Question

Summarize the four most important types of genetic variation:

a) SNPs - point mutations, CNVs - gene duplications, VNTRs - chromosomal rearrangements, chromosomal number variations - aneuploidy
b) SNPs - chromosomal rearrangements, CNVs - gene duplications, VNTRs - point mutations, chromosomal number variations - aneuploidy
c) SNPs - point mutations, CNVs - gene duplications, VNTRs - chromosomal rearrangements, chromosomal number variations - aneuploidy
d) SNPs - gene duplications, CNVs - point mutations, VNTRs - aneuploidy, chromosomal number variations - chromosomal rearrangements

Answer 1

The four main types of genetic variation are Single nucleotide polymorphisms (SNPs), Copy Number Variations (CNVs), Variable Number Tandem Repeats (VNTRs), and Chromosomal number variations (aneuploidy).

Step-by-step explanation:

The four most important types of genetic variation are:

• Single nucleotide polymorphisms (SNPs) - represent changes in single nucleotide bases (A, C, G, T).
• Copy Number Variations (CNVs) - involve gene duplications or deletions resulting in an increase or decrease in the amount of DNA.
• Variable Number Tandem Repeats (VNTRs) - consist of sequence repetitions in the DNA that may vary in length among individuals.
• Chromosomal number variations - such as aneuploidy, which is a deviation from the normal number of chromosomes, often leading to genetic conditions like Down syndrome.

These variations contribute to the unique genetic patterns found in individuals and influence how they respond to various environmental factors, including drug treatments.