1. What is parthenocarpy?
A.
Formation of fruits without fertilization
B.
Formation of seeds without flowers
C.
Growth of roots from leaves
D.
Opening of flowers before pollination
Correct Answer:
Formation of fruits without fertilization
Explanation:
Parthenocarpy is the development of a fruit without fertilization, often resulting in seedless fruits.
2. A fruit produced by parthenocarpy is generally
A.
Seedless
B.
Rootless
C.
Flowerless
D.
Leafless
Correct Answer:
Seedless
Explanation:
Since fertilization does not occur during parthenocarpy, seeds usually do not develop in the fruit.
3. Which plant hormone can be used to induce parthenocarpic fruits?
A.
Auxin
B.
Ethylene
C.
Abscisic acid
D.
Cytokinin only
Correct Answer:
Auxin
Explanation:
Auxin application to flowers can stimulate fruit development without fertilization, producing parthenocarpic fruits.
4. Parthenocarpic fruit development takes place without
A.
Fertilization
B.
Fruit growth
C.
Flower formation
D.
Cell division
Correct Answer:
Fertilization
Explanation:
The defining feature of parthenocarpy is fruit formation in the absence of fertilization.
5. Which of the following is a common example of a naturally parthenocarpic fruit?
A.
Banana
B.
Pea
C.
Bean
D.
Mustard
Correct Answer:
Banana
Explanation:
Banana commonly develops parthenocarpically and therefore usually lacks mature seeds.
6. Why is parthenocarpy useful in fruit production?
A.
It can produce seedless fruits
B.
It prevents fruit growth
C.
It produces only underground fruits
D.
It stops flower formation
Correct Answer:
It can produce seedless fruits
Explanation:
Parthenocarpy is useful because it allows the production of fruits without seeds, which is desirable in many crops.
7. Artificial parthenocarpy can be induced by applying auxin to
A.
The flower or ovary
B.
The mature seed only
C.
The plant root only
D.
The dry leaf only
Correct Answer:
The flower or ovary
Explanation:
Applying auxin to the flower or ovary can stimulate fruit development without fertilization.
8. In parthenocarpy, the ovary develops into a
A.
Fruit
B.
Root
C.
Leaf
D.
Stem tendril
Correct Answer:
Fruit
Explanation:
During parthenocarpy, the ovary grows and develops into a fruit even though fertilization has not occurred.
9. Which type of fruit is commonly obtained through artificial parthenocarpy?
A.
Seedless fruit
B.
Seed-only fruit
C.
Root fruit
D.
Leaf fruit
Correct Answer:
Seedless fruit
Explanation:
Artificial induction of parthenocarpy is used to develop fruits without seeds by stimulating fruit growth without fertilization.
10. Parthenocarpy is especially desirable when consumers prefer fruits that are
A.
Free from seeds
B.
Full of hard seeds
C.
Unable to grow
D.
Without fruit pulp
Correct Answer:
Free from seeds
Explanation:
A major application of parthenocarpy is the production of seedless fruits, which are convenient for consumption.
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