Reproduction in Fungus
Trending Questions
- Pteridophytes
- Algae
- Angiosperms
- Bryophytes
Zygotic meiosis occurs in organisms showing
Diploid life cycle
Haplo-diplontic life cycle
Diplobiontic life cycle
Haplontic life cycle
In which entity sporophytic generation is represented by the zygote?
Does Hydra show metagenesis?
- Diploid
- Triploid
- Haploid
- Both a or c
Identify the phenomenon depicted in the given image.
Zygospore formation
Sporulation
Fragmentation
Budding
- Twice the number of chromosomes and twice the amount of DNA
- Same number of chromosomes but twice the amount of DNA
- Twice the number of chromosomes and four times the amount of DNA
- Four times the number of chromosomes and twice the amount of DNA
- Diploid, haploid
- Haploid, diploid
- Diploid, diploid
- Haploid, haploid
- Paramoecium
- Euglena
- Entamoeba
- Monocystis
- Ambystoma.
- Silkworm.
- Roundworm.
- Amphioxus.
- Spore stage
- Both B and C
- Gametangium
- Somatic phase
Bryophytes exhibit two successive generations, gametophytes and sporophytes. These phases alternate each other. Name this phenomenon
- Vascular amphibians of plant kingdom
- First tracheophytes
- Botanical snakes
- All of the above
Select the incorrect statement from the following.
Gametes are always haploid though the parent plant body from which they arise may be either haploid or diploid.
A haploid parent produces gametes by meiotic division.
Most fungi, algae and bryophytes have haploid body.
In pteridophytes, gymnosperms and angiosperms the parental body is diploid.
when does meiosis occur in the organisms wih haplontic and diplontic life cycles respectively
- Mosses
- Ferns
- Horsetails
- Conifers
- Megasporogenesis
- Megagametogenesis
- Microgametogenesis
- None of the above
(B) Salvinia is heterosporous.
(C) In Pinus, male and female cones are borne on different trees.
(D) The life-cycle in all seed bearing plants is diplontic.
The two wrongly matched statements together are
- Statement B and C
- Statement A and B
- Statement A and C
- Statement A and D
- Analogous to stem and leaves of higher plants
- Homologous to stem and leaves of higher plants
- Both analogous and homologus
- None of the above
Do haploid oganisms never undergo meiosis?
- The fusion of two haploid hyphae with simultaneous nuclear fusion
- The fusion of two haploid hyphae without simultaneous nuclear fusion
- Fusion of egg cell with sperm
- Fusion of sperm with polar nuclei
- Pinna release spores.
- Dominant gametophytic plant body.
- Dominant sporophytic plant body.
- Prothallus give rise to gametophytic body.
- 1
- 4
- 8
- 2
- Anther wall
- Tapetal layer of anther wall
- Young pollen grains
- Connective tissue
I. Parthenogenesis
II. Apogamy
III. Sporophytic budding
Select the correct answer using the code given below.
- Only I
- I, II and III
- II and III
- Only II
- Drosophila
- Elephant
- Mouse
- Pigeon
- Thalloid nature
- Chloroplasts
- Archegonia
- All the above