List of top Biotechnology Questions on Biology

A nucleic acid chain comprises of
A. Phosphate group
B. Nitrogen base
C. Pentose sugar
D. Thiol group
E. $\beta$(1$\rightarrow$4) linkage
Choose the correct answer from the options given below:

Which statement is true with respect to colostrum?

Aldosterone regulates the water and electrolyte balance in the human body by

Beggiatoa, a bacterium depends on organic carbon, inorganic chemicals and inorganic electron donor for its nutrition. On the basis of its nutritional type, it is classified as

Match the items in List I with items in List II

Respiratory pathway is considered as a ________ pathway

Which one of the following is derived from the ectoderm?

The characteristic oxygen binding profile of hemoglobin shown below arises due to the .........

Match the entries in Group I with entries in Group II

In a bacterium, a mutation resulted in an increase of $ K_s $ (substrate-specific constant) for ammonium from 50 $ \mu M $ to 5000 $ \mu M $ without affecting $ \mu_{max} $. The specific growth rate ($ \mu $) of the mutant growing on 0.5 mM ammonium in the medium decreases by a factor of ..........

The total number of DNA molecules present after 5 cycles of polymerase chain reaction (PCR) starting with 3 molecules of template DNA is .................

C$_3$ plants utilize 18 molecules of ATP to synthesize one molecule of glucose from CO$_2$. How many molecules of ATP equivalents are used by C$_4$ plants to synthesize one molecule of glucose from CO$_2$?

Pick the correct statement(s) with respect to the inter-conversion of the topoisomers of a circularly closed double stranded DNA.

Indole acetic acid (IAA) is involved in ...........

Which one of the following statements is INCORRECT with respect to bacterial conjugation?