Accession Number : AD0683315

Title :   THE SOMATIC CHROMOSOMES OF THE MONGOLIAN GERBIL (MERIONES UNGUICULATUS),

Corporate Author : NAVAL AEROSPACE MEDICAL INST PENSACOLA FLA

Personal Author(s) : Pakes,Steven P.

Report Date : JAN 1969

Pagination or Media Count : 14

Abstract : A study was initiated to characterize the somatic chromosomes of the Mongolian gerbil (Meriones unguiculatus) prior to conducting experiments concerned with the effects of various environmental factors encountered in space flight on mammalian chromosomes. From the study of bone marrow cells after intraperitoneal injection of colchicine it was determined that the diploid number of chromosomes for the Mongolian gerbil is 44. The karyotype was conducted by arranging the chromosomes into four distinct groups and includes 32 meta- or submetacentric and 10 acrocentric autosomal chromosomes. The X element was identified as a large submetacentric chromosome and the Y element as a medium-sized submetacentric chromosome. (Author)

Descriptors :   (*RODENTS, *CHROMOSOMES), GENETICS, BONE MARROW, CELLS(BIOLOGY), COLCHICINE, MORPHOLOGY(BIOLOGY), HISTOLOGICAL TECHNIQUES

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE