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Chromosomes
13
Zea mays
10
Genetics
7
Psychiatry
4
Crossing Over, Genetic
3
Genes, Plant
3
Neurology
3
Research Support as Topic
3
Tuberculosis
3
Antigens
2
Education, Medical
2
Genetic Linkage
2
Hospitals, Psychiatric
2
Immunity
2
Meiosis
2
Research Personnel
2
Viruses
2
Antibodies
1
Ascorbic Acid
1
Cytological Techniques
1