Two plants can be conclusively said to belong to the same species if they
can reproduce freely with each other and form seeds
have more than 90 per cent similar genes
look similar and possess identical secondary metabolites
look similar and possess identical secondary metabolites
A.
can reproduce freely with each other and form seeds
Fitness (survival of the fittest) is a result of selection and proliferation of only those organisms which were most suitably adapted to the environment and get selected by nature.
A sequential expression of a set of human genes occurs when a steroid molecule binds to the
transfer RNA
messenger RNA
DNA sequence
DNA sequence
In the human female, menstruation can be deferred by the administration of
LH only
Combination of FSH and LH
Combination of estrogen and progesterone
Combination of estrogen and progesterone
Probiotics are
safe antibiotics
cancer inducing microbes
new kind of food allergens
new kind of food allergens
Which one of the following is being utilised as a source of biodiesel in the Indian countryside?
betroot
sugarcane
pongamia
pongamia
In which one of the following the BOD (Biochemical Oxygen Demand ) of sewage (s), distillery effluent (DE), paper mill effluent (PE) and sugar mill effluent (SE) have been arranged in ascending order?
SE < S < PE < DE
SE < PE < S < DE
PE < S < SE < DE
PE < S < SE < DE
Two genes R and Y are located very close on the chromosomal linkage map of a maize plant. When RRYY and rryy genotypes are hybridised, the F2 segregation will show:
higher number of the recombinant types.
segregation in the expected 9 : 3 : 3 : 1 ratio
segregation in 3 : 1 ratio
segregation in 3 : 1 ratio
Select the correct statement from the following:
Darwinian variations are small and directionless
Fitness is the end result of the ability to adapt and gets selected by nature
All mammals except whales and camels have seven cervical vertebrae
All mammals except whales and camels have seven cervical vertebrae
In a coal-fired power plant, electrostatic precipitators are installed to control emission of
SO2
NOX
SPM
SPM
About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and
phosphorus and sulphur
sulphur and magnesium
magnesium and sodium
magnesium and sodium
