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ID number:721193
 
Author:
Evaluation:
Published: 01.04.2005.
Language: Latvian
Level: Secondary school
Literature: n/a
References: Not used
Extract

Gameta – dzimumšūna
Spermiji – nekustīgas, vīr. dzimumšūnas augiem
Vienmāju augi(kopdzimum) – vienā īpatnī attīstās abu veidu gametas(gurķi, ķirbji, magones, rozes)
Kopdzimuma organisms – hermafrodīts(tārpi, dliemji)
Divmāju augi – izšķir siev un vīr dzimumu(apses, kaņepes)
Zigota – apaugļota olšūna, tā rodas saplūstot gametām. Ar dzimumvairošanos jaunais organisms saņem gēnus no abiem vecākiem.
Hromosomas – ir šūnas kodola veidojumi, kuri glabā info par sugas iedzimtām pazīmēm gēnu veidā(DNS)
Homologās hromosomas - viena pāra hromosomas
Diploīdais hromosomu skaits – 2n pilns skaits…

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