In gymnosperms, the female gametes are produced in structures called

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In gymnosperms, the female gametes are produced in structures called

asked Nov 26, 2021 by triyam04

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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

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Which one of the following is a correct statement? (a) Pteridophyte gametophyte has a protonemal and leafy stage. (b) In gymnosperms, female gametophyte is free- living. (c) Antheridiophores and archegoniophores are present in pteridophytes. (d) Origin of seed habit can be traced in pteridophytes.

Description : Which one of the following is a correct statement? (a) Pteridophyte gametophyte has a protonemal and leafy stage. (b) In gymnosperms, female gametophyte is free- living. (c) Antheridiophores and ... are present in pteridophytes. (d) Origin of seed habit can be traced in pteridophytes.

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85. Which one of the following is a correct statement ? (1) Origin of seed habit can be traced in pteridophytes (2) Pteridophyte gametophyte has a protonemal and leafy stage (3) In gymnosperms female gametophyte is free-living (4) Antheridiophores and archegoniophores are present in pteridophytes

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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.

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 .

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Last Answer : That would be the Gonads.

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Description : Match column I with column II and select the correct option using the codes given below. Column I Column II A. Pistils fused together (i) Gametogenesis B. Formation of gametes (ii) Pistillate C. Hyphae of higher (iii) Syncarpous ascomycetes D ... , C-(iv), D-(iii) (d) A-(iii), B-(i), C-(iv), D-(ii)

Last Answer : (d) A-(iii), B-(i), C-(iv), D-(ii)

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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.

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Last Answer : ANSWER: A -- 1

What are gametes produced by women called?

Description : What are gametes produced by women called?

Last Answer : haploids or zygotes

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Last Answer : Because they are without an ovary

Where are Male gametes are produced?

Description : Where are Male gametes are produced?

Last Answer : Need answer

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

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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.

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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

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Last Answer : What is the answer ?

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.

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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.

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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)

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

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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

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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

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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

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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.

Mention the characteristics of gymnosperms.

Description : Mention the characteristics of gymnosperms.

Last Answer : a) Gymnosperms are naked seed bearing vascular plants. b) They grow on mountain tops at low temperature. c) They mostly comprise of ever green trees. d) The plant body is a sporophyte. e ... gametes resulting in formation of zygote. It becomes the seed. Ex: Cycas, pinus, araucaria, cupresscus.

Why are gymnosperms referred to as naked seeded plants?

Description : Why are gymnosperms referred to as naked seeded plants?

Last Answer : Gymnosperms produce seeds which are exposed and not enclosed in fruits. Hence they are commonly called naked seeded plants.

What are gymnosperms?

Description : What are gymnosperms?

Last Answer : Gymnosperms are naked seed bearing vascular plants. (Gymnos=naked, sperma=seeds)

In gymnosperms; How does pollination takes place?

Description : In gymnosperms; How does pollination takes place?

Last Answer : Through Wind

What is the peculiarity of Gymnosperms?

Description : What is the peculiarity of Gymnosperms?

Last Answer : They have naked ovules