Meiosis How Reproductive Cells Divide & Pass on DNA. haploid cells are the result of meiosis Cells having homologous chromosomes (two genes for each trait) are diploid • symbolized by Ligamiento entrecruzamiento. [watercourse]vado crossover {n} (the result of the exchange of genetic material during meiosis) — entrecruzamiento {m} cross-platform {adj} (designed to work. Mecanismos por los que se produce variación genética en la meiosis Entrecruzamiento durante profase I El entrecruzamiento implica un intercambio entre.

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Fertilization restores the chromosomes in body cells to the diploid number. To allow crossing-over to take place between each pair of parental chromosomes.

Comparación entre mitosis y meiosis

A dictionary of genetics. Return to KudoZ list.

The evolutionary ecology of gynogenesis. The KudoZ network provides a framework for translators and others to assist each other with translations or explanations of terms and short phrases. The function of entrectuzamiento first division is to permit crossing over. English, Spanish PRO pts in category: Sexual reproduction takes place when a sperm fertilizes an egg.


crossing over

This system of reproduction is called apogamy. View Ideas submitted by the community. This page was last changed on 21 Novemberat Variation and evolution in plants.

Meiosis is a special type of cell division. Grading comment 4 KudoZ points were awarded for this answer. So, the parthenogenetic greenfly offspring are not identical, and do show some genetic variation: At the end of the season, when the entreccruzamiento gets worse, they use sexual reproduction. Cada quiasma se origina en un sitio de entreccruzamiento, lugar en el que anteriormente se rompieron dos cromatidas hermanas que intercambiaron material This is when several generations are born by virgin birth, and then a generation occurs with normal sexual reproduction.

Spanish PRO pts in category: Ecology and evolution of sex in aphids. Retrieved from ” https: In the long run, entrecruzamirnto increases genetic variationin a way which will be explained later. This also includes many single-celled organisms.

Meiosis – Simple English Wikipedia, the free encyclopedia

Login or register free and only takes a few minutes to participate in this question. See Terms of Use for details. The Evolution of Sex. The only exception are the sex chromosomes. Patents, Trademarks, Copyright Law: The two cells prepare to divide again in a stage known as interkinesis or interphase II.


Term search All of ProZ. Examples include aphidsand cladocerans small crustacea called water fleas.

You can request verification for native languages by completing a simple application that takes only a couple of minutes. In mammalsthe female has two X chromosomes, and the male one X and one Y chromosome. Login to enter a peer comment or grade. Enrtecruzamiento native language verification applications submitted by your peers.

The growth of biological thought: Columbia University Press N.