NEET UG 2022 — Molecular Basis of Inheritance

Match List - I with List - II :  Choose the correct answer from the options given below :

DNA Polymorphism forms the basis of:

In lac operon, $z$ gene codes for :

In an E. coli strain, i gene gets mutated, and its product cannot bind the inducer molecule. If the growth medium is provided with lactose, what will be the outcome?

If DNA contained sulphur instead of phosphorus and proteins contained phosphorus instead of sulfur, what would have been the outcome of Hershey and Chase experiment?

Against the codon 5' UAC 3', what would be the sequence of anticodon on tRNA ?

The process of translation of mRNA to proteins begins as soon as :

Ten E. coli cells with $N15$-dsDNA are incubated in medium containing $N14$ nucleotide. After $60$ minutes, how many E. coli cells will have DNA totally free from $N15$?

If $A$ and $C$ make $30 \%$ and $20 \%$ of DNA, respectively, what will be the percentage composition of $\mathrm{T}$ and $\mathrm{G}$ ?

Match List-I with List-II : \(\begin{array}{|l|l|} \hline \text { List - I } & \text { List - II } \\ \hline \text { (a) Bacteriophage } \phi \times 174 & \text { (i) } 48502 \text { base pairs } \\ \text { (b) Bacteriophage lambda } & \text { (ii) } 5386 \text { nucleotides } \\ \text { (c) Escherichia coli } & \text { (iii) } 3.3 \times 109 \text { base pairs } \\ \text { (d) Haploid content of human DNA } & \text { (iv) } 4.6 \times 106 \text { base pairs } \\ \hline \end{array}\) Choose the correct answer from the options given below:

If a geneticist uses the blind approach for sequencing the whole genome of an organism, followed by assignment of function to different segments, the methodology adopted by him is called as:

If the length of a DNA molecule is $1.1$ metres, what will be the approximate number of base pairs?

Read the following statements and choose the set of correct statements: (a) Euchromatin is loosely packed chromatin. (b) Heterochromatin is transcriptionally active. (c) Histone octamer is wrapped by negatively charged DNA in the nucleosome. (d) Histones are rich in lysine and arginine. (e) A typical nucleosome contains 400bp of DNA helix. Choose the correct answer from the options given below:

Given below are two statements : Statement I : DNA polymerases catalyse polymerisation only in one direction, that is $5^{\prime} \rightarrow 3^{\prime}$ Statement II : During replication of DNA, on one strand the replication is continuous while on other strand it is discontinuous. In the light of the above statements, choose the correct answer from the options given below :