List of top Botany Questions on Molecular Biology asked in AP EAPCET

What would be the nitrogen base sequences in the m-RNA formed by the given DNA segment.
3' ATGCAGCATGACCGA 5'
5' TACGTCGTACTGGCT 3'

During the expression of Lac operon, the repressor protein binds to

Choose the correct statements among the following: A) Transcriptase catalyzes the polymerization in 5' $\rightarrow$ 3' direction only and the 3' $\rightarrow$ 5' strand is referred to as template. B) The chemical method of Khorana was instrumental in the synthesis of homopolymers of RNA. C) tRNA amino acid acceptor end has bases complementary to the code. D) 23s r-RNA in bacteria is a ribozyme.

Assertion (A): The genetic material should be stable enough not to change with different stages of life cycle, age, with change in physiology of organism. Reason (R): stability of genetic material is clearly evidenced with transforming principle.

Choose the incorrect statement of the following:

Assertion (A): In prokaryotes the DNA in the nucleoid is organized in large loops held by proteins.
Reason (R): In prokaryotes, negatively charged DNA molecules are held with positively charged proteins.
Identify the correct option from the following:

Match the following:

}

Which of the following statements are correct?
[I.] The packaging of chromatin at higher level requires additional set of proteins called non-histone chromosomal proteins.
[II.] In some viruses, the flow of genetic information for protein synthesis is in the reverse direction — that is from RNA to DNA.
[III.] RNA is the genetic material that is passed from virus to bacteria was given by Avery, Macleod and McCarty.
[IV.] RNA polymerase II transcribes the precursor of 5S RNA.

Choose the incorrect statements among the following
1. Purines and cytosine are common in DNA and RNA.
2. Thymine is present only in RNA.

3. Uracil is present in DNA at the place of Thymine.
4. Adenine and Guanine are Purines

Give the nucleotide sequence in the mRNA for this sequence of amino acids given below
Met – Phe – Arg – Gly – Phe

Probes are

Lac Operon concept is introduced by these biochemists and geneticists:

Heterozygous tall plants were crossed with dwarf plants. Then the percentage of dwarf plants produced in the next progeny is:

RNA is the Genetic material in