EASY
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In polyembryony

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Important Questions on Sexual Reproduction in Flowering Plants

EASY

Listed below are different plant reproductive strategies.

I. Parthenocarpy

II. Syngamy

III. Apomixis

IV. Polyembryony

Which of them can give rise to a clonal progeny having the same genotype as that of the mother plant?

MEDIUM
During fertilisation in plants the male and female gametes unite, triggering the process of cell division followed by seed formation. A gene BBM1, expressed only in the male gamete, is responsible for eliciting rapid cell division. A researcher overexpressed the BBM1 gene in the female gamete that resulted in the multiplication of the female gamete into an embryo and then the seed. The plants obtained from these seeds were genetically identical to the parent. This phenomenon is commonly seen in a few select plants naturally, and is known as
MEDIUM

Statement - 'X': Apomixis is seen in a few flowering plants such as some species of Asteraceae and grasses.
Statement - 'Y': Apomixis is a form of asexual reproduction that mimics sexual reproduction.

Statement - 'Z': In some species of apomictic seeds, the diploid egg cell is formed without reduction division.
Choose the correct option.

MEDIUM

Match the Column I with Column II and select the correct option from the choice below:

Column I Column II
a. Polyembryony i. Commelina
b. Dioecious ii. Grass
c. Cleistogamous iii. Date palm
d. Apomixis iv. Citrus
EASY
Differentiate between Parthenocarpy and Parthenogenesis. Give one example of each.
MEDIUM
What is parthenocarpic fruit? How can the formation of such fruits be induced?
EASY
Seed formation without fertilization in flowering plants involves the process of