Infectivity of cloned begomoviral DNAs: an appraisal

Pseudorecombinants between Cloned DNAs of Two Isolates of Cassava Latent Virus

Infective clones of the Nigerian isolate of cassava latent virus (CLV) have been obtained. The apparent molecular weight of the capsid protein of this isolate is slightly higher than that produced in plants infected with cloned DNAs of the Kenyan isolate of CLV. Pseudorecombinant experiments using heterologous combinations of cloned DNAs have confirmed that the physical properties of the capsid...

Characterization of six cloned DNAs from Drosophila melanogaster, including one that contains the genes for rRNA.

pDm plasmids were constructed from D. melanogaster and pSC101 DNAs by a modification of the EcoR1-ligase method which insured that each hybrid molecule contained a single segment of D. melanogaster chromosomal DNA (Dm segment). The sequences in the Dm segments of six cloned pDm DNAs were mapped within the D. melanogaster polytene chromosomes by in situ hybridization, and their repetition freque...

Sustainable solid waste management: An appraisal of institutional limitations

This study investigates the underlying factors elucidating why solid waste management in Eldoret Town, Kenya, has up to now remained inadequate notwithstanding the existing legal framework that mandates the County Government of Uasin Gishu to ensure that all residents have access to a clean and healthy environment. The study adopted a descriptive research design. While, primary data were collec...

Two human papillomavirus DNAs molecularly cloned from a patient with epidermodysplasia verruciformis: restriction maps.

Two distinct human papillomavirus (HPV) DNAs (MY-1 and MY-2) were molecularly cloned from the benign skin lesions of a patient with epidermodysplasia verruciformis. The restriction map of MY-1 was the same as that of HPV 3a. The map of MY-2 appeared to be different from those of any HPVs reported in the literature. MY-2 did not cross-hybridize with MY-1 or the DNAs of HPV types 1, 2 and 4 under...

An Appraisal of Competency.