Reproductive capacity of a flowering plant can be appreciated by finding out the:
(A) Size of the embryo sac in the ovule
(B) Number of eggs in the embryo sac
(C) Size of eggs in the embryo sac
(D) Number of ovules in the ovary
Choose the most appropriate answer from the options given below:

Steps to produce transgenic animals are given below. Arrange them in a correct sequence
(A) Selection of proper vector
(B) Introduction of a recombinant vector in host animal cell
(C) Combining of desired gene with the vector using ligase enzymes
(D) Identification and isolation of desired gene
Choose the correct answer from the options given below:

During the process of spermatogenesis, the secondary spermatocytes
undergo ___________ division to produce ___________ spermatids

Identify the statements relevant to Genetically Modified (GM) crops:
A. They have better pest resistance.
B. They have increased nutritional value.
C. They are more reliant on chemical fertilisers.
D. They have less post harvest losses.
Choose the correct answer from the options given below:

The brain size of the Neanderthal man was:

Read the given passage and answer the following questions:
Secondary treatment or biological treatment: The primary effluent is passed into large tanks where air is pumped into it. This allows vigorous growth of aerobic microbes. While growing, these microbes consume the major part of the organic matter in the effluent. This significantly change the BOD (biochemical oxygen demand) of the effluent. The effluent in then passed into a tank a small part of the sludge is pumped back into the aeration tank to serve as the inoculum. The remaining major part of the sludge is pumped into large tanks called sludge digesters. Here, other kinds of bacteria grow anaerobically in the sludge. The biogas produced can be used source of energy as it is inflammable. The effluent from the secondary treatment plant is generally released into natural water bodies like rivers and streams.
Which of the following gas is not produced in anaerobic digestion?

Which one of the following hormones is produced only during pregnancy?

Which of the following is not a stop codon?

For the set of all straight lines in a plane, the relation of "perpendicularity" is:
(A) reflexive but neither symmetric nor transitive.
(B) symmetric but neither reflexive nor transitive.
(C) transitive but neither reflexive nor symmetric.
(D) neither reflexive nor symmetric nor transitive.
(E) reflexive, symmetric but not transitive.
Choose the correct answer from the options given below:

The particular solution of the differential equation \(\cos \left(\frac{d y}{d x}\right)=a,(a \in R ) ; y=2\) at \(x=0\) is given by

Read the passage carefully and answer the Questions
The concentration dependence of the rate of a reaction is called the differential rate equation. It is not always convenient to determine the instantaneous rate, as it is measured by calculating the slope of the tangent at point 't' in the concentration vs time plot. This makes it difficult to determine the rate and hence the order of the reaction. This difficulty is overcome by integrating the differential rate equation. This integrated rate equation gives a direct relation between concentrations at different times and the rate constant. The integrated rate equations are different for the reactions having different reaction orders.
A reaction is first order in A and second order in B. If the concentration of B is doubled its initial concentration and A is reduced to 3/4th of its initial concentration, the new rate of the reaction is

In a given habitat during a given period of time, population density increases if :-

GM crops are better to grow because they :
(A) are more tolerant to abiotic stresses
(B) decrease efficiency of mineral usage
(C) are less reliant on chemical pesticides
(D) reduce post harvest losses"
Choose the correct answer from the options given below :