Question

Mitochondrial DNA (mtDNA) in humans is always donated to the offspring from both parents. It can be used to identify related people and establish paternity. Can it be isolated only from intact embryos?

1) Yes
2) No

Answer 1

Mitochondrial DNA (mtDNA) can be isolated from various sources, not just intact embryos. It can be extracted from any tissue that contains mitochondria. This allows for the identification of related individuals and establishment of paternity using mtDNA analysis.

Step-by-step explanation:

No, mitochondrial DNA (mtDNA) can be isolated from various sources, not just intact embryos. mtDNA can be extracted from any tissue that contains mitochondria, such as hair, skin, blood, and bone. This makes it possible to identify related individuals and establish paternity using mtDNA analysis, even if only a small sample of the person's DNA is available.