Eukaryotic cells have a well organised nucleus and
a. Both 70 S and 80 S types of ribosomes
b. Flagella associatd with 9 + 2 organisation
c. Shows cytoplasmic streaming
d. their DNA si complexed with histones to constitute the chromatin

Eukaryotic cells have a well organised nucleus and a) Both 70s and 80s types of ribosomes b) Flagella associated with 9 + 2 organisation c) Shows cytoplasmic streaming d) Their DNA is complexed with histones to constitute the chromatin

Which of the following are correct for the cell which has naked ds circular DNA? (a) Both 70S and 80S ribosome (b) Histone absent ( c ) Compartmentalisation of cytoplasm absent (d) Always diploid

Which of the following are correct for the cell which has naked ds circular DNA? (a) Both 70S and 80S ribosome (b) Histone absent ( c ) Compartmentalisation of cytoplasm absent (d) Always diploid

Read the following statements w.r.t. protista. [(a) They have 80 S cytoplasmic ribosomes., (b) Flagella and cilia have 9+0 pattern of microtubule organization., (c) Ciliary mode of movement is faster than flagellated movement protista., (d) Some protists have mixotrophic nutrition., (e) acellular slime moulds are photosynthetic protozoans.]

The transport system in plants consists of two kinds of tissues X and Y. The tissue X is made up of living cells and consists of two components A and B. The component A has tiny pores in its end walls and containg only cytoplasm but no nucleus. On the other hand, component B has cytoplasm as well as nucleus. The tissue Y is made up of dead cells and consists of two components C and D. The component C has open ends whereas component D does not have and consists of two components C and D. The component C has open ends whereas component D does not have open ends. In flowering plants, either only C or both C and D transport water but D is the only water conducting tissue in non-flowering plants. (a) What is (i) tissue X (ii) component A, and (iii) component B ? (b) What is (i) tissue Y (ii) compoment C, and (iii) component D ?