hce_kmu
105年
普通生物及生化概論
第 57 題
For the reproduction of flowering plants, double fertilization:
- A is characteristic of all plants.
- B produces a triploid sporophyte and a diploid endosperm.
- C results in the fertilization of egg by sperm and polar nuclei by pollen tube nucleus.
- D results from the fusion of the male and female sporophytes of angiosperms.
- E prevents the production of fertile pollen grains.
思路引導 VIP
在被子植物的胚囊受精過程中，會有兩顆精細胞參與。請試著推論：如果其中一顆精細胞是與一個核結合，而另一顆精細胞是與「兩個」核同時結合，這兩組受精產物在染色體的「套數」（倍性）上，應該會呈現什麼樣的比例關係呢？