What term describes changes in the DNA bases?

What term describes changes in the DNA bases?

• A. Recessive changes
• B. Mutations
• C. Transpositions
• D. Combinations

Answer: (B)

The term that describes changes in the DNA bases is mutations. Mutations refer to any alteration in the nucleotide sequence of an organism's DNA. These changes can occur in various forms, such as a substitution of one base for another, insertion of extra bases, or deletion of bases from the DNA sequence. Mutations are significant because they can lead to variations among individuals and can drive the process of evolution. They can also have varying effects on organisms, ranging from beneficial adaptations to harmful consequences, and play a critical role in genetic diversity. Understanding mutations is fundamental to fields such as genetics, molecular biology, and medicine, as they are often the underlying cause of genetic disorders and can influence traits passed on to offspring. On the other hand, recessive changes pertain to how traits are expressed rather than referring to changes in the DNA itself. Transpositions involve segments of DNA being relocated to different positions within the genome, which is a specific type of mutation. Combinations typically refer to the mixing of genetic material but do not directly describe modifications to the DNA base sequence.

The term that describes changes in the DNA bases is mutations. Mutations refer to any alteration in the nucleotide sequence of an organism's DNA. These changes can occur in various forms, such as a substitution of one base for another, insertion of extra bases, or deletion of bases from the DNA sequence.

Mutations are significant because they can lead to variations among individuals and can drive the process of evolution. They can also have varying effects on organisms, ranging from beneficial adaptations to harmful consequences, and play a critical role in genetic diversity. Understanding mutations is fundamental to fields such as genetics, molecular biology, and medicine, as they are often the underlying cause of genetic disorders and can influence traits passed on to offspring.

On the other hand, recessive changes pertain to how traits are expressed rather than referring to changes in the DNA itself. Transpositions involve segments of DNA being relocated to different positions within the genome, which is a specific type of mutation. Combinations typically refer to the mixing of genetic material but do not directly describe modifications to the DNA base sequence.