Biology

The temperature range, at which enzymes are maximum functional is

The temperature range, at which enzymes are maximum functional is Options (a) 30° - 50° C (b) 20° - 30°…

How many cytochromes are involved in the electron transport chain?

How many cytochromes are involved in the electron transport chain? Options (a) five (b) two (c) six (d) four Correct…

Which enzyme is used as ‘molecular scissor’ in genetic engineering?

Which enzyme is used as 'molecular scissor' in genetic engineering? Options (a) restriction endonuclease (b) DNA polymerase (c) DNA ligase…

Which of the following fruits are found in the family ranunculaceae?

Which of the following fruits are found in the family ranunculaceae? Options (a) berry (b) achenes (c) capsule (d) all…

The primary acceptor, during carbon dioxide fixation in C₃ plants is

The primary acceptor, during carbon dioxide fixation in C₃ plants is Options (a) phosphoglyceric acid(PGA) (b) phosphoenolpyruvate(PEP) (c) ribulose monophosphate(RMP)…

A vertebra has a convexity both in front and behind it. It is called

A vertebra has a convexity both in front and behind it. It is called Options (a) acoelous (b) procoelous (c)…

Which pigment is essential for nitrogen fixation by leguminous plants

Which pigment is essential for nitrogen fixation by leguminous plants Options (a) anthocyanin (b) phycoerythrin (c) phycocyanin (d) leghaemoglobin Correct…

The drug useful to increase cardiovascular effects in human beings is

The drug useful to increase cardiovascular effects in human beings is Options (a) cocaine (b) barbiturate (c) benzodiazepine (d) insulin…

The endocrine gland of insects, which secretes the juvenile hormone is

The endocrine gland of insects, which secretes the juvenile hormone is Options (a) corpora albicans (b) corpora allata (c) corpora…

Which of the following structures helps in the respiration of lichens?

Which of the following structures helps in the respiration of lichens? Options (a) soredia (b) isidia (c) cyphella (d) cephalodia…