Which one of the following statements is correct regarding sexually transmitted diseases \((STDs)\) ?

Which among the following is not a prokaryote?

While explaining interspecific interaction of population, \((+)\) sign is assigned for beneficial interaction,\((-)\) sign is assigned for detrimental interaction and \((0)\) for neutral interaction. Which of the following interactions can be assigned \((+)\) for one species and \((-)\) for another species involved in the interaction?

At which stage of \(HIV\) infection does one usually show symptoms of \(AIDS\) ?

Which of the following is a correct match for disease and its symptoms ?

In a species, the weight of newborn ranges from \(2\) to \(5\; \mathrm{kg} .97 \%\) of the newbom with an average weight between \(3\) to \(3.3\; \mathrm{kg}\) survive whereas \(99 \%\) of the infants born with weights from \(2\) to \(2.5\; \mathrm{kg}\) or \(4.5\) to \(5 \;kg\) die. Which type of selection process is taking place?

What map unit (Centimorgan) is adopted in the construction of genetic maps?

For the cell reaction......\(kJ\, mol^{-1}\) \(2 \mathrm{Fe}^{3+}(\mathrm{aq})+2 \mathrm{I^-}(\mathrm{aq}) \rightarrow 2 \mathrm{Fe}^{2+}(\mathrm{aq})+\mathrm{I}_{2}(\mathrm{aq})\) \(\mathrm{E}_{\text {call }}^{\mathrm{e}}=0.24 \mathrm{V}\) at \(298\; \mathrm{K}\). The standard Gibbs energy \(\left( {{\Delta _r}{{\rm{G}}^ \ominus }} \right)\) of the cell reaction is: [Faraday constant \(\mathrm{F}=96500 \;\mathrm{C} \mathrm{mol}^{-1} \)]

Which of the following statements are correct with reference to a transcription unit ?
A. A transcription unit in DNA is defined primarily by three regions : promoter, structural gene and terminator.
B. The promoter is said to be located towards the \(5^{\prime}\)-end of the structural gene.
C. The promoter is a DNA sequence that provides binding site for RNA polymerase.
D. The promoter defines the template and coding strands.
E. The terminator is located towards the \(3^{\prime}\)-end of the coding strand and it defines the end of the process of transcription.
Choose the correct answer from the options given below :

The potential differences across the resistance, capacitance and inductance are \(80\,\, V, \,\,40 \,\,V\) and \(100\,\, V\) respectively in an \(L-C-R\) circuit. The power factor of this circuit is 

Following statements describe the characteristics of the enzyme Restriction endonuclease. Identify the Incorrect statement.

A point mass '\(m\)" is moved in a vertical circle of radius 'r" with the help of a string. The velocity of the mass is \(\sqrt{7 gr }\) at the lowest point. The tension in the string at the lowest point is .......... \(mg\)

The reaction centre in \(PS\) \(II\) has an absorption maxima at \(............\,nm\)