Adventive embryony in Citrus is due to:
Correct answer: A. Nucellus
- A. Nucellus
- B. Integuments
- C. Zygotic embryo
- D. Fertilized egg
Explanation
Presence of more than one embryo inside the seed is called polyembryony. It is more common in gymnosperms than angiosperms. In angiosperms, it is generally present as an unusual feature in few cases like Citrus, mango etc. In Citrus many embryos are formed from the structures outside the embryo (like nucellus). This is commonly called adventive polyembryony. In Citrus upto 10 nucellar embryos are formed.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Reproduction
Human reproduction covers the male and female reproductive organs, gamete formation, fertilization, implantation and hormonal regulation. The menstrual cycle includes ovarian and uterine changes controlled by pituitary and ovarian hormones, while sexually transmitted diseases are studied through their causes, transmission, symptoms, prevention and effects on fertility.
Practise Reproduction
1,220 free Reproduction MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Reproduction questions
What is the direction of the micropyle in the anatropous ovule?
In angiosperm, all the four microspores of a tetrad are covered by a layer that is formed by:
In a flowering plant, archesporium gives rise to:
Anemophily type of pollination is found in:
The endosperm of gymnosperm is:
An interesting modification of flower shape for insect pollination occurs in some orchids. A male insect mistakes the pattern on the orchid flower for the female species and tries to copulate with it thereby pollinating the flower. This phenomenon is called: