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Definition: Reproduction from The SAGE Glossary of the Social and Behavioral Sciences

The biological process of creating progeny. To reproduce is to generate an offspring. Repro duction is a basic trait of all living organisms. Asexual reproduction generally involves a single “parent” and is often associated with plants, though not exclusively. Sexual reproduction typically involves a cellular exchange and a fertilization process.

reproduction

From The Hutchinson Unabridged Encyclopedia with Atlas and Weather Guide
In biology, the process by which a living organism produces other organisms more or less similar to itself. The ways in which species reproduce differ, but the two main methods are by asexual reproduction and sexual reproduction . Asexual reproduction involves only one parent without the formation of gametes : the parent's cells divide by mitosis to produce new cells with the same number and kind of chromosomes as its own. Thus offspring produced asexually are clones of the parent and there is no variation. Sexual reproduction involves two parents, one male and one female. The parents' sex cells divide by meiosis producing gametes, which contain only half the number of chromosomes of the parent cell. In this way, when two sets of chromosomes combine during fertilization , a new combination of genes is produced. Hence the new organism will differ from both parents, and variation is introduced. The ability to reproduce is considered one of the fundamental attributes of living things. …
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Full text Article reproduction

From Cambridge Dictionary of Sociology
This term has two major uses in sociology: social and physical reproduction. That there is a close relationship between the two has been emphasized by both feminism and those sociologists who have identified and investigated the continuity across time not just of social inequality but also of the…
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Full text Article reproduction

From Philip's Encyclopedia
Process by which living organisms create new organisms similar to themselves. Reproduction may be sexual or asexual, the first being the fusion of two special reproductive cells from different parents, and the second being the generation of new organisms from a single organism. Asexual reproduction…
| 164 words
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Reproductive strategies in marine animals range from the ‘broadcast’ spawners, which produce millions of small eggs, to the more conservative species, which produce only a few large eggs. Broadcast spawners rely on the survival of a few individuals from the many millions produced, since most are…
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Full text Article Reproduction

From The International Encyclopedia of Human Sexuality
assisted reproductive technology infertility reproduction Although sexuality and reproduction have been inextricably linked since the dawn of time, every known human society has techniques to control reproductive outcomes. Newly emergent assisted reproductive technology (ART), such as in‐vitro…
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Full text Article reproduction

From Merriam-Webster's Collegiate(R) Dictionary
pronunciation (1659) 1 :  the act or process of reproducing; specif :  the process by which plants and animals give rise to offspring and which fundamentally consists of the segregation of a portion of the parental body by a sexual or an asexual process and its subsequent growth and differentiation…
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Full text Article reproduction

From The Hutchinson Unabridged Encyclopedia with Atlas and Weather Guide
In biology, the process by which a living organism produces other organisms more or less similar to itself. The ways in which species reproduce differ, but the two main methods are by asexual reproduction and sexual reproduction . Asexual reproduction involves only one parent without the formation…
| 1,261 words
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Full text Article reproduction

From The Columbia Encyclopedia
capacity of all living systems to give rise to new systems similar to themselves. The term reproduction may refer to this power of self-duplication of a single cell or a multicellular animal or plant organism. In all cases reproduction consists of a basic pattern: the conversion by a parent organism…
| 914 words
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Full text Article Reproduction

From SAGE Key Concepts series: Key Concepts in Body and Society
Definition Reproduction is the process by which human beings (and other species) re-produce themselves. The male and female reproductive organs produce gametes or sex cells, namely ova and sperm. When an ovum and a sperm are brought together in the process of fertilization the joining of these two…
| 1,945 words
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Full text Article Reproduction

From The Wiley Blackwell Encyclopedia of Family Studies
contraceptives family‐building infertility new reproductive technologies pregnancy Abstract Popularized during the 1950s, the notion of the “traditional” nuclear family consisting of a heterosexual married couple and their biological children was considered the ideal. Accordingly, reproduction has…
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Full text Article REPRODUCTION

From Gaither's Dictionary of Scientific Quotations
English biologist and geneticist I know nothing which to a man well trained in scientific knowledge and method brings so vivid a realisation of our ignorance of the nature of life as the mystery of cell-division…. It is this power of spontaneous division which most sharply distinguishes the living…
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