Investigator Clayton is called to the scene of a crime. A young woman has been murdered in her apartment. Several hairs are foun
d on the victim's jacket, but they do not have follicular tissue or a root attached. Police suspect Travis, the young woman's neighbor, of the crime. Investigators can only try to analyze for mitochondrial DNA. The
mitochondrial DNA matches Travis but who else could it match?
The apartment super who just moved from Italy
Travis's mother, who lives with him
Travis's father, who works at night
Travis's uncle, his father's brother
<em>The correct option is A) Travis's mother, who lives with him</em>
Explanation:
We all know that humans reproduce sexually. The zygote formed consists half of the chromosomes or genome from the mother and half from the father. Hence, the sex cells undergo meiosis so that the chromosome number could be reduced to half in the sex cells.
However, the mitochondria present in a cell have their own DNA and instead of both parents being transferring this DNA, the mitochondrial DNA is just transferred by the mother to the offsprings. Hence, the mitochondrial DNA of mother and child will be the same.
RNA polymerase uses one of the DNA strands (the template strand) as a template to ... and death, because no new RNAs—and thus, no new proteins—can be made. ... During this process, the DNA sequence of a gene is copied into RNA. Before transcription can take place, the DNA double helix must unwind near the gene
Relative Age Determination. Superposition of rock units is a very simple and straightforward method of relative age determination. The principle states that in a sequence of undeformed sedimentary rocks the oldest beds are at the bottom and the youngest ones are at the top.
