Molecular basis of inheritance practice · Mixed difficulty

Which one of the following is the correct statement?

A bacterium grown over medium having radioactive $^{35}S$ incorporates radioactivity in

Which of the following is word as probe?

What type of viruses are produced after the death of $E$. coli, if a $T_2$ phage having radioactive sulfur infects bacteria growing on normal nutrient medium?

In prokaryotes, the process of replication is catalysed by the following enzymes. Identify which of the enzymes is best coordinate with role.

Choose the incorrect statement w.r.t. structure of DNA proposed by Watson and Crick.

The concept of transforming principle was first established by _____ using the bacterium ______.

One E.coli bacterium contains a hybrid DNA with one heavy $\mathrm{N}^{15}$ strand and one light $\mathrm{N}^{14}$ strand. It was allowed to replicate for 3 hours in a medium containing $\mathrm{N}^{15}$. What proportion of E.coli which will neither float nor sink in the test tube on ultra-centrifugation with $\mathrm{CsCl}$ ?

A technique which uses electric field to separate negatively charged DNA molecules is

Which of the following forms the basis of DNA finger printing?

Complete the analogy
DNA: Thymine:: RNA: __________

Griffith injected a combination of live R-type and heat killed S-type Streptococcus pneumoniae in mice. During this experiment

Which of the following is similar in DNA of elephant and mango tree

Histones are

Largest known human gene and number of bases

A DNA strand with the sequence AACGTAACG is transcribed. What is the sequence of the mRNA molecule synthesized?

In a DNA molecule, distance between two based is

Which of the following is most abundant in human DNA?

Initiation codon of protein synthesis (in eukaryotes) is

What is not true for genetic code?

Which of the following have ds DNA?

The net electric charge on DNA and histones is?

Avery, Mc Carty and Macleod fractionated bacteria into

To code 50 amino acids in a poly peptide chain what will be the minimum number of nucleotides in it’s cistron

If a DNA sequence is same as that of a mRNA copy that is translated into protein, it is called

Choose the odd one w.r.t. requirement of DNA replication on template with polarity $3^{\prime} \rightarrow 5^{\prime}$.

How many amino acids will be present in a polypeptide chain when genetic information flows from the following stretch of DNA?

3' TACCATGC ATGCATC 5' Template strand

5' ATGCGTACG TACGTAG 3' Coding strand

In eukaryotes, functioning of which RNA polymerase provides a template for polypeptide synthesis

Statements
I. The four nucleotide bases are not necessarily present in DNA in exact equal
proportions.
II. The total amount of purines are equal to the total amount of pyrimidines.
III. DNA ligase enzyme act to hydrolyse or breakdown a polynucleotide chain into
its component nucleotides.
IV. Nuclease enzymes are capable of restoring an intact DNA duplex.
Of the above statements

Select the correct statements about sickle cell
anaemia.

(A) There is a change in gene for beta globin.

(B) In the beta globin, there is valine in the place of
Lysine.

(C) It is an example of point mutation.

(D) In the normal gene U is replaced by A.

Choose the correct answer from the options given
below: