The method of reduction in Elodea, therefore, is telosynaptic. 7. The bivalent chromosomes are twenty-four in number, one pair of which is conspicuously longer and thicker than the others, and another ...

US pharma giant Pfizer's new bivalent mRNA-based Covid booster vaccine has shown to be highly effective in reducing hospitalisation and deaths, particularly in vulnerable patients aged 65 years ...