In gymnosperms, the male gametes are produced in structures called

In gymnosperms, the male gametes are produced in structures called
by

1 Answer

Answer :

microsporophyll.
by

Related questions

In gymnosperms, the female gametes are produced in structures called

Description : In gymnosperms, the female gametes are produced in structures called

Last Answer : megasporophyll.

Where are Male gametes are produced?

Description : Where are Male gametes are produced?

Last Answer : Need answer

The reproductive structures in gymnosperms are

Description : The reproductive structures in gymnosperms are

Last Answer : cones.

which structures were required for the evolution of the ferns and gymnosperms? -General Knowledge

Description : which structures were required for the evolution of the ferns and gymnosperms? -General Knowledge

Last Answer : Megaphylls and vascular tissue were required for the evolution of the ferns and gymnosperms.

which of the following structures are found in gymnosperms but not in angiosperms? -General Knowledge

Description : which of the following structures are found in gymnosperms but not in angiosperms? -General Knowledge

Last Answer : Cones are found in gymnosperms but not in angiosperms.

The independent structure developed in pteridophytes which produces male and female gametes is

Description : The independent structure developed in pteridophytes which produces male and female gametes is

Last Answer : Prothallus.

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:

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

In tobacco plant, the male gametes have twenty four chromosomes. What is the number of chromosomes in the female gamete? What is the number of chromosomes in the zygote? -Biology

Description : In tobacco plant, the male gametes have twenty four chromosomes. What is the number of chromosomes in the female gamete? What is the number of chromosomes in the zygote? -Biology

Last Answer : The number of chromosome in the female gamete would be same as that in the male gamete, i.e., it will have 24 chromosomes. The number of chromosome in the zygote would be double the number present in the gamete and hence, it would be 48.

In bryophytes and pteridophytes, transport of male gametes requires

Description : In bryophytes and pteridophytes, transport of male gametes requires

Last Answer : In bryophytes and pteridophytes, transport of male gametes requires (A) Birds (B) Water (C) Wind (D) Insects

How are male and female gametes production different?

Description : How are male and female gametes production different?

Last Answer : In males 4 sperms are produced from one cell while in female 1egg and 3 polar bodies are produced in mammals .

What are the reproductive organs that produce gametes in both male and female?

Description : What are the reproductive organs that produce gametes in both male and female?

Last Answer : That would be the Gonads.

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, pollen tube liberate their male gametes into the (a) central cell (b) antipodal cells (c) egg cell (d) synergids.

Description : In angiosperms, pollen tube liberate their male gametes into the (a) central cell (b) antipodal cells (c) egg cell (d) synergids.

Last Answer : d) synergids.

Double fertilisation is (a) fusion of two male gametes of a pollen tube with two different eggs (b) fusion of one male gamete with two polar nuclei (c) fusion of two male gametes with one egg (d) syngamy and triple fusion.

Description : Double fertilisation is (a) fusion of two male gametes of a pollen tube with two different eggs (b) fusion of one male gamete with two polar nuclei (c) fusion of two male gametes with one egg (d) syngamy and triple fusion.

Last Answer : (d) syngamy and triple fusion.

What is the fate of the male gametes discharged in the synergid? (a) One fuses with the egg and other fuses with central cell nuclei. (b) One fuses with the egg, other(s) degenerates in the synergid. (c) All fuse with the egg. (d) One fuses with the egg, other(s) fuse(s) with synergid nucleus.

Description : What is the fate of the male gametes discharged in the synergid? (a) One fuses with the egg and other fuses with central cell nuclei. (b) One fuses with the egg, other(s) degenerates in the synergid. (c) All fuse with the egg. (d) One fuses with the egg, other(s) fuse(s) with synergid nucleus.

Last Answer : (a) One fuses with the egg and other fuses with central cell nuclei.

Male gametes in angiosperms are formed by the division of (a) generative cell (b) vegetative cell (c) microspore mother cell (d) microspore.

Description : Male gametes in angiosperms are formed by the division of (a) generative cell (b) vegetative cell (c) microspore mother cell (d) microspore.

Last Answer : (a) generative cell

What is the function of germ pore? (a) Emergence of radicle (b) Absorption of water for seed germination (c) Initiation of pollen tube (d) Release of male gametes

Description : What is the function of germ pore? (a) Emergence of radicle (b) Absorption of water for seed germination (c) Initiation of pollen tube (d) Release of male gametes

Last Answer : (c) Initiation of pollen tube

The plant parts which consist of two generations- one within the other (1) pollen grains inside the anther (2) germinated pollen grain with two male gametes (3) seed inside the fruit (4) embryo sac inside the ovule (a) (1) only (b) (1), (2), and (3) (c) (3) and (4)

Description : The plant parts which consist of two generations- one within the other (1) pollen grains inside the anther (2) germinated pollen grain with two male gametes (3) seed inside the fruit (4) embryo sac inside the ovule (a) (1) only (b) (1), (2), and (3) (c) (3) and (4)

Last Answer : (d) (1) and (4).

Erythroblastosis fetalis is caused when fertilisation takes place between gametes of (a) Rh– female and Rh+ male (b) Rh+ female and Rh– male (c) Rh+ female and Rh+ male (d) Rh– female and Rh– male.

Description : Erythroblastosis fetalis is caused when fertilisation takes place between gametes of (a) Rh– female and Rh+ male (b) Rh+ female and Rh– male (c) Rh+ female and Rh+ male (d) Rh– female and Rh– male.

Last Answer : (a) Rh– female and Rh+ male

Top-shaped multiciliate male gametes and the mature seed which bears only one embryo with two cotyledons, are characterised features of (a) cycads (b) conifers (c) polypetalous angiosperms (d) gamopetalous angiosperms.

Description : Top-shaped multiciliate male gametes and the mature seed which bears only one embryo with two cotyledons, are characterised features of (a) cycads (b) conifers (c) polypetalous angiosperms (d) gamopetalous angiosperms.

Last Answer : (a) cycads

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

In bryophytes and pteridophytes, transport of male gametes requires (a) birds (b) water (c) wind (d) insects

Description : In bryophytes and pteridophytes, transport of male gametes requires (a) birds (b) water (c) wind (d) insects

Last Answer : (b) water

Male gametes are flagellated in (a) Ectocarpus (b) Spirogyra (c) Polysiphonia (d) Anabaena

Description : Male gametes are flagellated in (a) Ectocarpus (b) Spirogyra (c) Polysiphonia (d) Anabaena

Last Answer : (a) Ectocarpus

Double fertilization is (1) Fusion of two male gametes of a pollen tube with two different eggs (2) Fusion of one male gamete with two polar nuclei (3) Fusion of two male gametes with one egg (4) Syngamy and triple fusion

Description : Double fertilization is (1) Fusion of two male gametes of a pollen tube with two different eggs (2) Fusion of one male gamete with two polar nuclei (3) Fusion of two male gametes with one egg (4) Syngamy and triple fusion

Last Answer : (4) Syngamy and triple fusion

Which of the following is not a characteristic of coniferales........ a)pycnoxylic wood b)motile male gametes c)presence of resin canal d) fertilization siphonogamous

Description : Which of the following is not a characteristic of coniferales........ a)pycnoxylic wood b)motile male gametes c)presence of resin canal d) fertilization siphonogamous

Last Answer : b)motile male gametes

What are gametes produced by women called?

Description : What are gametes produced by women called?

Last Answer : haploids or zygotes

Fruits are not produced in gymnosperms. Why?

Description : Fruits are not produced in gymnosperms.  Why?

Last Answer : Because they are without an ovary

What are Two types of gametes produced by meiosis?

Description : What are Two types of gametes produced by meiosis?

Last Answer : the female egg and male sperm.

How many different types of genetically different gametes will be produced by a heterozygous plant having the genotype AABbCc? (a) Six (b) Nine (c) Two (d) Four

Description : How many different types of genetically different gametes will be produced by a heterozygous plant having the genotype AABbCc? (a) Six (b) Nine (c) Two (d) Four

Last Answer : (d) Four

How many different kinds of gametes will be produced by a plant having the genotype AABbCC? (a) Two (b) Three (c) Four (d) Nine

Description : How many different kinds of gametes will be produced by a plant having the genotype AABbCC? (a) Two (b) Three (c) Four (d) Nine

Last Answer : (a) Two

In order to find out the different types of gametes produced by a pea plant having the genotype AaBb it should be crossed to a plant with the genotype (a) AABB (b) AaBb (c) aabb (d) aaBB.

Description : In order to find out the different types of gametes produced by a pea plant having the genotype AaBb it should be crossed to a plant with the genotype (a) AABB (b) AaBb (c) aabb (d) aaBB.

Last Answer : (c) aabb

In a moss, the sporophyte (a) manufactures food for itself, as well as for the gametophyte (b) is partially parasitic on the gametophyte(c) produces gametes that give rise to the gametophyte (d) arises from a spore produced from the gametophyte.

Description : In a moss, the sporophyte (a) manufactures food for itself, as well as for the gametophyte (b) is partially parasitic on the gametophyte (c) produces gametes that give rise to the gametophyte (d) arises from a spore produced from the gametophyte.

Last Answer : (b) is partially parasitic on the gametophyte

How many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY? a. 2 b. 4 c. 8 d. 16

Description : How many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY? a. 2 b. 4 c. 8 d. 16

Last Answer : a. 2

What is A plant that has both male and female reproductive structures?

Description : What is A plant that has both male and female reproductive structures?

Last Answer : What is the answer ?

_________ identifies six structures of patriarchy such as household production, paid work, male violence, culture, state and sexuality. a. Freud. b. Walby. c. William James. d. Davidson.

Description : _________ identifies six structures of patriarchy such as household production, paid work, male violence, culture, state and sexuality. a. Freud. b. Walby. c. William James. d. Davidson.

Last Answer : b. Walby.

Which one of the following statements is not correct? (a) Offspring produced by the asexual reproduction are called clone. (b) Microscopic, motile, asexual reproductive structures are called zoospores. (c) In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem. (d) Water hyacinth, growing in the standing water, drains oxygen from water that leads to the death of fishes.

Description : Which one of the following statements is not correct? (a) Offspring produced by the asexual reproduction are called clone. (b) Microscopic, motile, asexual reproductive structures are called zoospores. ( ... in the standing water, drains oxygen from water that leads to the death of fishes.

Last Answer : (c) In potato, banana and ginger, the plantlets arise from the internodes present in the modified stem.

Both the ascus and the basidium a. Are formed by fungi in the mitosporic fungi. b. Are involved in coenocytic formation by fungi. c. Are diploid structures. d. Are produced during the sexual stage of fungal reproduction.

Description : Both the ascus and the basidium a. Are formed by fungi in the mitosporic fungi. b. Are involved in coenocytic formation by fungi. c. Are diploid structures. d. Are produced during the sexual stage of fungal reproduction.

Last Answer : d. Are produced during the sexual stage of fungal reproduction.

The species that flower are called -------? A. Gymnosperms B. Bryophytes C. Angiosperms (Answer)

Description : The species that flower are called -------? A. Gymnosperms B. Bryophytes C. Angiosperms (Answer)

Last Answer : C. Angiosperms (Answer)

$ 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.

Gymnosperms are also called soft wood spermatophytes because they lack (a) cambium (b) phloem fibres (c) thick-walled tracheids(d) xylem fibres

Description : Gymnosperms are also called soft wood spermatophytes because they lack (a) cambium (b) phloem fibres (c) thick-walled tracheids(d) xylem fibres

Last Answer : (d) xylem fibres.

Gymnosperms are also called soft wood spermatophytes because they lack (1) Xylem fibres (2) Cambium (3) Phloem fibres (4) Thick-walled tracheids

Description : Gymnosperms are also called soft wood spermatophytes because they lack (1) Xylem fibres (2) Cambium (3) Phloem fibres (4) Thick-walled tracheids

Last Answer : (4) Thick-walled tracheids

Assertion : Simple cuboidal epithelium is also called as germinal epithelium Reason : Cuboidal cells of gonads forms gametes

Description : Assertion : Simple cuboidal epithelium is also called as germinal epithelium Reason : Cuboidal cells of gonads forms gametes

Last Answer : Assertion : Simple cuboidal epithelium is also called as germinal epithelium Reason : Cuboidal cells of ... . If both Assertion & Reason are false.

Assertion : Simple columner epithelium is also called as Germinal epithelium. Reason : Columnar cells of gonads forms gametes .

Description : Assertion : Simple columner epithelium is also called as Germinal epithelium. Reason : Columnar cells of gonads forms gametes .

Last Answer : Assertion : Simple columner epithelium is also called as Germinal epithelium. Reason : Columnar cells of ... D. If both Assertion & Reason are false.

What is the process of two gametes joining to form a zygote called?

Description : What is the process of two gametes joining to form a zygote called?

Last Answer : Need answer

Which of the following are mostly woody trees, always perennials and never herbs or annuals? (a) Angiosperms (b) Gymnosperms (c) Pteridophytes (d) Bryophytes

Description : Which of the following are mostly woody trees, always perennials and never herbs or annuals? (a) Angiosperms (b) Gymnosperms (c) Pteridophytes (d) Bryophytes

Last Answer : Ans:(b)

Delicious chilgoza seeds, commercially important products such as turpentine and resin and the drug ephedrine, useful in asthma and other respiratory ailments, are all obtained from plants that are (a) Ferns (b) Algae (c) Monocotyledons and dicotyledons (d) Gymnosperms

Description : Delicious chilgoza seeds, commercially important products such as turpentine and resin and the drug ephedrine, useful in asthma and other respiratory ailments, are all obtained from plants that are (a) Ferns (b) Algae (c) Monocotyledons and dicotyledons (d) Gymnosperms

Last Answer : Ans:(d)

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

Write a brief note on cones in gymnosperms

Description : Write a brief note on cones in gymnosperms

Last Answer : The sporophyte of gymnosperms produce prominent structures called cones. They produce two types of cones - male cone and female cone. Male cones contain numerous microsporophylls which ... have male gametes. Female cones contain megasporophylls which produce ovule containing female gametes.