Give the economic importance of Cycas and Pinus.

Give the economic importance of Cycas and Pinus.
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Give the economic importance of Cycas and Pinus.
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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

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))

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

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.

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

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 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

.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

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

Transfusion tissue is present in the leaves of (a) Pinus (b) Dryopteris (c) Cycas (d) both (a) and (c).

Description : Transfusion tissue is present in the leaves of (a) Pinus (b) Dryopteris (c) Cycas (d) both (a) and (c).

Last Answer : (d) both (a) and (c).

Which one of the following is categorised under living fossils? (a) Pinus (b) Cycas (c) Selaginella (d) Metasequoia

Description : Which one of the following is categorised under living fossils? (a) Pinus (b) Cycas (c) Selaginella (d) Metasequoia

Last Answer : (b) Cycas

Select the mismatch. (a) Cycas – Dioecious (b) Salvinia – Heterosporous (c) Equisetum – Homosporous (d) Pinus – Dioecious

Description : Select the mismatch. (a) Cycas – Dioecious (b) Salvinia – Heterosporous (c) Equisetum – Homosporous (d) Pinus – Dioecious

Last Answer : (d) Pinus – Dioecious

Select the mismatch (1) Cycas – Dioecious (2) Salvinia – Heterosporous (3) Equisetum – Homosporous (4) Pinus – Dioecious

Description : Select the mismatch (1) Cycas – Dioecious (2) Salvinia – Heterosporous (3) Equisetum – Homosporous (4) Pinus – Dioecious

Last Answer : (4) Pinus – Dioecious

Winged pollen grains are present in (1) Mustard (2) Cycas (3) Mango (4) Pinus

Description : Winged pollen grains are present in (1) Mustard (2) Cycas (3) Mango (4) Pinus

Last Answer : (4) Pinus

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. 

Give the economic importance of molluscs.

Description : Give the economic importance of molluscs.

Last Answer : Give the economic importance of molluscs.

gymnosperms are heterosporus. but Cycas bears both male and female on one tree. how? -Biology

Description : gymnosperms are heterosporus. but Cycas bears both male and female on one tree. how? -Biology

Last Answer : answer:

gymnosperms are heterosporus. but Cycas bears both male and female on one tree. how? -Biology

Description : gymnosperms are heterosporus. but Cycas bears both male and female on one tree. how? -Biology

Last Answer : answer:

$ Formation of motile gametes occurs in Red Algae. ! Motile gametes in Cycas are muticiliated.

Description : $ Formation of motile gametes occurs in Red Algae. ! Motile gametes in Cycas are muticiliated.

Last Answer : $ Formation of motile gametes occurs in Red Algae. ! Motile gametes in Cycas are muticiliated. A. If both ... is wrong D. If both As and R are wrong.

Which of the following shows heterothallism? (a) Rhizopus (b) Cycas (c) Bacterium (d) Ricinus

Description : Which of the following shows heterothallism? (a) Rhizopus (b) Cycas (c) Bacterium (d) Ricinus

Last Answer : Ans. ((a))

Which one of the following is the earliest land plant? (a) Rhynia (b) Cycas (c) Ulothrix (d) Synchytrium

Description : Which one of the following is the earliest land plant? (a) Rhynia (b) Cycas (c) Ulothrix (d) Synchytrium

Last Answer : Ans. ((a))

The best example of Polyembryony is (1) Cocoa (2) Capsicum (3) Citrus (4) Cycas

Description : The best example of Polyembryony is (1) Cocoa (2) Capsicum (3) Citrus (4) Cycas

Last Answer : (3) Citrus Explanation: In citrus fruits such as oranges, the nuclear cells that surround the embryo start dividing and protrude into the embryo sac. These develop into embryos; thus resulting in the presence of more than one embryo inside each ovule. This condition is known as polyembryony.

Commercially valued cork is obtained from - (1) Quercus spp (2) Cedrus Deodara (3) Ficus (4) Cycas

Description : Commercially valued cork is obtained from - (1) Quercus spp (2) Cedrus Deodara (3) Ficus (4) Cycas

Last Answer : (1) Quercus spp Explanation: Cork is a prime-subset of bark tissue that is harvested for commercial use primarily from Quercus suber. It is endemic to the Mediterranean region. Cork is composed of ... , and fire retardant properties, it is used in a variety of products, such as wine stoppers.

Which one of the following is an indicator of air pollution? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Description : Which one of the following is an indicator of air pollution? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Last Answer : (4) Lichens Explanation: Lichens are an indicator of air pollution.

A prokaryotic autotrophic nitrogen fixing symbiont is found in (a) Alnus (b) Cycas (c) Cicer (d) Pisum.

Description : A prokaryotic autotrophic nitrogen fixing symbiont is found in (a) Alnus (b) Cycas (c) Cicer (d) Pisum.

Last Answer : (b) Cycas

Oxygen is not produced during photosynthesis by (a) Green sulphur bacteria (b) Nostoc (c) Cycas (d) Chara.

Description : Oxygen is not produced during photosynthesis by (a) Green sulphur bacteria (b) Nostoc (c) Cycas (d) Chara.

Last Answer : (a) Green sulphur bacteria

Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism? (a) Crotalaria juncea (b) Cycas revoluta (c) Cicer arietinum (d) Casuarina equisetifolia

Description : Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing microorganism? (a) Crotalaria juncea (b) Cycas revoluta (c) Cicer arietinum (d) Casuarina equisetifolia

Last Answer : (d) Casuarina equisetifolia

Which one has the largest gametophyte? (a) Cycas (b) Angiosperm (c) Selaginella (d) Moss

Description : Which one has the largest gametophyte? (a) Cycas (b) Angiosperm (c) Selaginella (d) Moss

Last Answer : (d) Moss

Which one of the following statements about Cycas is incorrect? (a) It has circinate vernation. (b) Its xylem is mainly composed of xylem vessel. (c) Its roots contain some blue-green algae. (d) It does not have a well organized female flower.

Description : Which one of the following statements about Cycas is incorrect? (a) It has circinate vernation. (b) Its xylem is mainly composed of xylem vessel. (c) Its roots contain some blue-green algae. (d) It does not have a well organized female flower.

Last Answer : (b) Its xylem is mainly composed of xylem vessel.

Cycas has two cotyledons but not included in angiosperms because of (a) naked ovules (b) seems like monocot (c) circinate ptyxis (d) compound leaves.

Description : Cycas has two cotyledons but not included in angiosperms because of (a) naked ovules (b) seems like monocot (c) circinate ptyxis (d) compound leaves.

Last Answer : (a) naked ovules

Which one of the following is a living fossil? (a) Cycas (b) Moss (c) Saccharomyces (d) Spirogyra

Description : Which one of the following is a living fossil? (a) Cycas (b) Moss (c) Saccharomyces (d) Spirogyra

Last Answer : (a) Cycas

Flagellated male gametes are present in all the three of which one of the following sets? (a) Zygnema, Saprolegnia and Hydrilla (b) Fucus, Marsilea and Calotropis (c) Riccia, Dryopteris and Cycas (d) Anthoceros, Funaria and Spirogyra

Description : Flagellated male gametes are present in all the three of which one of the following sets? (a) Zygnema, Saprolegnia and Hydrilla (b) Fucus, Marsilea and Calotropis (c) Riccia, Dryopteris and Cycas (d) Anthoceros, Funaria and Spirogyra

Last Answer : (c) Riccia, Dryopteris and Cycas

Cycas and Adiantum resemble each other in having (a) seeds (b) motile sperms (c) cambium (d) vessels.

Description : Cycas and Adiantum resemble each other in having (a) seeds (b) motile sperms (c) cambium (d) vessels.

Last Answer : (b) motile sperms

Read the following five statements (A to E) and select the option with all correct statements. A. Mosses and lichens are the first organisms to colonise a bare rock. B. Selaginella is a homosporous pteridophyte. C. Coralloid roots in Cycas have VAM. D. Main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic. E. In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte. (a) A, D and E (b) B, C and E (c) A, C and D (d) B, C and D

Description : Read the following five statements (A to E) and select the option with all correct statements. A. Mosses and lichens are the first organisms to colonise a bare rock. B. Selaginella is a homosporous pteridophyte. C. Coralloid roots in Cycas ... D and E (b) B, C and E (c) A, C and D (d) B, C and D

Last Answer : (a) A, D and E

Which of the following statements is correct? (a) Ovules are not enclosed by ovary wall in gymnosperms. (b) Selaginella is heterosporous, while Salvinia is homosporous. (c) Horsetails are gymnosperms. (d) Stems are usually unbranched in both Cycas and Cedrus.

Description : Which of the following statements is correct? (a) Ovules are not enclosed by ovary wall in gymnosperms. (b) Selaginella is heterosporous, while Salvinia is homosporous. (c) Horsetails are gymnosperms. (d) Stems are usually unbranched in both Cycas and Cedrus.

Last Answer : (a) Ovules are not enclosed by ovary wall in gymnosperms.

Which of the following plants is referred to as a living fossil? a. Ephedra b. Cycas c. Gingko d. Adiantum

Description : Which of the following plants is referred to as a living fossil? a. Ephedra b. Cycas c. Gingko d. Adiantum

Last Answer : c. Gingko

______ helps in fixation of nitrogen in rice field in association with root of Cycas plant. a) rhizobium b)fungus c)cyano bacteria d)bacteria

Description : ______ helps in fixation of nitrogen in rice field in association with root of Cycas plant. a) rhizobium b)fungus c)cyano bacteria d)bacteria

Last Answer : c)cyano bacteria

Oxygen is not produced during photosynthesis by (1) Green sulphur bacteria (2) Nostoc (3) Cycas (4) Chara

Description : Oxygen is not produced during photosynthesis by (1) Green sulphur bacteria (2) Nostoc (3) Cycas (4) Chara

Last Answer : (1) Green sulphur bacteria

Which of the following statement is correct ? (1) Ovules are not enclosed by ovary wall in gymnosperms (2) Selaginella is heterosporous, while Salvinia is homosporous (3) Horsetails are gymnosperms (4) Stems are usually unbranched in both Cycas and Cedrus

Description : Which of the following statement is correct ? (1) Ovules are not enclosed by ovary wall in gymnosperms (2) Selaginella is heterosporous, while Salvinia is homosporous (3) Horsetails are gymnosperms (4) Stems are usually unbranched in both Cycas and Cedrus

Last Answer : (1) Ovules are not enclosed by ovary wall in gymnosperms

Cycas and Adiantum resemble each other in having (1) Vessels (2) Seeds (3) Motile Sperms (4) Cambium

Description : Cycas and Adiantum resemble each other in having (1) Vessels (2) Seeds (3) Motile Sperms (4) Cambium

Last Answer : (3) Motile Sperms

Commercially valued cork is obtained from : (1) Quercus spp (2) Cedrus Deodara (3) Ficus (4) Cycas

Description : Commercially valued cork is obtained from : (1) Quercus spp (2) Cedrus Deodara (3) Ficus (4) Cycas

Last Answer : Quercus spp

‘Coralloid root’ of Cycas helps in (1) Absorption of water (2) Absorption of water and fixation of Nitrogen (3) Anchorage (4) Transport of food

Description : ‘Coralloid root’ of Cycas helps in (1) Absorption of water (2) Absorption of water and fixation of Nitrogen (3) Anchorage (4) Transport of food

Last Answer : Absorption of water and fixation of Nitrogen

The best example of Polyembryony is (1) Cocoa (2) Capsicum (3) Citrus (4) Cycas

Description : The best example of Polyembryony is (1) Cocoa (2) Capsicum (3) Citrus (4) Cycas 

Last Answer : Citrus

Which one of the following is an indicator of air pollution ? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Description : Which one of the following is an indicator of air pollution ? (1) Cycas (2) Algae (3) Bryophytes (4) Lichens

Last Answer : Lichens

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.