Question

Place the following steps in the order in which 23andMe genotypes DNA:

a) Collect saliva sample, Extract DNA, Analyze DNA
b) Analyze DNA, Extract DNA, Collect saliva sample
c) Extract DNA, Collect saliva sample, Analyze DNA
d) Collect saliva sample, Analyze DNA, Extract DNA

Answer 1

The correct order for genotyping DNA with 23andMe is to collect a saliva sample, extract DNA from it, and then analyze the DNA.

Step-by-step explanation:

The correct order in which 23andMe genotypes DNA is: Collect saliva sample, Extract DNA, Analyze DNA. Therefore, the right option is a) Collect saliva sample, Extract DNA, Analyze DNA.

This process involves several steps including digesting genomic DNA, running digested products on agarose gel, blotting the DNA onto a filter, denaturing the DNA, and finally adding a radioactive probe to hybridize with the complementary sequences.