MEDIUM
Earn 100

Assertion: Apomictics do not show segregation of characters in their progeny and therefore have huge potential in hybrid seed industry.

Reason: Apomictic seeds are produced without fertilization.

The correct option among the following is:

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Important Questions on Sexual Reproduction in Flowering Plants

EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Define the term apomixis.
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
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
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
What is Apomixis?
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Which of the following is not a type of agamospermy?
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Write a short note on apomixis.
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Apomixis is the development of 
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony

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.

HARD
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Two loudspeakers M and N are located 20 m apart and emit sound at frequencies 118 Hz and 121 Hz, respectively. A car is initially at a point P, 1800 m away from the midpoint Q of the line MN and moves towards Q constantly at 60 km h-1 along the perpendicular bisector of MN. It crosses Q and eventually reaches a point R, 1800 m away from Q. Let νt represent the beat frequency measured by a person sitting in the car at time t. Let νp, νQ and νR be the beat frequencies measured at locations P, Q and R, respectively. The speed of sound in air is 330 m s-1. Which of the following statement(s) is (are) true regarding the sound heard by the person?
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony

Fill in the blank with the most appropriate option given below.

We should give everyone training in citizenship, but we have______this aspect till now.

EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Write one point of difference between apomixis and polyembryony. 
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony

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
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
What is common between vegetative reproduction and apomixis?
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Nucellar polyembryony is seen in the species of
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Define apomixis.
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Define parthenocarpy.
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Which of the following is not a pair of prime numbers ?
MEDIUM
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
The difference between the Red List and Red Data Book is
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Define the term apomixis.
EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony

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?

EASY
Biology>Reproduction>Sexual Reproduction in Flowering Plants>Apomixis and Polyembryony
Seed formation without fertilization in flowering plants involves the process of