NEET Test Series from KOTA - 10 Papers In MS WORD
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Molecular Basis of Inheritance and
166317
Spliceosomes are not found in cells of
1 Plants
2 Fungi
3 Animals
4 Bacteria
Explanation:
The spliceosome is a large RNA- protein complex that catalyses the removal of introns from nuclear pre-mRNA. Hence spliceosomes are not found in bacterial cells. - A wide range of biochemical and genetical studies shows that the spliceosome comprises three major RNA protein subunits. the \(\mathrm{U}_{1}, \mathrm{U}_{2}\) and \(\mathrm{U}_{4} / \mathrm{U}_{6}\) - Spliceosome are used in removal of introns during post - transcriptional processing of hn RNA in eukaryote only, as split genes are absent in prokaryotes.
NEET-2017
Molecular Basis of Inheritance and
166319
Purines in RNA are:
1 adenine and guanine
2 thiamine and cytosine
3 thymine and uracil
4 uracil and cytosine
Explanation:
RNA is a polymer of ribonucleotides. Both DNA and RNA is made up of nucleotides consisting of a 5 carbon sugar ribose, a phosphate group and a nitrogenous base. The nitrogenous base found in RNA are adenine, uracil, cytosine, guanine. Adenine and guanine are the purine bases and the uracil and cytosine are the pyrimidine bases in the RNA.
J and K CET-2002
Molecular Basis of Inheritance and
166320
Against the codon \(5^{\prime}\) UAC \(3^{\prime}\), what would be the sequence of anticodon on tRNA?
1 5' - AUG - 3'
2 5' - ATG - 3'
3 5' - GTA - 3'
4 5'- GUA -3'
Explanation:
The anticodon on t-RNA is complementary to codon. The codon is a sequence of three bases on mRNA. If the mRNA codon is 5'- UAC-3' then tRNA anticodon will be 3 '- AUG -5'. The base sequences are usually read in the \(5^{\prime} \rightarrow 3^{\prime}\) direction. Therefore the codon of \(t-\) RNA anticodon in the \(5^{\prime} \rightarrow 3^{\prime}\) direction is \(5^{\prime}\) - GUA - 3'.
NEET (Re-Exam)-04.09.2022
Molecular Basis of Inheritance and
166321
Which form of RNA has a structure resembling clover leaf?
1 hn-RNA
2 m-RNA
3 t-RNA
4 r-RNA
Explanation:
Clover leaf model of t-RNA was proposed by R.W. Holley. tRNA molecule consists of 70-80 nucleotides that fold like a clover leaf. tRNA has three characteristics loops T \(\psi\) C loop, anticodon loop and DHU loop. It also has stem like amino acid acceptor arm. The clover leaf structure is actually a two dimentional structure.
The spliceosome is a large RNA- protein complex that catalyses the removal of introns from nuclear pre-mRNA. Hence spliceosomes are not found in bacterial cells. - A wide range of biochemical and genetical studies shows that the spliceosome comprises three major RNA protein subunits. the \(\mathrm{U}_{1}, \mathrm{U}_{2}\) and \(\mathrm{U}_{4} / \mathrm{U}_{6}\) - Spliceosome are used in removal of introns during post - transcriptional processing of hn RNA in eukaryote only, as split genes are absent in prokaryotes.
NEET-2017
Molecular Basis of Inheritance and
166319
Purines in RNA are:
1 adenine and guanine
2 thiamine and cytosine
3 thymine and uracil
4 uracil and cytosine
Explanation:
RNA is a polymer of ribonucleotides. Both DNA and RNA is made up of nucleotides consisting of a 5 carbon sugar ribose, a phosphate group and a nitrogenous base. The nitrogenous base found in RNA are adenine, uracil, cytosine, guanine. Adenine and guanine are the purine bases and the uracil and cytosine are the pyrimidine bases in the RNA.
J and K CET-2002
Molecular Basis of Inheritance and
166320
Against the codon \(5^{\prime}\) UAC \(3^{\prime}\), what would be the sequence of anticodon on tRNA?
1 5' - AUG - 3'
2 5' - ATG - 3'
3 5' - GTA - 3'
4 5'- GUA -3'
Explanation:
The anticodon on t-RNA is complementary to codon. The codon is a sequence of three bases on mRNA. If the mRNA codon is 5'- UAC-3' then tRNA anticodon will be 3 '- AUG -5'. The base sequences are usually read in the \(5^{\prime} \rightarrow 3^{\prime}\) direction. Therefore the codon of \(t-\) RNA anticodon in the \(5^{\prime} \rightarrow 3^{\prime}\) direction is \(5^{\prime}\) - GUA - 3'.
NEET (Re-Exam)-04.09.2022
Molecular Basis of Inheritance and
166321
Which form of RNA has a structure resembling clover leaf?
1 hn-RNA
2 m-RNA
3 t-RNA
4 r-RNA
Explanation:
Clover leaf model of t-RNA was proposed by R.W. Holley. tRNA molecule consists of 70-80 nucleotides that fold like a clover leaf. tRNA has three characteristics loops T \(\psi\) C loop, anticodon loop and DHU loop. It also has stem like amino acid acceptor arm. The clover leaf structure is actually a two dimentional structure.
The spliceosome is a large RNA- protein complex that catalyses the removal of introns from nuclear pre-mRNA. Hence spliceosomes are not found in bacterial cells. - A wide range of biochemical and genetical studies shows that the spliceosome comprises three major RNA protein subunits. the \(\mathrm{U}_{1}, \mathrm{U}_{2}\) and \(\mathrm{U}_{4} / \mathrm{U}_{6}\) - Spliceosome are used in removal of introns during post - transcriptional processing of hn RNA in eukaryote only, as split genes are absent in prokaryotes.
NEET-2017
Molecular Basis of Inheritance and
166319
Purines in RNA are:
1 adenine and guanine
2 thiamine and cytosine
3 thymine and uracil
4 uracil and cytosine
Explanation:
RNA is a polymer of ribonucleotides. Both DNA and RNA is made up of nucleotides consisting of a 5 carbon sugar ribose, a phosphate group and a nitrogenous base. The nitrogenous base found in RNA are adenine, uracil, cytosine, guanine. Adenine and guanine are the purine bases and the uracil and cytosine are the pyrimidine bases in the RNA.
J and K CET-2002
Molecular Basis of Inheritance and
166320
Against the codon \(5^{\prime}\) UAC \(3^{\prime}\), what would be the sequence of anticodon on tRNA?
1 5' - AUG - 3'
2 5' - ATG - 3'
3 5' - GTA - 3'
4 5'- GUA -3'
Explanation:
The anticodon on t-RNA is complementary to codon. The codon is a sequence of three bases on mRNA. If the mRNA codon is 5'- UAC-3' then tRNA anticodon will be 3 '- AUG -5'. The base sequences are usually read in the \(5^{\prime} \rightarrow 3^{\prime}\) direction. Therefore the codon of \(t-\) RNA anticodon in the \(5^{\prime} \rightarrow 3^{\prime}\) direction is \(5^{\prime}\) - GUA - 3'.
NEET (Re-Exam)-04.09.2022
Molecular Basis of Inheritance and
166321
Which form of RNA has a structure resembling clover leaf?
1 hn-RNA
2 m-RNA
3 t-RNA
4 r-RNA
Explanation:
Clover leaf model of t-RNA was proposed by R.W. Holley. tRNA molecule consists of 70-80 nucleotides that fold like a clover leaf. tRNA has three characteristics loops T \(\psi\) C loop, anticodon loop and DHU loop. It also has stem like amino acid acceptor arm. The clover leaf structure is actually a two dimentional structure.
The spliceosome is a large RNA- protein complex that catalyses the removal of introns from nuclear pre-mRNA. Hence spliceosomes are not found in bacterial cells. - A wide range of biochemical and genetical studies shows that the spliceosome comprises three major RNA protein subunits. the \(\mathrm{U}_{1}, \mathrm{U}_{2}\) and \(\mathrm{U}_{4} / \mathrm{U}_{6}\) - Spliceosome are used in removal of introns during post - transcriptional processing of hn RNA in eukaryote only, as split genes are absent in prokaryotes.
NEET-2017
Molecular Basis of Inheritance and
166319
Purines in RNA are:
1 adenine and guanine
2 thiamine and cytosine
3 thymine and uracil
4 uracil and cytosine
Explanation:
RNA is a polymer of ribonucleotides. Both DNA and RNA is made up of nucleotides consisting of a 5 carbon sugar ribose, a phosphate group and a nitrogenous base. The nitrogenous base found in RNA are adenine, uracil, cytosine, guanine. Adenine and guanine are the purine bases and the uracil and cytosine are the pyrimidine bases in the RNA.
J and K CET-2002
Molecular Basis of Inheritance and
166320
Against the codon \(5^{\prime}\) UAC \(3^{\prime}\), what would be the sequence of anticodon on tRNA?
1 5' - AUG - 3'
2 5' - ATG - 3'
3 5' - GTA - 3'
4 5'- GUA -3'
Explanation:
The anticodon on t-RNA is complementary to codon. The codon is a sequence of three bases on mRNA. If the mRNA codon is 5'- UAC-3' then tRNA anticodon will be 3 '- AUG -5'. The base sequences are usually read in the \(5^{\prime} \rightarrow 3^{\prime}\) direction. Therefore the codon of \(t-\) RNA anticodon in the \(5^{\prime} \rightarrow 3^{\prime}\) direction is \(5^{\prime}\) - GUA - 3'.
NEET (Re-Exam)-04.09.2022
Molecular Basis of Inheritance and
166321
Which form of RNA has a structure resembling clover leaf?
1 hn-RNA
2 m-RNA
3 t-RNA
4 r-RNA
Explanation:
Clover leaf model of t-RNA was proposed by R.W. Holley. tRNA molecule consists of 70-80 nucleotides that fold like a clover leaf. tRNA has three characteristics loops T \(\psi\) C loop, anticodon loop and DHU loop. It also has stem like amino acid acceptor arm. The clover leaf structure is actually a two dimentional structure.
