Which one of the following statements is correct? (a) Cleistogamous flowers are always autogamous. (b) Xenogamy occurs only by wind pollination. (c) Chasmogamous flowers do not open at all. (d) Geitonogamy involves the pollen and stigma of flowers of different plants.

Which one of the following statements is correct?
(a) Cleistogamous flowers are always autogamous.
(b) Xenogamy occurs only by wind pollination.
(c) Chasmogamous flowers do not open at all.
(d) Geitonogamy involves the pollen and stigma of
flowers of different plants.
by

1 Answer

Answer :

(a) Cleistogamous flowers are always autogamous.
by

Related questions

10. “Cleistogamous flowers are invariably autogamous because” (a) These flowers do not open at all. (b) There is no chance of cross – pollen landing on the stigma. (c) These flowers have exposed anthers and stigma. (d) These flowers are wind pollinated.

Description : 10. “Cleistogamous flowers are invariably autogamous because” (a) These flowers do not open at all. (b) There is no chance of cross – pollen landing on the stigma. (c) These flowers have exposed anthers and stigma. (d) These flowers are wind pollinated.

Last Answer : (a) These flowers do not open at all.

When pollen of a flower is transferred to the stigma of another flower of the same plant, the pollination is referred to as (a) autogamy (b) geitonogamy (c) xenogamy (d) allogamy.

Description : When pollen of a flower is transferred to the stigma of another flower of the same plant, the pollination is referred to as (a) autogamy (b) geitonogamy (c) xenogamy (d) allogamy.

Last Answer : b) geitonogamy

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called (a) xenogamy (b) geitonogamy (c) karyogamy (d) autogamy.

Description : Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called (a) xenogamy (b) geitonogamy (c) karyogamy (d) autogamy.

Last Answer : (b) geitonogamy

Which one of the following pollinations is autogamous? (a) Geitonogamy (b) Xenogamy (c) Chasmogamy (d) Cleistogamy

Description : Which one of the following pollinations is autogamous? (a) Geitonogamy (b) Xenogamy (c) Chasmogamy (d) Cleistogamy

Last Answer : (d) Cleistogamy

22. Assured seed set is by ... b) Geitonogamous flowers b) Chasmogamous flowers c) Cleistogamous flowers

Description : 22. Assured seed set is by ... b) Geitonogamous flowers b) Chasmogamous flowers c) Cleistogamous flowers

Last Answer : c) Cleistogamous flowers

2. Assured seed set is by ... a) Geitonogamous flowers b) Chasmogamous flowers c) Cleistogamous flowers d) Xenogamous flowers

Description : 2. Assured seed set is by ... a) Geitonogamous flowers b) Chasmogamous flowers c) Cleistogamous flowers d) Xenogamous flowers

Last Answer : c) Cleistogamous flowers

Which of the following statements is not correct? (a) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil. (b) Some reptiles have also been reported as pollinators in some plant species. (c) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style. (d) Insects that consume pollen or nectar without bringing about pollination are called pollen/ nectar robbers.

Description : Which of the following statements is not correct? (a) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil. (b) ... Insects that consume pollen or nectar without bringing about pollination are called pollen/ nectar robbers.

Last Answer : (c) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.

Unisexuality of flowers prevents (a) geitonogamy, but not xenogamy (b) autogamy and geitonogamy (c) autogamy, but not geitonogamy (d) both geitonogamy and xenogamy

Description : Unisexuality of flowers prevents (a) geitonogamy, but not xenogamy (b) autogamy and geitonogamy (c) autogamy, but not geitonogamy (d) both geitonogamy and xenogamy

Last Answer : (c) autogamy, but not geitonogamy

Consider the following statements about pollination. 1. Transfer of pollen grains from the anther to ovules in the same flower or a different f lower is called pollination. 2. The pollination by wind is called anemophily. 3. Pollination is a prerequisite for seed and fruit development in all flowering plants. 4. Seeds may develop in some water ferns without pollination. Which of the above statement/s is/are correct? (a) 1 and 3 (b) 1, 2 and 4 (c) Only 2 (d) 1, 2, 3 and 4

Description : Consider the following statements about pollination. 1. Transfer of pollen grains from the anther to ovules in the same flower or a different f lower is called pollination. 2. The pollination by wind is called anemophily. 3. Pollination is a ... 1 and 3 (b) 1, 2 and 4 (c) Only 2 (d) 1, 2, 3 and 4

Last Answer : Ans:(c)

What type of pollination takes place in Vallisneria? (a) Pollination occurs in submerged condition by water. (b) Flowers emerge above surface of water, and pollination occurs by insects. (c) Flowers emerge above water surface, and pollen is carried by wind. (d) Male flowers are carried by water currents to female flowers at surface of water.

Description : What type of pollination takes place in Vallisneria? (a) Pollination occurs in submerged condition by water. (b) Flowers emerge above surface of water, and pollination occurs by insects. (c) Flowers ... wind. (d) Male flowers are carried by water currents to female flowers at surface of water.

Last Answer : (d) Male flowers are carried by water currents to female flowers at surface of water

Which one of the following may require pollinators, but is genetically similar to autogamy? (a) Apogamy (b) Cleistogamy (c) Geitonogamy (d) Xenogamy

Description : Which one of the following may require pollinators, but is genetically similar to autogamy? (a) Apogamy (b) Cleistogamy (c) Geitonogamy (d) Xenogamy

Last Answer : (c) Geitonogamy

A dioecious flowering plant prevents both (a) autogamy and geitonogamy (b) geitonogamy and xenogamy (c) cleistogamy and xenogamy (d) autogamy and xenogamy.

Description : A dioecious flowering plant prevents both (a) autogamy and geitonogamy (b) geitonogamy and xenogamy (c) cleistogamy and xenogamy (d) autogamy and xenogamy.

Last Answer : (a) autogamy and geitonogamy

A dioecious flowering plant prevents both : (1) Autogamy and geitonogamy (2) Geitonogamy and xenogamy (3) Cleistogamy and xenogamy (4) Autogamy and xenogamy

Description : A dioecious flowering plant prevents both : (1) Autogamy and geitonogamy (2) Geitonogamy and xenogamy (3) Cleistogamy and xenogamy (4) Autogamy and xenogamy

Last Answer : (1) Autogamy and geitonogamy

Geitonogamy involves (a) fertilisation of a flower by the pollen from another flower of the same plant (b) fertilisation of a flower by the pollen from the same flower (c) fertilisation of a flower by the pollen from a flower of another plant in the same population (d) fertilisation of a flower by the pollen from a flower of another plant belonging to a distant population.

Description : Geitonogamy involves (a) fertilisation of a flower by the pollen from another flower of the same plant (b) fertilisation of a flower by the pollen from the same flower (c) fertilisation of a flower ... of a flower by the pollen from a flower of another plant belonging to a distant population.

Last Answer : (a) fertilisation of a flower by the pollen from another flower of the same plant

Geitonogamy involves:a)Fertilization of a flower by the pollen from a flower of another plant belonging to a distant population.b)Fertilization of a flower by the pollen from another flower of the same plant.c)Fertilization of a flower bythe pollen from the same flower.d)Fertilization of a flower by the pollen from a flower of another plant in the same population

Description : Geitonogamy involves:a)Fertilization of a flower by the pollen from a flower of another plant belonging to a distant population.b)Fertilization of a flower by the pollen from another flower of the same ... flower by the pollen from a flower of another plant in the same population

Last Answer : b)Fertilization of a flower by the pollen from another flower of the same plant

The floral part that receives pollen grains during pollination is - (1 ovary (2) style (3) stigma (4) ovules

Description : The floral part that receives pollen grains during pollination is - (1 ovary (2) style (3) stigma (4) ovules

Last Answer : (3) stigma Explanation: The stigma is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. The stigma receives pollen at pollination and it is on the stigma that the pollen grain germinates. The style connects the stigma to the ovary.

The transfer of pollen grains from anther to stigma is called; a) Fertilization b) pollination c) Microsporogenesis d) Polyembryony

Description : The transfer of pollen grains from anther to stigma is called; a) Fertilization b) pollination c) Microsporogenesis d) Polyembryony

Last Answer : Ans. b) Pollination

The floral part that receives pollen-grains during pollination is (1) ovary (2) style (3) stigma (4) ovules

Description : The floral part that receives pollen-grains during pollination is (1) ovary (2) style (3) stigma (4) ovules

Last Answer : stigma

In which one of thefollowing pollination is autogamous?a) Geitonogamyb) Xenogamyc) Chasmogamyd) Cleistogamy

Description : In which one of thefollowing pollination is autogamous?a) Geitonogamyb) Xenogamyc) Chasmogamyd) Cleistogamy

Last Answer : ) Cleistogamy

When pollen grains from an another falls on receptive stigma of the same flowers

Description : When pollen grains from an another falls on receptive stigma of the same flowers

Last Answer : Ans. Self pollination

What are cleistogamous flowers?

Description : What are cleistogamous flowers?

Last Answer : Ans: The flower which are always closed and shows autogamy is known as cleistogamous flower.

$ Pollination with the help of a pollen tube is called porogamy. ! Pollination occurs before meiosis of pollen mother cells.

Description : $ Pollination with the help of a pollen tube is called porogamy. ! Pollination occurs before meiosis of pollen mother cells.

Last Answer : $ Pollination with the help of a pollen tube is called porogamy. ! Pollination occurs before meiosis of ... wrong D. If both As and R are wrong.

First and the heaviest flower drop in fruit plants occurs due to : a. Structural defects in the flowers b. Lack of pollination c. Non fertilization d. All of the abov

Description : First and the heaviest flower drop in fruit plants occurs due to : a. Structural defects in the flowers b. Lack of pollination c. Non fertilization d. All of the abov

Last Answer : All of the abov

$ Flower of Rafflesia is largest sized. ! Large flowers have wind pollination

Description : $ Flower of Rafflesia is largest sized. ! Large flowers have wind pollination

Last Answer : $ Flower of Rafflesia is largest sized. ! Large flowers have wind pollination A. If both As and R are ... is wrong D. If both As and R are wrong.

Which one of the following statements is not true? (a) The flowers pollinated by flies and bats secrete foul odour to attract them. (b) Honey is made by bees by digesting pollen collected from flowers. (c) Pollen grains are rich in nutrients and they are used in the form of tablets and syrups. (d) Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.

Description : Which one of the following statements is not true? (a) The flowers pollinated by flies and bats secrete foul odour to attract them. (b) Honey is made by bees by digesting pollen collected ... . (d) Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.

Last Answer : (b) Honey is made by bees by digesting pollen collected from flowers.

Wind pollinated flowers are (a) small, brightly coloured, producing large number of pollen grains (b) small, producing large number of dry pollen grains (c) large producing abundant nectar and pollen (d) small, producing nectar and dry pollen

Description : Wind pollinated flowers are (a) small, brightly coloured, producing large number of pollen grains (b) small, producing large number of dry pollen grains (c) large producing abundant nectar and pollen (d) small, producing nectar and dry pollen

Last Answer : (b) small, producing large number of dry pollen grains

When pollen grains are transferred to the stigma? -Biology

Description : When pollen grains are transferred to the stigma? -Biology

Last Answer : answer:

When pollen is transferred from the anther to the stigma? -Biology

Description : When pollen is transferred from the anther to the stigma? -Biology

Last Answer : answer:

When pollen grains are transferred to the stigma? -Biology

Description : When pollen grains are transferred to the stigma? -Biology

Last Answer : answer:

When pollen is transferred from the anther to the stigma? -Biology

Description : When pollen is transferred from the anther to the stigma? -Biology

Last Answer : answer:

What happens after pollen lands on the stigma of a flower?

Description : What happens after pollen lands on the stigma of a flower?

Last Answer : Feel Free to Answer

The transfer of pollen grains from the an- ther to the stigma is called?

Description : The transfer of pollen grains from the an- ther to the stigma is called?

Last Answer : pollination

Anthesis is a phenomenon which refers to (a) reception of pollen by stigma (b) formation of pollen (c) development of anther (d) opening of flower bud.

Description : Anthesis is a phenomenon which refers to (a) reception of pollen by stigma (b) formation of pollen (c) development of anther (d) opening of flower bud.

Last Answer : (d) opening of flower bud.

Function of filiform apparatus is to (a) recognise the suitable pollen at stigma (b) stimulate division of generative cell (c) produce nectar (d) guide the entry of pollen tube.

Description : Function of filiform apparatus is to (a) recognise the suitable pollen at stigma (b) stimulate division of generative cell (c) produce nectar (d) guide the entry of pollen tube.

Last Answer : (d) guide the entry of pollen tube.

What part of the flower contains the pollen? a) Anther b) Stigma c) Leaves d) Stem

Description : What part of the flower contains the pollen? a) Anther b) Stigma c) Leaves d) Stem

Last Answer : a) Anther

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:a) Autogamyb) Xenogamyc) Geitonogamyd) Karyogamy

Description : Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:a) Autogamyb) Xenogamyc) Geitonogamyd) Karyogamy

Last Answer : c) Geitonogamy

The part of the flower that is adapted to catch pollen is the: a) stigma b) style c) anther d) ovule

Description : The part of the flower that is adapted to catch pollen is the: a) stigma b) style c) anther d) ovule

Last Answer : ANSWER: A -- STIGMA

A mechanism of self pollination in which flowers open but only after pollination has take place

Description : A mechanism of self pollination in which flowers open but only after pollination has take place

Last Answer : Ans. Chasmogamy

Which pollination reduces pollen loss ?

Description : Which pollination reduces pollen loss ?

Last Answer : Self pollination reduces pollen loss.

Where is the pollen transferred as a result of pollination ?

Last Answer : As a result of pollination, pollen is transferred to the cervix.

In gymnosperms, the pollen chamber represents (a) a cavity in the ovule in which pollen grains are stored after pollination (b) an opening in the megagametophyte through which the pollen tube approaches the egg(c) the microsporangium in which pollen grains develop (d) a cell in the pollen grain in which the sperms are formed.

Description : In gymnosperms, the pollen chamber represents (a) a cavity in the ovule in which pollen grains are stored after pollination (b) an opening in the megagametophyte through which the pollen tube approaches the ... pollen grains develop (d) a cell in the pollen grain in which the sperms are formed.

Last Answer : (c) the microsporangium in which pollen grains develop

In Angiosperms, during pollination, the pollen grains are mostly

Description : In Angiosperms, during pollination, the pollen grains are mostly

Last Answer : In Angiosperms, during pollination, the pollen grains are mostly – Bicellular

Flowers having stigma below the highest anthers are called _______: a. Apistigmatic b. Hypostigmatic c. Peristigmatic d. Exostimgatic

Description : Flowers having stigma below the highest anthers are called _______: a. Apistigmatic b. Hypostigmatic c. Peristigmatic d. Exostimgatic

Last Answer : Apistigmatic

Parthenocarpic tomato fruits can be producedby (a) treating the plants with phenylmercuric acetate (b) removing androecium of flowers before pollen grains are released (c) treating the plants with low concentrations of gibberellic acid and auxins (d) raising the plants from vernalized seeds

Description : Parthenocarpic tomato fruits can be producedby (a) treating the plants with phenylmercuric acetate (b) removing androecium of flowers before pollen grains are released (c) treating the plants with low concentrations of gibberellic acid and auxins (d) raising the plants from vernalized seeds

Last Answer : (c) treating the plants with low concentrations of gibberellic acid and auxins

The pollination between two different flowers present on same plant is called as

Description : The pollination between two different flowers present on same plant is called as

Last Answer : The pollination between two different flowers present on same plant is called as – Geitonogamy

In water hyacinth and water lily, pollination takes place by (a) insects or wind (b) water currents only (c) wind and water (d) insects and water

Description : In water hyacinth and water lily, pollination takes place by (a) insects or wind (b) water currents only (c) wind and water (d) insects and water

Last Answer : (a) insects or wind

Which of the following statements is correct relating to the auditor’s consideration of fraud? a. The auditor’s interest in fraud consideration relates to fraudulent acts that cause a material misstatement of financial statements. b. A primary factor that distinguishes fraud from error is that fraud is always intentional, while errors are generally, but not always, intentional. c. While an auditor should be aware of the possibility of fraud, management, and not the auditor, is responsible for detecting fraud. d. Fraud always involves a pressure or incentive to commit fraud, and a misappropriation of assets

Description : Which of the following statements is correct relating to the auditor's consideration of fraud? a. The auditor's interest in fraud consideration relates to fraudulent acts that cause a material ... d. Fraud always involves a pressure or incentive to commit fraud, and a misappropriation of assets

Last Answer : The auditor’s interest in fraud consideration relates to fraudulent acts that cause a material misstatement of financial statements.

A true breeding plant is (a) one that is able to breed on its own (b) produced due to cross-pollination among unrelated plants (c) near homozygous and produces offspring of its own kind (d) always homozygous recessive in its genetic constitution.

Description : A true breeding plant is (a) one that is able to breed on its own (b) produced due to cross-pollination among unrelated plants (c) near homozygous and produces offspring of its own kind (d) always homozygous recessive in its genetic constitution.

Last Answer : c) near homozygous and produces offspring of its own kind

In Bignonia eapreolata pollination is carried out by: (a) Bat (b) Bird (c) Insect (d) Wind

Description : In Bignonia eapreolata pollination is carried out by: (a) Bat (b) Bird (c) Insect (d) Wind

Last Answer : Ans. ((a))

Pollination by wind is called?

Description : Pollination by wind is called?

Last Answer : anemophily