Very long pollen with needle shaped structures are found in

Very long pollen with needle shaped structures are found in
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Very long pollen with needle shaped structures are found in – Zostera
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In a cell haploid chromosome number is 15. What number is found in Pollen grain, Zygote, Primary endosperm nucleus and Colchicine treated zygote.

Description : In a cell haploid chromosome number is 15. What number is found in Pollen grain, Zygote, Primary endosperm nucleus and Colchicine treated zygote. 

Last Answer : Ans: 15 in pollen grain, 30 in zygote, 45 in Primary Endosperm nucleus and 60 in colchicine treated zygote.

Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids

Description : Rod-shaped elongated thick-walled lignified dead cells found in seed coat of pulses (Legumes) are (a) Macrosciereids (b) Astrosclereids (c) Brachysclereids (d) Osteosclereids

Last Answer : Ans. ((a))

Dumbell shaped stomata are found in

Description : Dumbell shaped stomata are found in

Last Answer : Dumbell shaped stomata are found in – Members of family Poaceae

According the Korper Kappe thory the upright T-shaped division is found in

Description : According the Korper Kappe thory the upright T-shaped division is found in

Last Answer : According the Korper Kappe thory the upright T-shaped division is found in – Root cap region

Explain "Shimal Animal Pollen Flower" ?

Description : Explain "Shimal Animal Pollen Flower" ?

Last Answer : Animal flowers are usually fairly large. However, even though it is small, the flowers are decorated with inflorescences. Their colors are attractive. All these flowers may or may not have an odor. As these features are present in Shimul flower, Shimul flower is also an animal flower.

In angiosperm, triple fusion is necessary for the formation of: (a) Embryo (b) Pollen (c) Endosperm (d) Leaf

Description : In angiosperm, triple fusion is necessary for the formation of: (a) Embryo (b) Pollen (c) Endosperm (d) Leaf

Last Answer : Ans. ((c))

Haploid cells belong to: (a) Integument, pollen grain, endosperm (b) Embryo, endosperm and pollen grain (c) Megaspore, pollen grain, antipodal (d) Integument, pollen grain and antipodal

Description : Haploid cells belong to: (a) Integument, pollen grain, endosperm (b) Embryo, endosperm and pollen grain (c) Megaspore, pollen grain, antipodal (d) Integument, pollen grain and antipodal

Last Answer : Ans. ((c))

The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as

Description : The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as

Last Answer : The process involving emasculation of the flower before anthesis and depositing pollen grains on the cut end of the ovary is called as – Intra-ovarian pollination

When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as

Description : When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as

Last Answer : When embryosac receives two or more than two pollen tubes the sperm nucleus fusing with the egg nucleus may be derived from one pollen tube and one fusing with the polar nuclei may be derived from other pollen tube, the phenomenon is termed as – Heterofertilization

Effect of pollen grains on the properties of endosperms is called as

Description : Effect of pollen grains on the properties of endosperms is called as

Last Answer : Effect of pollen grains on the properties of endosperms is called as – Xenia

Before, germination of pollen, the moisture necessary for pollen hydration is provided by

Description : Before, germination of pollen, the moisture necessary for pollen hydration is provided by

Last Answer : Before, germination of pollen, the moisture necessary for pollen hydration is provided by – Stigma

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

Formation of 8-nucleate embryosac by pollen grains is also called as

Description : Formation of 8-nucleate embryosac by pollen grains is also called as

Last Answer : Formation of 8-nucleate embryosac by pollen grains is also called as – Nemec phenomenon 

Pollen embryoids were first developed by

Description : Pollen embryoids were first developed by

Last Answer : Pollen embryoids were first developed by – Guha and Maheshwari

Pollen grains of angiosperms are

Description : Pollen grains of angiosperms are

Last Answer : Pollen grains of angiosperms are – Partially developed male gametophyte

What is meant by Monosiphonous and Polysiphonous pollen grains? Give examples.

Description : What is meant by Monosiphonous and Polysiphonous pollen grains? Give examples. 

Last Answer : Ans: Pollen gains that form single pollen tube are monosiphonous. Ex: Solanum. Which form more than one pollen tubes are Polysiphonous. Ex: Malvaceae, Cucurbitaceae 

In hybridization this is not part of the technique used a) Transfer pollen b) Collect pollen c) Emasculate d) Use of two plants to bridge the stems together

Description : In hybridization this is not part of the technique used a) Transfer pollen b) Collect pollen c) Emasculate d) Use of two plants to bridge the stems together 

Last Answer : d) Use of two plants to bridge the stems together

A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte

Description : A fern differ from a moss in prossessing: (a) Swimming/flagellated anitherozoids (b) Flask-shaped archegonia (c) Independent Sporophyte (d) Independent gametophyte

Last Answer : Ans. ((c))

Pyramid of number in a grassland/true ecosystem is: (a) Always inverted (b) Always upright (c) Both (a) and (b) (d) Spindle-shaped

Description : Pyramid of number in a grassland/true ecosystem is: (a) Always inverted (b) Always upright (c) Both (a) and (b) (d) Spindle-shaped

Last Answer : Ans. ((b))

The ovule in which embryo sac become horse shoe shaped in: (a) Amphitropous (b) Camphylotropous (c) Orthotropous (d) Anatropous Ans. (a) ......................................................---------------------------......................................................................... BOTANY PRACTICE TEST SAMPLE QUESTIONS 1. Caruncle develops-from: (a) Outer integument (b) Ctyledon (c) Funiculus (d) Inner integuments

Description : The ovule in which embryo sac become horse shoe shaped in: (a) Amphitropous (b) Camphylotropous (c) Orthotropous (d) Anatropous Ans. (a) .................................. ... TEST SAMPLE QUESTIONS 1. Caruncle develops-from: (a) Outer integument (b) Ctyledon (c) Funiculus (d) Inner integuments

Last Answer : Ans. ((a))

Hormogonia are the vegetative reproductive structures of (a) Chlamydomonas (b) Spirogyra (c) Oscillatoria (d) Ulothrix

Description : Hormogonia are the vegetative reproductive structures of (a) Chlamydomonas (b) Spirogyra (c) Oscillatoria (d) Ulothrix

Last Answer : Ans. ((c))

A plant having two types of haploid structures in its life cycle is known as: (a) Haplobiontic (b) Diplobiontic (c) Haplontic (d) Diplontic

Description : A plant having two types of haploid structures in its life cycle is known as: (a) Haplobiontic (b) Diplobiontic (c) Haplontic (d) Diplontic

Last Answer : Ans. ((a))

Trichomes are the structures which are exclusively made up of

Description : Trichomes are the structures which are exclusively made up of

Last Answer : Trichomes are the structures which are exclusively made up of – Epidermis only

Why is the process of perspiration very important for plants ?

Description : Why is the process of perspiration very important for plants ?

Last Answer : As a result of perspiration, the plant gets rid of excess water pressure by expelling water from its body. Perspiration increases the concentration of juice in the cells. Increasing the ... maintains the moisture of the leaves. For this reason perspiration is very necessary for plants.

Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristic and/ or functions. (a) C - Medulla - inner zone of kidney and contains complete nephrons. (b) D - Cortex - outer part of kidney and do not contain any part of nephrons. (c) A - Adrenal gland - located at the anterior part of kidney. Secrete catecholamines which stimulate glycogen breakdown. (d) B - Pelvis - broad funnel shaped space inner to hilum, directly connected to loops of Henle

Description : Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristic and/ or functions. (a) C - Medulla - inner zone of ... B - Pelvis - broad funnel shaped space inner to hilum, directly connected to loops of Henle

Last Answer : (c) A - Adrenal gland - located at the anterior part of kidney. Secrete catecholamines which stimulate glycogen breakdown.

The balloon-shaped structures called tyloses (a) originate in the lumen of vessels (b) characterise the sapwood (c) are extensions of xylem parenchyma cells into vessels (d) are linked to the ascent of sap through xylem vessels.

Description : The balloon-shaped structures called tyloses (a) originate in the lumen of vessels (b) characterise the sapwood (c) are extensions of xylem parenchyma cells into vessels (d) are linked to the ascent of sap through xylem vessels.

Last Answer : (c) are extensions of xylem parenchyma cells into vessels

Which hormone is found in fruits, flowers, seeds, leaves and roots ?

Description : Which hormone is found in fruits, flowers, seeds, leaves and roots ?

Last Answer : Ethylene hormone is found in fruits, flowers, seeds, leaves and roots.

Inain is found in which tree ?

Description : Inain is found in which tree ?

Last Answer : : Inain is obtained from cinchona tree.

Consider the following statements: The genetic code said to be degenerate and universal which means that, (1) Amino afids may have more than one codon (2) All amino acids have mo than one codon (3) Codons are common for higher and lower organism (4) Codons are not found in bacteria

Description : Consider the following statements: The genetic code said to be degenerate and universal which means that, (1) Amino afids may have more than one codon (2) All amino acids have mo than one codon (3) Codons are common for higher and lower organism (4) Codons are not found in bacteria

Last Answer : Ans. ((d))

Consider the following statements: (1) Cucurbits are monoecious plant (2) In mango, neuter, male and female and female flowers occur together (3) Legumenous plants how unisexuality (4) Oblique septa is found in Rosaceae

Description : Consider the following statements: (1) Cucurbits are monoecious plant (2) In mango, neuter, male and female and female flowers occur together (3) Legumenous plants how unisexuality (4) Oblique septa is found in Rosaceae

Last Answer : Ans. ((b))

In the bacteria: (1) Mesosome is present (2) Nucleoid represents the genome (3) Ribosomes are found in cytoplasm (4) Histone proteins complexed with DNA

Description : In the bacteria: (1) Mesosome is present (2) Nucleoid represents the genome (3) Ribosomes are found in cytoplasm (4) Histone proteins complexed with DNA

Last Answer : Ans. ((a))

The hypogeal germination is found in: (a) Bean (b) Maize (c) Rhizophora (d) Cucurbita Ans. (b) Directions: In the following questions more than one answer given may be correct select the correct answers according to the code— Code— (a) 1, 2 and 3 are correct (b) 1 and 2 are correct (c) 1, 2 and 4 are correct (d) 1 and 3 are correct 26. Which of following matched correctly? (1) Piper—Climbing root (2) Ficus—Climbing root (3) Buttress root—Bombax (4) Vitis—Nodulated root

Description : The hypogeal germination is found in: (a) Bean (b) Maize (c) Rhizophora (d) Cucurbita Ans. (b) Directions: In the following questions more than one answer given may be correct select the correct ... (1) Piper-Climbing root (2) Ficus-Climbing root (3) Buttress root-Bombax (4) Vitis-Nodulated root

Last Answer : Ans. ((d))

Casparian strips are found in: (a) Periderm (b) Epidermis (c) Endodermis (d) Hypodermis

Description : Casparian strips are found in: (a) Periderm (b) Epidermis (c) Endodermis (d) Hypodermis

Last Answer : Ans. ((c))

Thick cuticle, sunken stomates are found in leaves of: (a) Hydrophytes (c) Mesophytes (b) Xerophytes (d) Epiphytes

Description : Thick cuticle, sunken stomates are found in leaves of: (a) Hydrophytes (c) Mesophytes (b) Xerophytes (d) Epiphytes

Last Answer : Ans. ((b))

Nucleotide found free in the cells is: (a) CAMP (b) AMP (c) ADP (d) ATP

Description : Nucleotide found free in the cells is: (a) CAMP (b) AMP (c) ADP (d) ATP

Last Answer : Ans. ((d))

Retort cells are found in: (a) Funaria (b) Pogonatum (c) Sphagnum (d) Porella

Description : Retort cells are found in: (a) Funaria (b) Pogonatum (c) Sphagnum (d) Porella

Last Answer : Ans. ((c))

Decot root having more than six vascular bundles are found in (a) Pea (b) Sunflower (c) Ficus (d) Ranunculus

Description : Decot root having more than six vascular bundles are found in (a) Pea (b) Sunflower (c) Ficus (d) Ranunculus

Last Answer : Ans. ((c))

In certain parts of India, muscular dystrophy is commonly found amongst the poor people because they eat cheap pulse from the plant (a) Pisum satiuvm (b) Lathyrus sativus (c) Cicer arietmum (d) Phaseolus mungo

Description : In certain parts of India, muscular dystrophy is commonly found amongst the poor people because they eat cheap pulse from the plant (a) Pisum satiuvm (b) Lathyrus sativus (c) Cicer arietmum (d) Phaseolus mungo

Last Answer : Ans. ((b))

Root cap is not found n: (a) Mesophytes (c) Hydrophytes (b) Xerophytes (d) Halophytes

Description : Root cap is not found n: (a) Mesophytes (c) Hydrophytes (b) Xerophytes (d) Halophytes

Last Answer : Ans. ((c))

Double fertilization is found in: (a) Bryophytes (b) Angiosperms (c) Gymnosperms (d) Pteridophytes

Description : Double fertilization is found in: (a) Bryophytes (b) Angiosperms (c) Gymnosperms (d) Pteridophytes

Last Answer : Ans. ((b))

Floridean starch is found in: (a) Chlorophyceae (b) Myxophyceae (c) Phaeophyceae (d) Rhodophyceae

Description : Floridean starch is found in: (a) Chlorophyceae (b) Myxophyceae (c) Phaeophyceae (d) Rhodophyceae

Last Answer : Ans. ((d))

Basal placentation is found in the family: (a) Malvaceae (b) Solanaceae (c) Fabaceae (d) Asteraceae

Description : Basal placentation is found in the family: (a) Malvaceae (b) Solanaceae (c) Fabaceae (d) Asteraceae

Last Answer : Ans. ((d))

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.

Cell sap is found inside a. Protoplasm b. Cytoplasm c. Nucleoplasm d. Vacuole

Description : Cell sap is found inside a. Protoplasm b. Cytoplasm c. Nucleoplasm d. Vacuole

Last Answer : d. Vacuole

Medullary vascular bundles are found in

Description : Medullary vascular bundles are found in

Last Answer : 3

In monocots showing secondary growth, the secondary vascular bundles are found embedded in

Description : In monocots showing secondary growth, the secondary vascular bundles are found embedded in

Last Answer : In monocots showing secondary growth, the secondary vascular bundles are found embedded in – Conjunctive tissue

Included phloem is found in

Description : Included phloem is found in

Last Answer : Included phloem is found in – Salvadora.

Inverted cortical vascular bundles are found in

Description : Inverted cortical vascular bundles are found in

Last Answer : Inverted cortical vascular bundles are found in – Nyctanthes stem

scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in

Description : scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in

Last Answer : scattered vascular bundles embedded in the ground tissue with no definite arrangement is found in – Stem of monocots

Helobial development of endosperms is found in

Description : Helobial development of endosperms is found in

Last Answer : Helobial development of endosperms is found in – Monocots