Pollination and Fertilization Test

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Pollination and Fertilization Test - 3

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Weekly Quiz Competition

Question 1
1 / -0

An endosperm in plants is

A
1n

B
2n

C
3n

D
4n

E
5n
Question 2
1 / -0

Some bisexual flowers remain closed all their life so that the pollen can easily pollinate the stigma of the flower. What is this condition called?

A
Homogamy

B
Heterogamy

C
Cleistogamy

D
Dichtyogamy

E
Protogyny
Question 3
1 / -0

Which of the following is/are the agent(s) of pollination in entomophily?

A
Water

B
Wind

C
Insects

D
Bats

E
Birds
Question 4
1 / -0

If the timing of maturation of androecium and gynoecium is different, the condition is called ____________.

A
homogamy

B
cleistogamy

C
herkogamy

D
dichogamy

E
heterogamy
Question 5
1 / -0

Which of the following statements is false for self pollination?

A
It preserves the parental characters indefinitely.

B
It leads to loss of vigour and vitality.

C
It leads to new varieties.

D
The genetic defects of the plant variety cannot be eliminated.

E
The flowers need not produce nectar and scent.
Question 6
1 / -0

Which of the following is not true about ovule?

A
It is a small structure contained in the ovary.

B
It is surrounded by integuments.

C
It has an opening to one side called micropyle.

D
It contains single polar nuclei.

E
It also contains two synergids and three antipodal cells.
Question 7
1 / -0

Which of the following is not a unisexual plant?

A
Maize

B
Castor

C
Cucumber

D
Salvia

E
Palm
Question 8
1 / -0

Which of the following is not an insect pollinated flower?

A
Salvia

B
Petunia

C
Butter cup

D
Pine

E
Dandelion
Question 9
1 / -0

Which of the following is not correct about cross pollination?

A
It is not a source of variation in offsprings.

B
It is uncertain.

C
It occurs in unisexual and bisexual flowers.

D
Seeds produced are viable and healthier.

E
None of these
Question 10
1 / -0

Which of the following plants shows hydrophily?

A
Grass

B
Vallisneria

C
Hazel

D
Millow

E
Maize
Question 11
1 / -0

Which of the following plants shows herkogamy?

A
Gloriosa

B
Apple

C
Grapes

D
Salvia

E
Castor
Question 12
1 / -0

Which of the following is not a characteristic feature of flowers pollinated by water?

A
Pollen grains are produced in a large number.

B
Flowers are light in weight.

C
Flowers are small and inconspicuous.

D
Plants are monoecious.

E
Pollen grains have specific gravity equal to water.
Question 13
1 / -0

Which of the following is not a characteristic feature of insect pollinated flowers?

A
Petals are small and white coloured.

B
They produce copious amount of nectar.

C
Pollen grains are produced in small quantity.

D
Nectar guides are present.

E
Anthers with short filaments are present.
Question 14
1 / -0

How many male gametes are present in a pollen tube?

A
One

B
Two

C
Three

D
Four

E
Five
Question 15
1 / -0

If anthers of a flower mature earlier than stigma, the condition is called ________________.

A
protandry

B
protogyny

C
cleistogamy

D
herkogamy

E
homogamy
Question 16
1 / -0

In which of the following conditions are anther and stigma so placed in a flower that the pollen grains are unable to reach the stigma?

A
Karyogamy

B
Herkogamy

C
Dichogamy

D
Cleistogamy

E
Protogyny
Question 17
1 / -0

In which of the following conditions are the length of the style and position of anthers different?

A
Herkogamy

B
Heterostyly

C
Dichogamy

D
Protogyny

E
Heterokamy
Question 18
1 / -0

Which of the following plants shows protogany?

A
Lady`s finger

B
Sweet pea

C
Salvia

D
Peepal

E
Commelina
Question 19
1 / -0

The food-storing tissue of flowers, which is formed by the fusion of male gamete and polar nuclei is called

A
endosperm

B
placenta

C
synergid

D
gametophyte

E
micropyle

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Pollination and Fertilization Test - 3

Result

Pollination and Fertilization Test - 3

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Rank

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SHARING IS CARING

Question 1

1n

2n

3n

4n

5n

Question 2

Homogamy

Heterogamy

Cleistogamy

Dichtyogamy

Protogyny

Question 3

Water

Wind

Insects

Bats

Birds

Question 4

homogamy

cleistogamy

herkogamy

dichogamy

heterogamy

Question 5

It preserves the parental characters indefinitely.

It leads to loss of vigour and vitality.

It leads to new varieties.

The genetic defects of the plant variety cannot be eliminated.

The flowers need not produce nectar and scent.

Question 6

It is a small structure contained in the ovary.

It is surrounded by integuments.

It has an opening to one side called micropyle.

It contains single polar nuclei.

It also contains two synergids and three antipodal cells.

Question 7

Maize

Castor

Cucumber

Salvia

Palm

Question 8

Salvia

Petunia

Butter cup

Pine

Dandelion

Question 9

It is not a source of variation in offsprings.

It is uncertain.

It occurs in unisexual and bisexual flowers.

Seeds produced are viable and healthier.

None of these

Question 10

Grass

Vallisneria

Hazel

Millow

Maize

Question 11

Gloriosa

Apple

Grapes

Salvia

Castor

Question 12

Pollen grains are produced in a large number.

Flowers are light in weight.

Flowers are small and inconspicuous.

Plants are monoecious.

Pollen grains have specific gravity equal to water.