Polyploidy level in endosperm of Triticum aestivum

Polyploidy level in endosperm of Triticum aestivum
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Haploid no. of Triticum aestivum

Description : Haploid no. of Triticum aestivum

Last Answer : Ans. n = 21

Polyploidy level in embryo and endosperm of seed

Description : Polyploidy level in embryo and endosperm of seed

Last Answer : Ans. 3n

In India maximum area under wheat is occupied by the Species? (A)Triticum aestivum (B) Triticum dicoccum (C) Triticum durum (D) Triticum vulgare

Description : In India maximum area under wheat is occupied by the Species? (A)Triticum aestivum (B) Triticum dicoccum (C) Triticum durum (D) Triticum vulgare

Last Answer : (A)Triticum aestivum

The centre of origin of Triticum aestivum is (A)Chilean centre (B) South Mexican centre (C) Mediterranean centre (D) Near eastern region

Description : The centre of origin of Triticum aestivum is (A)Chilean centre (B) South Mexican centre (C) Mediterranean centre (D) Near eastern region

Last Answer : (C) Mediterranean centre

Triticum aestivum is a (A) Border irrigation (B) Check basin irrigation (A) Hexaploid (B) Diploid (C) Tetraploid (D) Euploid

Description : Triticum aestivum is a (A) Border irrigation (B) Check basin irrigation (A) Hexaploid (B) Diploid (C) Tetraploid (D) Euploid

Last Answer : (A) Hexaploid

Triticum aestivum, the common bread wheat is – a) Tetraploid b) Hexaploid c) Haploid d) Diploid

Description : Triticum aestivum, the common bread wheat is – a) Tetraploid b) Hexaploid c) Haploid d) Diploid

Last Answer : b) Hexaploid

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

What is the scientific name of wheat? a. Zea mays b. Solanum melongana c. Sorghum vulgare d. Triticum e. None of these

Description : What is the scientific name of wheat? a. Zea mays b. Solanum melongana c. Sorghum vulgare d. Triticum e. None of these

Last Answer : c. Sorghum vulgare

Nucellar polyembryony is reported in species of (a) Citrus (b) Gossypium (c) Triticum (d) Brassica.

Description : Nucellar polyembryony is reported in species of (a) Citrus (b) Gossypium (c) Triticum (d) Brassica.

Last Answer : (a) Citrus

.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

$ Modern wheat is hexaploid. ! Polyploidy leads to the formation of new varieties.

Description : $ Modern wheat is hexaploid. ! Polyploidy leads to the formation of new varieties.

Last Answer : $ Modern wheat is hexaploid. ! Polyploidy leads to the formation of new varieties. A. If both As and R ... is wrong D. If both As and R are wrong.

Colchicines bring about: (a) Polyploidy (b) Cell division (c) Cell elongation (d) Cell differentiation

Description : Colchicines bring about: (a) Polyploidy (b) Cell division (c) Cell elongation (d) Cell differentiation

Last Answer : Ans. ((a))

Polyploidy arises due to change in the (1) number of chromatids (2) structure of genes (3) number of chromosomes (4) structure of chromosomes

Description : Polyploidy arises due to change in the (1) number of chromatids (2) structure of genes (3) number of chromosomes (4) structure of chromosomes

Last Answer : (3) number of chromosomes Explanation: An organism having more than two sets of homologous chromosomes is known as polyploid and the phenomenon polyploidy. Polyploidy refers to a numerical change in ... due to abnormal cell division, either during mitosis, or commonly during metaphase I in meiosis.

What is meant by polyploidy?

Description : What is meant by polyploidy?

Last Answer : The technique of developing polyploids is called polyploidy.

A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of cell plate and thus the cell is containing more number of chromosomes as compared to other dividing cells. This would result in (a) somaclonal variation (b) polyteny (c) aneuploidy (d) polyploidy.

Description : A cell at telophase stage is observed by a student in a plant brought from the field. He tells his teacher that this cell is not like other cells at telophase stage. There is no formation of ... cells. This would result in (a) somaclonal variation (b) polyteny (c) aneuploidy (d) polyploidy.

Last Answer : (d) polyploidy.

Polyploidy variety of Mango A) Vellaicollamban B) Olour C) Kurukkan D) All of the above

Description : Polyploidy variety of Mango A) Vellaicollamban B) Olour C) Kurukkan D) All of the above

Last Answer : D) All of the above

Polyploidy arises due to change in the (1) number of chromatids (2) structure of genes (3) number of chromosomes (4) structure of chromosomes

Description : Polyploidy arises due to change in the (1) number of chromatids (2) structure of genes (3) number of chromosomes (4) structure of chromosomes

Last Answer : number of chromosomes

Explain endosperm development in angiosperms. -Biology

Description : Explain endosperm development in angiosperms. -Biology

Last Answer : answer:

Name the hormone present in liquid endosperm of coconut? -Biology

Description : Name the hormone present in liquid endosperm of coconut? -Biology

Last Answer : answer:

Name the hormone present in liquid endosperm of coconut? -Biology

Description : Name the hormone present in liquid endosperm of coconut? -Biology

Last Answer : answer:

A diploid female plant and a tetraploid male plant are crossed. The ploidy of endosperm shall be

Description : A diploid female plant and a tetraploid male plant are crossed. The ploidy of endosperm shall be

Last Answer : A diploid female plant and a tetraploid male plant are crossed. The ploidy of endosperm shall be A. Tetraploid B. Triploid C. Diploid D. Pentaploid

$ Those plants which produce seeds, without the formation of fruits are called Gymnosperms. ! Endosperm is triploid in Angiospherms

Description : $ Those plants which produce seeds, without the formation of fruits are called Gymnosperms. ! Endosperm is triploid in Angiospherms

Last Answer : $ Those plants which produce seeds, without the formation of fruits are called Gymnosperms. ! Endosperm is ... D. If both As and R are wrong.

$ Double fertilization and triple fusion occurs in Angiosperms. ! Triple fusion produces triploid type of endosperm.

Description : $ Double fertilization and triple fusion occurs in Angiosperms. ! Triple fusion produces triploid type of endosperm.

Last Answer : $ Double fertilization and triple fusion occurs in Angiosperms. ! Triple fusion produces triploid type of endosperm ... D. If both As and R are wrong.

The seeds which have separate endosperm: (1) Maize (2) Onion (3) Rice (4) Bean

Description : The seeds which have separate endosperm: (1) Maize (2) Onion (3) Rice (4) Bean

Last Answer : Ans. ((a))

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))

Coir is the commercial product of coconuts: (a) Mesocarp (b) Pericarp (c) Endocarp (d) Endosperm

Description : Coir is the commercial product of coconuts: (a) Mesocarp (b) Pericarp (c) Endocarp (d) Endosperm

Last Answer : Ans. ((a))

Water of coconut is – (1) liquid nucellus (2) liquid rnesocarp (3) liquid endocarp (4) degenerated liquid endosperm

Description : Water of coconut is – (1) liquid nucellus (2) liquid rnesocarp (3) liquid endocarp (4) degenerated liquid endosperm

Last Answer : (4) degenerated liquid endosperm Explanation: Coconut water, the cleailiquid inside young green coconuts (fruits of the coconut palm), is liquid endosperm. In early development, it serves as a ... . It contains sugars, vitamins, minerals, proteins, free amino acids and growth promoting factors.

The nutritive tissue in the seeds of higher plants is known as - (1) hypocotyl (2) embryo (3) endosperm (4) nucellus

Description : The nutritive tissue in the seeds of higher plants is known as - (1) hypocotyl (2) embryo (3) endosperm (4) nucellus

Last Answer : (3) endosperm Explanation: The seed includes three primary regions: the embryo, nutritive tissue, and seed coat. Endosperm is a nutritive tissue that sustains the embryo and seedling. The endosperm may ... the embryo as in many legumes, which use the cotyledons as a food source during germination.

Which part of the cinchona yields a drug? (1) Pericarp (2) Bark (3) Endosperm (4) Leaf

Description : Which part of the cinchona yields a drug? (1) Pericarp (2) Bark (3) Endosperm (4) Leaf

Last Answer : (2) Bark Explanation: The bark of cinchona tree yields quinine, a white crystalline alkaloid having antipyretic (fever-reducing), anti-malarial, analgesic (painkilling), and anti-inflammatory properties. Quinine was the first effective Western treatment for malaria caused by Plasmodium falciparum.

When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is (a) tetraploidy (b) pentaploidy (c) diploidy (d) triploidy.

Description : When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is (a) tetraploidy (b) pentaploidy (c) diploidy (d) triploidy.

Last Answer : (a) tetraploidy

The nutritive tissue around the embryo in seed is a. Endosmosis b. Endodermis c. Endosperm d. Embryo-sac

Description : The nutritive tissue around the embryo in seed is a. Endosmosis b. Endodermis c. Endosperm d. Embryo-sac

Last Answer : Endosperm

Endosperm like tissue (2n) in seed developing from nucellus is : c. Endospem d. Cotyledom e. Perisperm f. Mericar

Description : Endosperm like tissue (2n) in seed developing from nucellus is : c. Endospem d. Cotyledom e. Perisperm f. Mericar

Last Answer : Perisperm

Perisperm is (a) remnant of endosperm (b) persistent nucellus (c) peripheral part of endosperm (d) disintegrated secondary nucleus.

Description : Perisperm is (a) remnant of endosperm (b) persistent nucellus (c) peripheral part of endosperm (d) disintegrated secondary nucleus.

Last Answer : (b) persistent nucellus

Embryo sac occurs in (a) embryo (b) axis part of embryo (c) ovule (d) endosperm.

Description : Embryo sac occurs in (a) embryo (b) axis part of embryo (c) ovule (d) endosperm.

Last Answer : (c) ovule

Albuminous seeds store their reserve food mainly in (a) endosperm (b) cotyledons (c) hypocotyl (d) perisperm.

Description : Albuminous seeds store their reserve food mainly in (a) endosperm (b) cotyledons (c) hypocotyl (d) perisperm.

Last Answer : (a) endosperm

102.Perisperm differs from endosperm in (a) being a diploid tissue (b) its formation by fusion of secondary nucleus with several sperms (c) being a haploid tissue (d) having no reserve food.

Description : 102.Perisperm differs from endosperm in (a) being a diploid tissue (b) its formation by fusion of secondary nucleus with several sperms (c) being a haploid tissue (d) having no reserve food.

Last Answer : (a) being a diploid tissue

Coconut water from a tender coconut is (a) innermost layers of the seed coat (b) degenerated nucellus (c) immature embryo (d) free nuclear endosperm

Description : Coconut water from a tender coconut is (a) innermost layers of the seed coat (b) degenerated nucellus (c) immature embryo (d) free nuclear endosperm

Last Answer : (d) free nuclear endosperm.

The coconut water from tender coconut represents (a) free nuclear proembryo (b) free nuclear endosperm (c) endocarp (d) fleshy mesocarp.

Description : The coconut water from tender coconut represents (a) free nuclear proembryo (b) free nuclear endosperm (c) endocarp (d) fleshy mesocarp.

Last Answer : (b) free nuclear endosperm

Which one of the following statements regarding post-fertilisation development in flowering plants is incorrect? (a) Ovules develop into embryo sac. (b) Ovary develops into fruit. (c) Zygote develops into embryo. (d) Central cell develops into endosperm

Description : Which one of the following statements regarding post-fertilisation development in flowering plants is incorrect? (a) Ovules develop into embryo sac. (b) Ovary develops into fruit. (c) Zygote develops into embryo. (d) Central cell develops into endosperm

Last Answer : (a) Ovules develop into embryo sac.

Which of the following pair have haploid structures? (a) Nucellus and antipodal cells (b) Antipodal cells and egg cell (c) Antipodal cells and megaspore mother cell (d) Nucellus and primary endosperm nucleus

Description : Which of the following pair have haploid structures? (a) Nucellus and antipodal cells (b) Antipodal cells and egg cell (c) Antipodal cells and megaspore mother cell (d) Nucellus and primary endosperm nucleus

Last Answer : (b) Antipodal cells and egg cell

The role of double fertilisation in angiosperms is to produce (a) cotyledons (b) endocarp (c) endosperm (d) integuments.

Description : The role of double fertilisation in angiosperms is to produce (a) cotyledons (b) endocarp (c) endosperm (d) integuments.

Last Answer : (c) endosperm

Endosperm is formed during the double fertilisation by (a) two polar nuclei and one male gamete (b) one polar nuclei and one male gamete (c) ovum and male gamete (d) two polar nuclei and two male gametes.

Description : Endosperm is formed during the double fertilisation by (a) two polar nuclei and one male gamete (b) one polar nuclei and one male gamete (c) ovum and male gamete (d) two polar nuclei and two male gametes.

Last Answer : (a) two polar nuclei and one male gamete

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

Oil reserve of groundnut is present in (a) embryo (b) cotyledons (c) endosperm (d) underground tubers

Description : Oil reserve of groundnut is present in (a) embryo (b) cotyledons (c) endosperm (d) underground tubers

Last Answer : (b) cotyledons

In groundnut the food/oil reserve is present in (a) epicarp (b) mesocarp (c) endosperm (d) cotyledons.

Description : In groundnut the food/oil reserve is present in (a) epicarp (b) mesocarp (c) endosperm (d) cotyledons.

Last Answer : (d) cotyledons.

Endosperm is consumed by developing embryo in the seed of (a) pea (b) maize (c) coconut (d) castor.

Description : Endosperm is consumed by developing embryo in the seed of (a) pea (b) maize (c) coconut (d) castor.

Last Answer : (a) pea

An example of a seed with endosperm, perisperm, and caruncle is (a) coffee (b) lily (c) castor (d) cotton

Description : An example of a seed with endosperm, perisperm, and caruncle is (a) coffee (b) lily (c) castor (d) cotton

Last Answer : (c) castor

The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons? (a) Cotyledon (b) Endosperm (c) Aleurone layer (d) Plumule

Description : The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons? (a) Cotyledon (b) Endosperm (c) Aleurone layer (d) Plumule

Last Answer : (a) Cotyledon

Which one of the following statements is correct? (a) In tomato, fruit is a capsule. (b) Seeds of orchids have oil-rich endosperm. (c) Placentation in primose is basal. (d) Flower of tulip is a modified shoot.

Description : Which one of the following statements is correct? (a) In tomato, fruit is a capsule. (b) Seeds of orchids have oil-rich endosperm. (c) Placentation in primose is basal. (d) Flower of tulip is a modified shoot.

Last Answer : (d) Flower of tulip is a modified shoot.