Home
Class 12
BIOLOGY
Which is incorrectly matched? (a) Explan...

Which is incorrectly matched?
(a) Explant - Excised plant part used for callus formation
(b) Cytokinins - Root initiation in callus
(c) Somatic embryos- Embryos produced by vegetative cells
(d) Anther culture-Haploid plants

A

Explant - Excised plant part used for callus formation

B

Cytokinins - Root initiation in callus

C

Somatic embryos- Embryos produced by vegetative cells

D

Anther culture-Haploid plants

Text Solution

AI Generated Solution

The correct Answer is:
To determine which option is incorrectly matched, we will analyze each option step by step. ### Step 1: Analyze Option (a) **Explant - Excised plant part used for callus formation** - An explant is indeed an excised part of a plant that is used in tissue culture to form callus. This definition is accurate. - **Conclusion:** This match is correct. ### Step 2: Analyze Option (b) **Cytokinins - Root initiation in callus** - Cytokinins are plant hormones that primarily promote cell division and shoot formation. They are not primarily responsible for root initiation; instead, auxins are the hormones that promote root development. - **Conclusion:** This match is incorrect. ### Step 3: Analyze Option (c) **Somatic embryos - Embryos produced by vegetative cells** - Somatic embryos are indeed formed from somatic (non-reproductive) cells of the plant, which can be vegetative cells. This definition is correct. - **Conclusion:** This match is correct. ### Step 4: Analyze Option (d) **Anther culture - Haploid plants** - Anther culture is a technique used to produce haploid plants from the pollen grains contained within the anthers. This process is accurate. - **Conclusion:** This match is correct. ### Final Conclusion The incorrectly matched option is **(b) Cytokinins - Root initiation in callus**. ---
Promotional Banner

Topper's Solved these Questions

  • PLANT BREEDING AND DISEASE CONTROL

    DINESH PUBLICATION ENGLISH|Exercise Check your Grasp|10 Videos

  • PHYLUM - ARTHROPODA

    DINESH PUBLICATION ENGLISH|Exercise CYG|20 Videos

  • Plant Growth and Movements

    DINESH PUBLICATION ENGLISH|Exercise BRAIN TEASERS-IV|41 Videos

Similar Questions

Explore conceptually related problems

From which cell of embryo, plumule is produced (a) Apical octant (b) Proembryo (c) Hypophysis (d) Micropylar octant

A mixture of more cytokine and less auxin when sprayed on culture cells induces the formation of (a) shoot (b) root (c) both shoot and root (d) callus

Nodule formation in leguminous plants occur due to (i) Cytokinins produced by invading bacteria (i) Auxins produced by plant cell. (iii) Auxins produced by invading bacteria. (iv) Cytokinin produced by plant cell. (a) (i) and (ii) only (b) (i) and (iii) only (c) (iii) and (iv) only (d) (ii) and (iv) only

Read the following statement and find out the incorrect statement. (a). Asexual reproduction is common among single-celled organisms, and in plants and animals with relatively complex organisations. (b) In yeast, the division is unequal and small buds are produced that remain attached initially to the parent cell which eventually gets separated and mature into yeast organism (cells). (c). vegetative reproduction is also a type of asexual reproduction. (d) While in animals and other simple organisms the term vegetative reproduction is used unambiguously, in plants the term asexual reproduction is frequently used. (e) Water hyacinth is also called 'Terror of Bengal'

From the following, select the process which take place during the development of embryo sac. (a.) Functional megaspore divides by three mitotic divisions. (b.) Type of nuclear division is free , where no cell wall formation takes place. (c.) Among eight nuclei. Six are surrounded by a cell wall. (d.) Central cell is situated below the egg apparatus .

Assertion : In plant tissue culture somatic embryos can be induced from any plant cell. Reason : Any viable plant cell can differentiate into somatic embryos.

Which of the following is correct with respect to kingdom Plantae? (a.) All plants are heterosporous. (b.) All plants contain vascular tissue. (c.) In plants, antheridia are the female sex organ. (d.)Except for algae, all plants bear embryo.

Fill in the places with appropriate word/ words. (a)A phase of growth which is maximum and fastest is ………. (b)Apical domince as expressed in dictyledonous plants is due to the presence of more……. In the apical buyd than in the lateral ones (c )In additon to lauxin a……. Must be supplied to culture medium to obtain a good callus in plant tissue culture (d)…………of a vegetative plants are the sites of photperiodic perception.

Consider the following statements with respect to the flowering plants and choose the correct option (a) Pollen grains represent the male gametes (b) Functional megaspore develops innto embryo sac that represents the female gamete (c) Transfer of pollen grains from anther to stigma of different plant is known as xenogamy (d) Transfer of pollen grains from anther to stigma of another flower of the same plant is known as geitonogamy

Which one of the plant growth regulators would you use if you are asked to: (a) Induce rooting in a twig (b) Quickly ripen a fruit (c) Delay leaf senescence (d) Induce growth in axillary buds (e) ‘Bolt’ a rosette plant (f) Induce immediate stomatal closure in leaves.