Question 1 1 pts Recently, two Japanese researchers used DNA sequences from HTLV

Question

Question 1 1 pts Recently, two Japanese researchers used DNA sequences from HTLV-I viruses to determine the origin of humans who migrated to the New World. HTLV-I is a retrovirus that causes adult leukemia in a small percentage of the infected population. HTLV-1 is a retrovirus and possesses a genome composed of two identical strands of D Question 2 2 pts Most people who are infected with the HTLV-1 virus are asymptomatic carriers. One specific subtype of HTLV-I occurs only in a sub-population of the Japanese population and among the native peoples of the Andes mountain area of northern Chile. The researchers are looking for the presence of HTLV-1 DNA in the bone marrow cells of well-preserved Andean mummies. The presence of HTLV-1 DNA in the mummies, of the same subtype observed in Japan, would indicate that some of the first people to migrate to the New World came from Japan. You identified the type of genome possessed by HTLV-1 in your previous answer. Explain how/why HTLV-1 DNA might be found in the bone marrow of the mummies. Be thorough and specific in your response.

Explanation / Answer

1. Ans: single stranded RNA

2. Bone marrow is the site of origin of T lymphocyte. HTLV-1 is a retrovirus associated with adult T-cell leukemia / lymphoma. Though the virus is RNA virus, its genome is copied into double stranded DNA form that integrates into the host cell genome.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.