A condition in which either pollen is absent or non functional in flowering plants.

A condition in which either pollen is absent or non functional in flowering plants.
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 Ans. Male Sterility
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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)

Plasma non-functional enzymes are (A) totally absent (B) low concentration in plastic (C) important for diagnosis of several disease (D) All of these

Description : Plasma non-functional enzymes are (A) totally absent (B) low concentration in plastic (C) important for diagnosis of several disease (D) All of these

Last Answer : Answer : D

The chemical used for inducing flowering in pineapple

Description : The chemical used for inducing flowering in pineapple

Last Answer : Ans. Ethrel and NAA

Anther or pollen culture technique is used to obtained

Description : Anther or pollen culture technique is used to obtained

Last Answer : Ans. Haploid plants

When pollen sterility is caused by cytoplasmic genes

Description : When pollen sterility is caused by cytoplasmic genes

Last Answer : Ans. Cytoplasmic Male Sterility (CMS)

Removal of the entire tassel (male inflorescence of maize) from the plant before pollen to initiate cross hybridization

Description : Removal of the entire tassel (male inflorescence of maize) from the plant before pollen to initiate cross hybridization

Last Answer : Ans. Detasseling

Pollen from a flower of one plant falls on the stigmas of other flowers of the same plant.

Description : Pollen from a flower of one plant falls on the stigmas of other flowers of the same plant.

Last Answer : Ans. Geitonogamy

When pollen grains from flower of one plant transferred to receptive stigmas of flowers of another plant

Description : When pollen grains from flower of one plant transferred to receptive stigmas of flowers of another plant

Last Answer : Ans. Cross pollination/Allogamy

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

Polyploidy level of testa and pollen mother cell of seed

Description : Polyploidy level of testa and pollen mother cell of seed

Last Answer : Ans. 2n

The horizon absent in arable land

Description : The horizon absent in arable land

Last Answer : Ans. ‘O’ horizon

In angiosperms, functional megaspore develops into (a) embryo sac (b) ovule (c) endosperm (d) pollen sac.

Description : In angiosperms, functional megaspore develops into (a) embryo sac (b) ovule (c) endosperm (d) pollen sac.

Last Answer : a) embryo sac

In angiosperms, functional megaspore develops into:a) Embryo sacb) Ovulec) Endospermd) Pollen sac

Description : Vegetative propagation is Pistiaoccurs bya) StIn angiosperms, functional megaspore develops into:a) Embryo sacb) Ovulec) Endospermd) Pollen sacolenb) Offsetc) Runnerd) Sucker

Last Answer : Embryo sac

Which is known as functional unit of life?

Description : Which is known as functional unit of life?

Last Answer : Ans. Cell

Total no. of functional nutrients

Description : Total no. of functional nutrients

Last Answer : Ans. 21 (Essential elements + Co, V, Si, Na)

Why Artificial Organisms Are Reproduced in Non-Flowering Plants ?

Description : Why Artificial Organisms Are Reproduced in Non-Flowering Plants ?

Last Answer : As the sexual reproduction of non-flowering plants is not complete, artificial reproduction is done.

What are the water conducting cells in non-flowering vascular plants know as?

Description : What are the water conducting cells in non-flowering vascular plants know as?

Last Answer : ANSWER: TRACHEIDS

Which one of the following features is absent in a virus? (1) reproduce within host cell (2) presence of cell wall (3) fully parasitic in nature (4) presence of either DNA or

Description : Which one of the following features is absent in a virus? (1) reproduce within host cell (2) presence of cell wall (3) fully parasitic in nature (4) presence of either DNA or

Last Answer : (2) presence of cell wall Explanation: A virus has a simple structure. It has no internal cellular structure, no cell wall or cell membrane, just the protein coat that holds the string of nucleic ... is a layer located outside the cell membrane found in plants, fungi, bacteria, algae, and archaea.

Which one of the following features is absent in a virus ? (1) reproduce within host cell (2) presence of cell wall (3) fully parasitic in nature (4) presence of either DNA or RNA

Description : Which one of the following features is absent in a virus ? (1) reproduce within host cell (2) presence of cell wall (3) fully parasitic in nature (4) presence of either DNA or RNA

Last Answer : presence of cell wall 

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

What is a pathological condition caused by absent or defective genes?

Description : What is a pathological condition caused by absent or defective genes?

Last Answer : That is the definition of a genetic disorder.

The lamina dura is absent in which condition: A. Von Recklinghausen B. Paget’s C. Periapical granuloma

Description : The lamina dura is absent in which condition: A. Von Recklinghausen B. Paget’s C. Periapical granuloma

Last Answer : B. Paget’s

A system where agriculture and forestry are practised either simultaneously or separately on the same unit of land

Description : A system where agriculture and forestry are practised either simultaneously or separately on the same unit of land

Last Answer : Ans. Agroforestry

The sum total condition in which organisms live is called as

Description : The sum total condition in which organisms live is called as

Last Answer : Ans. Environment

The best suited variety for drought condition

Description : The best suited variety for drought condition

Last Answer : Ans. Arka Vikas

The emergence and development of seedlings from the seed-embryo under favourable condition

Description : The emergence and development of seedlings from the seed-embryo under favourable condition

Last Answer : Ans. Germination

Instrument used for estimating ET under field condition

Description : Instrument used for estimating ET under field condition

Last Answer : Ans. Can Evaporimeter

A condition of atmosphere at a given place at a given time.

Description : A condition of atmosphere at a given place at a given time.

Last Answer : Ans. Weather

A weather condition over a given region during a longest period.

Description : A weather condition over a given region during a longest period.

Last Answer : Ans. Climate

Carrier is A. One or more conductors that serve as a common connection for a related group of devices B. a continuous frequency capableof being modulated or impressed witha second signal C. the condition whentwo or more sections attempt to use the same channel at the same time D. a collection of interconnected functional units that provides a data communications service among stations attached tothe network E. None of the above

Description : Carrier is A. One or more conductors that serve as a common connection for a related group of devices B. a continuous frequency capableof being modulated or impressed witha second signal C. ... that provides a data communications service among stations attached tothe network E. None of the above

Last Answer : a continuous frequency capableof being modulated or impressed witha second signa

Contention is A. One or more conductors that serve as a common connection for a related group of devices B. a continuous frequency capableof being modulated or impressed witha second signal C. the condition whentwo or more stations attempt to use the same channel at the same time D. a collection of interconnected functional units that provides a data communications service among stations attached tothe network E. None of the above

Description : Contention is A. One or more conductors that serve as a common connection for a related group of devices B. a continuous frequency capableof being modulated or impressed witha second signal C. ... that provides a data communications service among stations attached tothe network E. None of the above

Last Answer : the condition whentwo or more stations attempt to use the same channel at the same time

What are the small orange spiders on my flowering plants?

Description : What are the small orange spiders on my flowering plants?

Last Answer : Need Answer

Please help me find a list of scientific names for flowering plants?

Description : Please help me find a list of scientific names for flowering plants?

Last Answer : on your internet browser ask this question List of scientific names for garden plants that have flowers.

I have beautiful large, flowering zuc and pumpkin plants but they wont start fruit? anyway to make that happen?

Description : I have beautiful large, flowering zuc and pumpkin plants but they wont start fruit? anyway to make that happen?

Last Answer : You probably have male flowers and few if any female flowers. Female flowers have what appears to be the beginnings of the fruit back behind the flower. Male flowers have pointy protrusion in the ... take the sticky pollen from the male flower and deposit it in the center of the female flower.

What are some pretty flowering plants for my yard, to be planted now in Northern Utah?

Description : What are some pretty flowering plants for my yard, to be planted now in Northern Utah?

Last Answer : Need Answer

tips of leaves on my flowering plants are black, too much water?

Description : tips of leaves on my flowering plants are black, too much water?

Last Answer : Need Answer

What is the best weed killer to use for veggies and flowers/flowering plants?

Description : What is the best weed killer to use for veggies and flowers/flowering plants?

Last Answer : No, what you are asking for does not yet exist. But you can try a weed barrier cloth for your flower beds, but it is not recommended for your garden. -Birdy

What flowering plants will thrive in clay soil?

Description : What flowering plants will thrive in clay soil?

Last Answer : Need Answer

What are the various types of placentation in flowering plants? -Biology

Description : What are the various types of placentation in flowering plants? -Biology

Last Answer : answer:

What is triple fusion in flowering plants? -Biology

Description : What is triple fusion in flowering plants? -Biology

Last Answer : answer:

Name the male and female gametophytes in flowering plants -Biology

Description : Name the male and female gametophytes in flowering plants -Biology

Last Answer : answer:

Name the male and female gametophytes in flowering plants -Biology

Description : Name the male and female gametophytes in flowering plants -Biology

Last Answer : answer:

Which component of plants receives stimulus for flowering? -Do You Know?

Description : Which component of plants receives stimulus for flowering? -Do You Know?

Last Answer : answer:

what are the functions of pistil and stamon in flowering plants?

Description : what are the functions of pistil and stamon in flowering plants?

Last Answer : school is boring and $h#++y

Name two monocarpic plants which show gregarious flowering.

Description : Name two monocarpic plants which show gregarious flowering.

Last Answer : Answer: Bambusa tulda, Melocanna bambusoides.

Where does meiosis occur in flowering plants ?

Description : Where does meiosis occur in flowering plants ?

Last Answer : Miosis occurs in pollen plants in flowering plants.

Impotance of day length ( photoperiodism ) in flowering of plants was first shown in

Description : Impotance of day length ( photoperiodism ) in flowering of plants was first shown in

Last Answer : Impotance of day length ( photoperiodism ) in flowering of plants was first shown in A. Cotton B. Petunia C. Lemna D. Tobacco

Are some flowering plants normally a color other than green If so do these plants contain chlorophyll?

Description : Are some flowering plants normally a color other than green If so do these plants contain chlorophyll?

Last Answer : Need answer

How are flowering plants and nonflowering plants alike?

Description : How are flowering plants and nonflowering plants alike?

Last Answer : Nonflowering Spore Plants. Mosses and ferns are the other two major types of plants that do not grow flowers. Mosses and ferns reproduce by spores instead of seeds.

In flowering plants the fertilized egg cell becomes a .?

Description : In flowering plants the fertilized egg cell becomes a .?

Last Answer : What is the answer ?