploidy is a condition in which the number of chromosomes in the nucleus of a cell is not an exact multiple of the monoploid number of a particular species. An extra or missing chromosome is a common cause of genetic disorders including human birth defects. Some cancer cells also have abnormal numbers of chromosomes.

So, the correct answer is option D.