Read the following statements and choose the option with all correct statement.
I. size of a cell depends upon nucleoplasmic index.
II. Occurrence of different type of tissues, organs and organ system results in division of labour.
III. 'Omnis cellula-e-cellula' was experimentally demonstrated by Negeli.
IV. Viruses are an exception to cell theory.

Which of the statements are correct? I.Occurence of different types of tissues ,organs and organ system results in division of labour II.A new cell always develops by the division of a pre existing cells III.Cells are totipotent IV.Cell is the smallest unit,capable of independent existence and performing the essential functions of life. The correct option is

Read the following statements and choose the correct option. (i) Mycoplasma lacks a cell membrane. (ii) Mycoplasma are the smallest living cells to exist on the planet. (iii) Mycoplasma survives only without oxygen.

Read the following statements and choose the correct option. (i) Mycoplasma lacks a cell membrane. (ii) Mycoplasma are the smallest living cells to exist on the planet. (iii) Mycoplasma survives only without oxygen.

Consider the following statements and choose the correct option. i. The genetic constitution of a plant is unaffected in vegetative propagation ii. Rhizome in ginger serves as an organ of vegetative reproduction iii. Totipotency of cells enables us to micropropagate plants

Read the following statements and choose the correct option (i) Aves are homothermous (ii) Pinnae are present in mammals (iii) Operculum is present in chondrichthyes (iv) Skin of amphibians is dry and horny . (v) Open type of circulation is found in cyclostomes

Read the following statements and choose the correct option (i) Aves are homothermous (ii) Pinnae are present in mammals (iii) Operculum is present in chondrichthyes (iv) Skin of amphibians is dry and horny . (v) Open type of circulation is found in cyclostomes

Read the following statements and choose the correct option (i) Aves are homothermous (ii) Pinnae are present in mammals (iii) Operculum is present in chondrichthyes (iv) Skin of amphibians is dry and horny . (v) Open type of circulation is found in cyclostomes

Consider the following statements and choose the correct option (i) The genetic constitution of a plant is unaffected in vegetative propagation (ii) Rhizome in ginger serves as an organ of vegetative reproduction (iii) Totipotency of cells enables us to micropropagate plants

Consider the following statements and choose the correct option (i)The genetic consitution of a plant is unaffected in vegetative propagation (ii) Rhizome in ginger serves as an organ of vegetative reproduction (iii) Totipotency of cells enables us to micropropagate plants