Planaria possess high capacity of 

• metamorphosis

• regeneration

• alternation of generation

• alternation of generation

A marine cartilaginous fish that can produce electric current is 

• Pristis

• Torpedo

• Trygon 

• Trygon 

Choose the correctly matched pair.

• Tendon - Specialised connective tissue

• Adipose tissue - Dense connective tissue

• Tubular parts of nephrons - Cuboidal epithelium

• Tubular parts of nephrons - Cuboidal epithelium

Choose the correctly matched pair.

• Inner Lining of salivary ducts - Ciliated epithelium

• Moist surface of buccal cavity - Flandular epithelium

• Tubular parts of nephrons - Cuboidal epithelium

• Tubular parts of nephrons - Cuboidal epithelium

In S - phase of the cell cycle

• amount of DNA dobles in each cell

• amount of DNA remains same in each cell

• chromosome number  is increased

• chromosome number  is increased

The motile bacteria are able to move by 

• fimbriae

• flagella

• cilia

• cilia

Select the option which is not correct with respect to enzyme action.

• Substrate binds with enzyme as its active site

• Addition of lot of succinate does not reverse the inhibition of succinic dehydrogenase by malonate

• A non- competitive inhibitor binds the enzyme at asite distinct from that which binds as the substrate

• A non- competitive inhibitor binds the enzyme at asite distinct from that which binds as the substrate

Which one of the following is a non-reducing carbohydrate?

• Maltose

• Sucrose

• Lactose

• Lactose

29.

The enzyme recombinase is required at which stage of meiosis

• Pachytene

• Zygotene

• Diplotene

• Diplotene

Approximately seventy percent of carbon dioxide absorbed by the blood will be transported to the lungs

• as bicarbonate ion

• in the form of dissolved gas molecules

• by binding to RBC

• by binding to RBC