Reproduction in Plants (AIPVT)
Mutation Reproductive Organs of PlantsFertilizationReproduction in PlantsIntroduction to Asexual Reproduction
Questions
Zoospores, i.e. motile spores, are found in
- aspergillus
- rhizopus
- penicillium
- chlamydomonas
Which of the following plant parts is/are utilised in clonal propagation?
- Apical bud
- Apical shoot
- Meristem
- All of the above
A special mode of reproduction commonly observed in citrus species is
- parthenocarpy
- parthenogenesis
- polyembryony
- apomixis
In which process does a diploid embryo sac directly develop from an ordinary diploid saprophyte cell?
- Diplospory
- Apospory
- Adventive embryony
- Apogamy
What is the female sex organ of bryophytes called?
- Oogonia
- Archegonia
- Anthridia
- Egg apparatus
What happens in the process of parthenocarpy?
- Embryo develops directly from the cells of nucellus.
- Embryo develops from egg cell without fertilisation.
- Ovary develops into fruit without fertilisation.
- Embryo develops from any cell of the gametophyte other than the egg cell.
What are leaves that bear sporangia called?
- Sporangiophores
- Sporophylls
- Strobili
- Pollens
In which of the following plants are sporangia found on abaxial surface?
- Lycophytes
- Ferns
- Cycads
- Conifers
The lower swollen portion of archegonia is called
- neck
- venter
- paraphyses
- ovum
What is the male gametes of lower plants called?
- Anthridia
- Sporophytes
- Spermatozoids
- Paraphyses
What is the development of embryo from any cell of the gametophyte, other than the egg cell, called?
- Apogamy
- Adventive embryony
- Diplospory
- Apospory
Where are sporangia found in lycophytes?
- Abaxial surface of leaves
- Adaxial surface of leaves
- Terminal side of stem
- Lateral side of stem
What is a cluster of sporangia that has become fused in development called?
- Sporophyll
- Synangium
- Columella
- Strobilus
Which of the following statements is true about alternation of generation?
- Both gametophyte and sporophyte are haploid.
- Both gametophyte and sporophyte are diploid.
- Sporophyte is diploid and gametophyte is haploid.
- Gametophyte is diploid and sporophyte is haploid.
The process of reproduction in which formation of embryo takes place without fertilisation (fusion of gametes) is called
- polyembryony
- apomixis
- asexual reproduction
- micropropagation