Home
Class 12
BIOLOGY
Given below are a few statements regardi...

Given below are a few statements regarding somatic hybridisation. Choose the correct statements.
(i) Protoplasts of different cells of the same plant are fused.
(ii) Protoplasts from cells of different species can fused.
(iii) Treatment of cell with cellulase and pectinase mandatory.
(iv) The hybrid protoplast contains characters of only one parential protoplast.

A

I and II

B

I and II

C

I and IV

D

IV and III

Text Solution

Verified by Experts

The correct Answer is:
D
the process of producing somatic hybirds involves the following steps
I. Single cells from selected plants are isolated .
II. The cell walls of cells are diagested by enzymes like pectinase and cellulase to expose the maked protoplasts.
III. Naked protplasts surrounded only by plasma membranes are isoated
IV. the isoated protoplasts are FUsed to obyain hybird proplasts under sterile conditions in special nutrient media.
V. the hybird protoplasts are cultured in a sitable media to form new plant.The hybird protoplast contains characters of of both paraental protoplasts.
Promotional Banner

Topper's Solved these Questions

  • SEXUAL REPRODUCTION IN FIOWERING PIANTS

    NCERT EXEMPLAR|Exercise Sexual Reproduction In Fiowering Piants|53 Videos

Similar Questions

Explore conceptually related problems

Protoplasts of two different cells can be made to fuse with the help of

Isolated protoplasts from two different varieties of plants , can be fused to get hybrid protoplast. These hybrids are called

Assertion. Protoplast fusion is one of the major advantages of tissue culture. Reason. The naked protoplasts of two different plants fuse to from a hybrid.

Given below are statements regarding mutational breeding. Choose the wrong statement. I. It involves changing the type of plant through mutations. II. It can be done only on somatic cells. III. Both physical mutagens (radiations) or chemical mutagens IV. Sonora-64 is an example of mutational breeding in India.

Given below are five statements (i-v) regarding constrivances to ensure cross - pollination is plants (i) Dicliny - Anthers stigmas mature at different times in a bisexual flower. (ii) Dichogamy - Flowers are unisexual. (iii) Prepotency - Pollen grains of the same flower germinate more rapidly over the stigma than the pollen grains another flower. (iv) Heterostyly - Two or three types of flowers with different heights of styles. (v) Herkogamy - A mechanical device to prevent self - pollination which of the above statement are correct ?

Given below are different steps of transformation in a bacterial cell. Arrange them in correct sequence. (i) Heat shock (at 42°C) (ii) Treatment of bacterial cell with divalent cations at 4°C (iii) Bacterial cells are incubated with recombinant DNA on ice (iv) Recombinant/Transformed bacteria are plated and kept at 37°C

Refer to the given diagrammatic represention of parts of two different types of tissues , P and Q. Read the following statements regarding these tissues and select the correct statements . (i)P is a plant whereas Q is an animal tissue. (ii)P is the major water conducting tissue in vascular plants and provides mechanical strength to plant body. (iii)Q is a specialised tissue in animals for receiving stimuli and transmitting messages . (iv) P is composed of all dead cells whereas Q is composed of all living cells.

Choose the correct statements. I. Rauwolfia vomitaria shows differences in chemical, is an example of genetic diversity II. Greater the species abundance greater its species diversity. III. alpha - diversity is a diversity within a community IV. 50% of plants in India are endemic.

Read the following statements and choose the correct answer. (i) Gap junctions cement adjacent cells together. (ii) Areolar tissue contains fibroblasts , macrophages and mast cells. (iii) Tight junctions facilitate the cells to communicate with each other (iv) Adhering junctions help to stop substances from leaking across tissues (v) Cells of connective tissue except blood secrete fibres of structural proteins called elastin.