Solved

Moths Visit Night-Blooming Cereus Flowers in the Evening and Pass

Question 202

Multiple Choice

Moths visit night-blooming cereus flowers in the evening and pass pollen from one flower to another while collecting nectar.Once in contact with a stigma, these pollen grains germinate into tubes and extend through the maternal sporophyte tissue to the female gametophyte, where two sperm cells are released.Which statement accurately describes the process that ensues once the sperm cells meet the female gametophyte?


A) Once the sperm and egg nucleus fuse, pollination occurs and a zygote forms.
B) Once one of the sperm nuclei and the egg nucleus fuse, fertilization occurs and the second sperm cell degenerates.
C) Once the pollen tube reaches the female gametophyte, one of the sperm cells fertilizes the egg, and the other fertilizes the polar nuclei.
D) Once the pollen tube reaches the female gametophyte, one of the sperm cells fertilizes the egg, and the other pollinates the polar nuclei.
E) Once the pollen tube reaches the female gametophyte, one of the sperm cells pollinates the egg, and the other fertilizes the polar nuclei.

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Unlock this Answer For Free Now!

View this answer and more for free by performing one of the following actions

qr-code

Scan the QR code to install the App and get 2 free unlocks

upload documents

Unlock quizzes for free by uploading documents