A simple, rapid capillary tube test to discriminate between penicillin-resistant and -sensitive
Staphylococcus aureus
is presented. This test detects penicillinase in noninduced primary isolates from ...blood-agar plates.
A survey of X chromatin in the newborn Petersen, K W; Jacobson, C B; Telford, I R ...
Biology of the neonate,
1976, Letnik:
29, Številka:
5-6
Journal Article
Recenzirano
Buccal smears were analyzed for X chromatin in 1,000 newborn infants. The mean percentage of X chromatin in the 506 female infants was 39.5 (range 19-61) and in the 494 males 0.13 (range 0-3.0). ...Evaluation of the data comparing the percentage of X chromatin with caucasian and noncaucasian infants, the weight of the newborn, and the gestation time, indicated no significant differences within the male or female populations. A longitudinal study on 25 female infants for the first 4 days postpartum indicated a significant increase in the percentage of X chromatin in females.
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