Several ribosomes may attach to a single mRNA and form a chain called

(1)Polyribosomes

(2)polysomes

(3)Both A and B

(4)Polycistronic mRNA

In prokaryotes which of the following ribosome subunit is absent

(1)30s

(2)50s

(3)40s

(4)70s

Which of the following is true about ribosome except

(1)site of protein synthesis

(2)universal cell organelle

(3)70s is present only in prokaryotes

(4)80s is present in eukaryotes

Polysomes translate mRNA into

(1)proteins

(2)carbohydrates                                

(3)DNA

(4)RNA

Bacteria store their reserved food materials in

(1)Vacuoles

(2)Inclusion bodies                             

(3)Both A and B

(4)Sphaerosomes

Which of the following is true about Inclusion bodies

(1)membraneless

(2)present freely in cytoplasm           

(3)store phosphate,glycogen

(4)All of the above

How many of the following kingdoms are eukaryotic

(monera, protista, fungi, plante, Animalia)

(1)5

(2)4

(3)3

(4)2

Which of the following structures are present in plant cell but absent in animal cell?

(1)plastids

(2)centrioles                                       

(3)large central vacuole

(4)Both A and C

Which of the followings  are common to plant cell and animal cell?

(Peroxisome, nucleolus, lysosome, plasmodesmata, microvilli, microtubule)

Which of the following is true except

(1)all eukaryotic cells are identical

(2)eukaryotic cells possess an organised nucleus with a nuclear envelope

(3)compartmentalisation is present in eukaryotes

(4)All are correct