In Pinus pollination is........... a)anemophilous b)hydrophilons c)zoophilons d)cheriopterous.

In Pinus pollination is...........
a)anemophilous b)hydrophilons c)zoophilons d)cheriopterous.
by

1 Answer

Answer :

a)anemophilous
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Cross between hybrid and recessive parent is: (a) Back cross (b) Test cross (c) Monohybrid cross (d) Dihybrid cross Ans. (b) ................................................-----------------------------------------.................................................. PMT COACHING CLASSES (Zoology+Botany) – PMT, AIIMS, MBBS,lucknow 1. Largest egg of plant kingdom belongs to: (a) Cycas (b) Pinus (c) Psidium (d) Mangfera

Description : Cross between hybrid and recessive parent is: (a) Back cross (b) Test cross (c) Monohybrid cross (d) Dihybrid cross Ans. (b) ................................................----- ... - PMT, AIIMS, MBBS,lucknow 1. Largest egg of plant kingdom belongs to: (a) Cycas (b) Pinus (c) Psidium (d) Mangfera

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The species of Pinus, seeds of which are edible is/ chilgoza comes from: (a) P. roxburghii (b) P. gerardiand (c) P. monophylla (d) P. sylvestris

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What tissue present in leaves of Pinus conducts food and water laterally? (a) Transfusion tissue (b) Phloem (c) Xylem (d) Medullary rays

Description : What tissue present in leaves of Pinus conducts food and water laterally? (a) Transfusion tissue (b) Phloem (c) Xylem (d) Medullary rays

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Rubber is commercially obtained from: (a) Euphorbia (b) Betula (c) Hibiscus (d) Pinus

Description : Rubber is commercially obtained from: (a) Euphorbia (b) Betula (c) Hibiscus (d) Pinus

Last Answer : Ans. ((a))

Number of cotyledons in Zea mays, Cycas and Pinus respectively are: (a) 1, 2, 4 (b) 1, 2, many (c) 2, 2, many (d) 2, 1, 4

Description : Number of cotyledons in Zea mays, Cycas and Pinus respectively are: (a) 1, 2, 4 (b) 1, 2, many (c) 2, 2, many (d) 2, 1, 4

Last Answer : Ans. ((b))

The ovuliferous scale of Pinus is a part of ........... a) megasporophyll b) microsporophyll c) ovule d) dwarf shoot.

Description : The ovuliferous scale of Pinus is a part of ........... a) megasporophyll b) microsporophyll c) ovule d) dwarf shoot.

Last Answer : c) ovule

Which of the following species of Pinus has trifoliar spur…. a) P. sylvestris b) P. merkusii c) P. gerardiana ' d) P. wallichiana

Description : Which of the following species of Pinus has trifoliar spur…. a) P. sylvestris b) P. merkusii c) P. gerardiana ' d) P. wallichiana

Last Answer : c) P. gerardiana '

Which of the following species of Pinus is commonly known as chir pine ......... a) P. roxburghii b) P. wallichiana c) P. insularis d) P. gerardiana

Description : Which of the following species of Pinus is commonly known as chir pine ......... a) P. roxburghii b) P. wallichiana c) P. insularis d) P. gerardiana

Last Answer : a) P. roxburghii

Which of the following species of Pinus is not found in India ............. a) Pinus merkusii b) P. gerardiana c) P. wallichiana d) P. maritima.

Description : Which of the following species of Pinus is not found in India ............. a) Pinus merkusii b) P. gerardiana c) P. wallichiana d) P. maritima.

Last Answer : d) P. maritima.

The resin duct in Pinus stem represents a................ a)large vacuole b)intercellular space c)lysigenous cavity d)schizogenous cavity.

Description : The resin duct in Pinus stem represents a................ a)large vacuole b)intercellular space c)lysigenous cavity d)schizogenous cavity.

Last Answer : d)schizogenous cavity.

Cycadeoidea is also known as…. a)Lyginopteris b)Bennettites c) Pinus d)Gnetum

Description : Cycadeoidea is also known as…. a)Lyginopteris b)Bennettites c) Pinus d)Gnetum

Last Answer : b)Bennettites

Why Insects Are Called A Means Of Pollination ?

Description : Why Insects Are Called A Means Of Pollination ?

Last Answer : A means of insect pollination. Insects swarm around to eat honey or attract beautiful colors. At this time the pollen sticks to the carrier. Whenever this carrier sits on another flower of the same species ... to the head of the next flower. This is why insects are called the medium of pollination.

Why colorful flowers are helpful for pollination ?

Description : Why colorful flowers are helpful for pollination ?

Last Answer : Insects or birds float around in the attraction of the beautiful color of colorful flowers. At this time the pollen sticks to the carrier. When this carrier sits on another flower of the ... the work of pollination is done without their knowledge. So colored flowers are conducive to pollination.

What is the pollination of the flower head of a tree which is like glue and feathers ?

Description : What is the pollination of the flower head of a tree which is like glue and feathers ?

Last Answer : The pollination of the flower head of the tree is like glue and feathers.

What is the means of pollination ?

Description : What is the means of pollination ?

Last Answer : The carrier that carries pollen to the womb is called the medium of pollination.

What is post-pollination ?

Description : What is post-pollination ?

Last Answer : : Post-pollination or cross-pollination is when pollen is transferred from a pollinator by a medium or carrier and falls on the flower head of another tree of the same species.

What is self-pollination ?

Description : What is self-pollination ?

Last Answer : Self-pollination is when the pollen spontaneously transfers from the anther into the uterus of the same flower or any other flower of the same plant.

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))

In gymnosperms pollination is affected by......... a) water b)wind c)animals d)insects.

Description : In gymnosperms pollination is affected by......... a) water b)wind c)animals d)insects.

Last Answer : b)wind

Pollination through the agency of bats is called as

Description : Pollination through the agency of bats is called as

Last Answer : Pollination through the agency of bats is called as – Chieropterophily

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 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

Bisexual flowers are present in both Clerodendron and Scrophularia. Still cross pollination takes place. How?

Description : Bisexual flowers are present in both Clerodendron and Scrophularia. Still cross pollination takes place. How?

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Characteristics of anemophilous flowers with examples? -Biology

Description : Characteristics of anemophilous flowers with examples? -Biology

Last Answer : answer:

In anemophilous plants, pollens are disseminated by means of: a. Insects b. Water c. Wind d. Gravity

Description : In anemophilous plants, pollens are disseminated by means of: a. Insects b. Water c. Wind d. Gravity

Last Answer : Insects

My pinus nigra is loosing a lot of interior needles. Is it sick

Description : My pinus nigra is loosing a lot of interior needles. Is it sick

Last Answer : Need Answer

$ Hypnospores are the thick walled resting spores produced in some Algae. ! The megaspores of Pinus are also called hypnospores.

Description : $ Hypnospores are the thick walled resting spores produced in some Algae. ! The megaspores of Pinus are also called hypnospores.

Last Answer : $ Hypnospores are the thick walled resting spores produced in some Algae. ! The megaspores of Pinus are also ... wrong D. If both As and R are wrong.

Give the economic importance of Cycas and Pinus.

Description : Give the economic importance of Cycas and Pinus.

Last Answer : Give the economic importance of Cycas and Pinus.

Classify the following into gymnosperms and angiosperms. Wheat, pinus, bean, Cycas

Description : Classify the following into gymnosperms and angiosperms. Wheat, pinus, bean, Cycas

Last Answer : Pinus, Cycas – Gymnosperms Wheat, bean – Angiosperms

Give a detailed note on Pinus?

Description : Give a detailed note on Pinus? 

Last Answer : Habitat: - Pinus is found growing at an altitude of 5000-8000 feet. Structure: - i) It is sporophyte, evergreen and quite tall tree. ii) It consists of extensive root system and strong ... the plant. iv) When it matures the cones open and seeds are set free and dispersed. 

Besides paddy fields, cyanobacteria are also found inside vegetative part of (a) Equisetum (b) Psilotum (c) Pinus (d) Cycas

Description : Besides paddy fields, cyanobacteria are also found inside vegetative part of (a) Equisetum (b) Psilotum (c) Pinus (d) Cycas

Last Answer : (d) Cycas.

Which of the following tree is commonly used in the landscape of arid zone? a. Ficus benjamina b. Pethocelobium dulce c. Pinus longifolia d. Prosopis juliflora

Description : Which of the following tree is commonly used in the landscape of arid zone? a. Ficus benjamina b. Pethocelobium dulce c. Pinus longifolia d. Prosopis juliflora

Last Answer : Prosopis juliflora

Winged pollen grains are present in (a) mustard (b) Cycas (c) mango (d) Pinus

Description : Winged pollen grains are present in (a) mustard (b) Cycas (c) mango (d) Pinus

Last Answer : (d) Pinus.

Which one of the following plants is monoecious? (a) Pinus (b) Cycas (c) Papaya (d) Marchantia

Description : Which one of the following plants is monoecious? (a) Pinus (b) Cycas (c) Papaya (d) Marchantia

Last Answer : (a) Pinus

Which one of the following is monoecious? (a) Marchantia (b) Cycas (c) Pinus (d) Date palm

Description : Which one of the following is monoecious? (a) Marchantia (b) Cycas (c) Pinus (d) Date palm

Last Answer : (c) Pinus

Water containing cavities in vascular bundles are found in (a) sunflower (b) maize (c) Cycas (d) Pinus.

Description : Water containing cavities in vascular bundles are found in (a) sunflower (b) maize (c) Cycas (d) Pinus.

Last Answer : (b) maize

Chlorenchyma is known to develop in the (a) cytoplasm of Chlorella (b) mycelium of a green mould such as Aspergillus (c) spore capsule of a moss (d) pollen tube of Pinus.

Description : Chlorenchyma is known to develop in the (a) cytoplasm of Chlorella (b) mycelium of a green mould such as Aspergillus (c) spore capsule of a moss (d) pollen tube of Pinus.

Last Answer : (c) spore capsule of a moss

Chlorenchyma is known to develop in the (a) cytoplasm of Chlorella (b) mycelium of a green mould such as Aspergillus (c) spore capsule of a moss (d) pollen tube of Pinus.

Description : Chlorenchyma is known to develop in the (a) cytoplasm of Chlorella (b) mycelium of a green mould such as Aspergillus (c) spore capsule of a moss (d) pollen tube of Pinus.

Last Answer : (c) spore capsule of a moss

.Consider the following four statements whether they are correct or wrong. A. The sporophyte in liverworts is more elaborate than that in mosses. B. Salvinia is heterosporous. C. The life-cycle in all seed-bearing plants is diplontic. D. In Pinus, male and female cones are borne on different trees. The two wrong statements together are (a) A and C (b) A and D (c) B and C (d) A and B

Description : .Consider the following four statements whether they are correct or wrong. A. The sporophyte in liverworts is more elaborate than that in mosses. B. Salvinia is heterosporous. C. The life-cycle in all seed-bearing plants is diplontic ... are (a) A and C (b) A and D (c) B and C (d) A and B

Last Answer : (b) A and D

.Pinus differs from mango in having (a) tree habit (b) green leaves (c) ovules not enclosed in ovary (d) wood.

Description : .Pinus differs from mango in having (a) tree habit (b) green leaves (c) ovules not enclosed in ovary (d) wood.

Last Answer : (c) ovules not enclosed in ovary

Largest sperms in the plants world are found in (a) Banyan (b) Cycas (c) Thuja (d) Pinus.

Description : Largest sperms in the plants world are found in (a) Banyan (b) Cycas (c) Thuja (d) Pinus.

Last Answer : (b) Cycas

Which of the following plants produces seeds but not flowers? (a) Maize (b) Mint (c) Peepal (d) Pinus

Description : Which of the following plants produces seeds but not flowers? (a) Maize (b) Mint (c) Peepal (d) Pinus

Last Answer : (d) Pinus

.Which one pair of examples will correctly represent the grouping spermatophyta according to one of the schemes of classifying plants? (a) Acacia, sugarcane (b) Pinus, Cycas (c) Rhizopus, Triticum (d) Ginkgo, Pisum

Description : .Which one pair of examples will correctly represent the grouping spermatophyta according to one of the schemes of classifying plants? (a) Acacia, sugarcane (b) Pinus, Cycas (c) Rhizopus, Triticum (d) Ginkgo, Pisum

Last Answer : (d) Ginkgo, Pisum

Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms. (a) Perianth and two integuments (b) Embryo development and apical meristem (c) Absence of resin duct and leaf venation (d) Presence of vessel elements and absence of archegonia

Description : Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms. (a) Perianth and two integuments (b) Embryo development and ... of resin duct and leaf venation (d) Presence of vessel elements and absence of archegonia

Last Answer : (d) Presence of vessel elements and absence of archegonia

.Male and female gametophytes are independent and free-living in (a) mustard (b) castor (c) Pinus (d) Sphagnum.

Description : .Male and female gametophytes are independent and free-living in (a) mustard (b) castor (c) Pinus (d) Sphagnum.

Last Answer : (d) Sphagnum.

.In Pinus/Cycas/gymnosperms, the endosperm is (a) triploid (b) haploid (c) diploid (d) tetraploid.

Description : .In Pinus/Cycas/gymnosperms, the endosperm is (a) triploid (b) haploid (c) diploid (d) tetraploid.

Last Answer : (b) haploid

n Pinus/gymnosperms, the haploid structure are (a) megaspore, endosperm and embryo (b) megaspore, pollen grain and endosperm (c) megaspore, integument and root (d) pollen grain, leaf and root.

Description : n Pinus/gymnosperms, the haploid structure are (a) megaspore, endosperm and embryo (b) megaspore, pollen grain and endosperm (c) megaspore, integument and root (d) pollen grain, leaf and root.

Last Answer : (b) megaspore, pollen grain and endosperm

A plant in which sporophytic generation is represented by zygote is (a) Pinus (b) Selaginella (c) Chlamydomonas (d) Dryopteris

Description : A plant in which sporophytic generation is represented by zygote is (a) Pinus (b) Selaginella (c) Chlamydomonas (d) Dryopteris

Last Answer : (c) Chlamydomonas

.In Pinus, the pollen grain has 6 chromosomes then in its endosperm will have (a) 12 (b) 18 (c) 6 (d) 24.

Description : .In Pinus, the pollen grain has 6 chromosomes then in its endosperm will have (a) 12 (b) 18 (c) 6 (d) 24.

Last Answer : (c) 6

Resin and turpentine are obtained from (a) Cycas (b) Pinus (c) Cedrus (d) Abies.

Description : Resin and turpentine are obtained from (a) Cycas (b) Pinus (c) Cedrus (d) Abies.

Last Answer : (b) Pinus