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

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)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1969
Accession Number
AD0683315

Entities

People

  • Steven P. Pakes

Organizations

  • Naval Aerospace Medical Institute

Tags

DTIC Thesaurus Topics

  • Alkaloids
  • Anatomy
  • Biological Sciences
  • Bone Marrow
  • Bone Marrow Cells
  • Bones
  • Cells
  • Cells (Biology)
  • Chromosomes
  • Flight
  • Space Flight

Readers

  • Military Engineering.
  • Molecular and genetic basis of cancer.
  • Systems Analysis and Design

Technology Areas

  • Space