. Breeding of farm animals. Livestock. 15 BREEDING OF FARM ANIMALS in some cases possibly for weeks. When mounted and protected from evaporation, they have been known to show vibratile motion after the lapse of nine days. Weak alkaline solution renders them more active, while acids, even very dilute, destroy them. Chromosome reduction.—Since the number of chromo- somes in a given class of animals is constant, and since fertilization requires the union of a sperm cell from the male with an egg cell from the female, each containing i6 chromosomes, is it necessary that the number be re- duced in
. Breeding of farm animals. Livestock. 15 BREEDING OF FARM ANIMALS in some cases possibly for weeks. When mounted and protected from evaporation, they have been known to show vibratile motion after the lapse of nine days. Weak alkaline solution renders them more active, while acids, even very dilute, destroy them. Chromosome reduction.—Since the number of chromo- somes in a given class of animals is constant, and since fertilization requires the union of a sperm cell from the male with an egg cell from the female, each containing i6 chromosomes, is it necessary that the number be re- duced in the germ cells before fertilization, in order to. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harper, Merritt Wesley, 1877-. New York, Orange Judd
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlivesto, bookyear1914
