secondary sex ratio

См. также в других словарях:

• secondary sex ratio — secondary sex ratio. См. вторичное соотношение полов. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

• Sex ratio — is the ratio of males to females in a population. The primary sex ratio is the ratio at the time of conception, secondary sex ratio is the ratio at time of birth, and tertiary sex ratio is the ratio of mature organisms. [Nancy S. Coney and W. C.… …   Wikipedia

• sex ratio — n the proportion of males to females in a population as expressed by the number of males per hundred females * * * the proportion of males to females in a population, usually expressed as the number of males per 100 females. The primary sex ratio …   Medical dictionary

• sex ratio — the proportion of males to females in a population, usually expressed as the number of males per 100 females. The primary sex ratio, at the time of fertilization, is in theory 50% male. The secondary sex ratio, found at birth, usually indicates… …   The new mediacal dictionary

• Secondary sex characteristic — Secondary sex characteristics are traits that distinguish the two sexes of a species, but that are not directly part of the reproductive system. They are believed to be the product of sexual selection for traits which give an individual an… …   Wikipedia

• Human sex ratio — In anthropology and demography, the human sex ratio is the sex ratio for Homo sapiens (i.e. the ratio of males to females in a population). Like most sexual species, the sex ratio is approximately 1:1. In humans the secondary sex ratio (i.e. at… …   Wikipedia

• Индекс Половой (Sex Ratio) — соотношение количества мужчин и женщин в популяции, обычно выражаемое как число мужчин, приходящееся на 100 женщин. Первичный половой индекс (primary sex ratio) к моменту оплодотворения теоретически составляет 50%. Вторичный половой индекс… …   Медицинские термины

• Sex differences in humans — Male and female anatomy. Note that these models have had body hair and male facial hair removed and head hair trimmed. A sex difference is a distinction of biological and/or physiological characteristics associated with either males or females of …   Wikipedia

• ratio — An expression of the relation of one quantity to another ( e.g., of a proportion or rate). SEE ALSO: index (2), quotient. [L. r. (ration ) a reckoning, reason, fr. reor, pp. ratus, to reckon, compute] absolute terminal innervation r. the number… …   Medical dictionary

• Sex and psychology — This article is about psychology and the male and female biological sexes. For information about human sexual perceptions, see Human sexuality. Research on sex and psychology investigates cognitive and behavioral differences between men and women …   Wikipedia

• Manhasset Secondary School — Location 200 Memorial Place Manhasset, NY 11030 Information Type Middle School / Public High Sc …   Wikipedia