Which one of the following sex determination systems is found in honey
bee?

The eggs of the cuckoo (koel) have evolved to resemble crow's eggs in size and color. If the parasite bird has laid its eggs in the nest of host and lets the host to incubate them. This is an example of:

The process through which spermatids are transformed into spermatozoa (sperms) is known as:

In Vallisneria, the pollination is carried by:

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.
The anaerobic sludge digester

Genetically modified rice i.e. Golden rice is enriched with:

RNA interference takes place in all eukaryotic organisms as a method of :

Answer the question on basis of passage given below :
A ketone \([ A ]\) which undergoes haloform reaction gives compound \([ B ]\) on reduction. Compound
\([B]\) on heating with sulphuric acid gives compound \([C]\) which forms monozonide \([D]\). The compound \([ D ]\) on hydrolysis in the presence of zinc dust gives compound \([ E ]\). 
Compound \([ E ]\) on oxidation gives \(C _2 H _4 O _2\) [F]
Compound [E] in presence of dil NaOH gives :

The number of peptide linkages in a tripeptide containing three amino acids is :

Arrange the following electromagnetic waves in increasing order of their frequency.
A. Television and FM radio waves
B. X-rays
C. Long radio waves
D. Microwaves
E. Infrared red waves
Choose the correct answer from the options given below:

Arrange the following amines in increasing order of basicity in aqueous solution
(A)\(\left( CH _3\right)_2 NH\)
(B) \(CH _3 NH _2\)
(C)\(\left( CH _3\right)_3 N\)
(D) \(NH _3\)
Choose the correct answer from the options given below :

The value of the determinant \(\left|\begin{array}{lll}a^2 & a & 1 \\ b^2 & b & 1 \\ c^2 & c & 1\end{array}\right|\) is:

During electrolysis of acidified water, 2.8 Litre of oxygen gas is released (at STP). The charge passed through the anode is -