166496
A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis?
1 Introns
2 Exons
3 Both (a) and (b)
4 None of these
Explanation:
Introns are intrupted between exons which do, not code any protein product. Introns are removed by a process called splicing. So, in gene sequences only exons code protein part.
VMMC-2012 / UP CPMT-2008 / Uttarakhand PMT-2008
Molecular Basis of Inheritance and
166503
The first phase of translation is
1 Recognition of DNA molecule
2 Aminoacylation of tRNA
3 Recognition of an anti-codon
4 Binding of mRNA to ribosome
Explanation:
The first phase of translation is aminoacylation of tRNA. It is the attachment of an amino acid to a tRNA is a two - step process. The first step, termed 'activation' is the formation of an aminoacyl- AMP (aminoacyl-adenylate) on the enzyme through the hydrolysis of ATP. Then the transfer of the activated amino acid residue from the adenylate to a \(t\) RNA in a reaction referred to as 'charging' take place.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166504
The equivalent of a structural gene is
1 muton
2 cistron
3 operon
4 recon
Explanation:
Cistron is equivalent to structural gene. Cistron is a segment of DNA coding for a polypeptide. - Muton is a small segment of DNA in which mutation occurs. - Operon is the functional unit of a DNA having number of genes. - Recon is the unit of DNA for recombination.
NEET-2016 Phase-II
Molecular Basis of Inheritance and
166507
Protein with 333 amino acids and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
1 1
2 11
3 33
4 333
Explanation:
999 bases in RNA codes for a protein with 333 amino acids - If base at 901 position is deleted then first 900 bases will be normal while bases after \(901^{ {th }}\) base will be altered that is 99 bases will be altered. - 3 bases stand for 1 codon So, 99 bases \(=33\) codons will be altered due to deletion of one base at 901 position.
NEET-2017
Molecular Basis of Inheritance and
166508
Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as 'start' or 'stop' codon. -
1 UCG - Start
2 UUU - Stop
3 UGU - Leucine
4 UAC - Tyrosine
Explanation:
Codon UAC codes for amino acid tyrosine, UCG codes for serine, UUU codes for phenylalanin and UGC codes for cysteine. Start codon is AUG and stop codon UAA, UAG and UGA.
166496
A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis?
1 Introns
2 Exons
3 Both (a) and (b)
4 None of these
Explanation:
Introns are intrupted between exons which do, not code any protein product. Introns are removed by a process called splicing. So, in gene sequences only exons code protein part.
VMMC-2012 / UP CPMT-2008 / Uttarakhand PMT-2008
Molecular Basis of Inheritance and
166503
The first phase of translation is
1 Recognition of DNA molecule
2 Aminoacylation of tRNA
3 Recognition of an anti-codon
4 Binding of mRNA to ribosome
Explanation:
The first phase of translation is aminoacylation of tRNA. It is the attachment of an amino acid to a tRNA is a two - step process. The first step, termed 'activation' is the formation of an aminoacyl- AMP (aminoacyl-adenylate) on the enzyme through the hydrolysis of ATP. Then the transfer of the activated amino acid residue from the adenylate to a \(t\) RNA in a reaction referred to as 'charging' take place.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166504
The equivalent of a structural gene is
1 muton
2 cistron
3 operon
4 recon
Explanation:
Cistron is equivalent to structural gene. Cistron is a segment of DNA coding for a polypeptide. - Muton is a small segment of DNA in which mutation occurs. - Operon is the functional unit of a DNA having number of genes. - Recon is the unit of DNA for recombination.
NEET-2016 Phase-II
Molecular Basis of Inheritance and
166507
Protein with 333 amino acids and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
1 1
2 11
3 33
4 333
Explanation:
999 bases in RNA codes for a protein with 333 amino acids - If base at 901 position is deleted then first 900 bases will be normal while bases after \(901^{ {th }}\) base will be altered that is 99 bases will be altered. - 3 bases stand for 1 codon So, 99 bases \(=33\) codons will be altered due to deletion of one base at 901 position.
NEET-2017
Molecular Basis of Inheritance and
166508
Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as 'start' or 'stop' codon. -
1 UCG - Start
2 UUU - Stop
3 UGU - Leucine
4 UAC - Tyrosine
Explanation:
Codon UAC codes for amino acid tyrosine, UCG codes for serine, UUU codes for phenylalanin and UGC codes for cysteine. Start codon is AUG and stop codon UAA, UAG and UGA.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Molecular Basis of Inheritance and
166496
A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis?
1 Introns
2 Exons
3 Both (a) and (b)
4 None of these
Explanation:
Introns are intrupted between exons which do, not code any protein product. Introns are removed by a process called splicing. So, in gene sequences only exons code protein part.
VMMC-2012 / UP CPMT-2008 / Uttarakhand PMT-2008
Molecular Basis of Inheritance and
166503
The first phase of translation is
1 Recognition of DNA molecule
2 Aminoacylation of tRNA
3 Recognition of an anti-codon
4 Binding of mRNA to ribosome
Explanation:
The first phase of translation is aminoacylation of tRNA. It is the attachment of an amino acid to a tRNA is a two - step process. The first step, termed 'activation' is the formation of an aminoacyl- AMP (aminoacyl-adenylate) on the enzyme through the hydrolysis of ATP. Then the transfer of the activated amino acid residue from the adenylate to a \(t\) RNA in a reaction referred to as 'charging' take place.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166504
The equivalent of a structural gene is
1 muton
2 cistron
3 operon
4 recon
Explanation:
Cistron is equivalent to structural gene. Cistron is a segment of DNA coding for a polypeptide. - Muton is a small segment of DNA in which mutation occurs. - Operon is the functional unit of a DNA having number of genes. - Recon is the unit of DNA for recombination.
NEET-2016 Phase-II
Molecular Basis of Inheritance and
166507
Protein with 333 amino acids and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
1 1
2 11
3 33
4 333
Explanation:
999 bases in RNA codes for a protein with 333 amino acids - If base at 901 position is deleted then first 900 bases will be normal while bases after \(901^{ {th }}\) base will be altered that is 99 bases will be altered. - 3 bases stand for 1 codon So, 99 bases \(=33\) codons will be altered due to deletion of one base at 901 position.
NEET-2017
Molecular Basis of Inheritance and
166508
Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as 'start' or 'stop' codon. -
1 UCG - Start
2 UUU - Stop
3 UGU - Leucine
4 UAC - Tyrosine
Explanation:
Codon UAC codes for amino acid tyrosine, UCG codes for serine, UUU codes for phenylalanin and UGC codes for cysteine. Start codon is AUG and stop codon UAA, UAG and UGA.
166496
A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis?
1 Introns
2 Exons
3 Both (a) and (b)
4 None of these
Explanation:
Introns are intrupted between exons which do, not code any protein product. Introns are removed by a process called splicing. So, in gene sequences only exons code protein part.
VMMC-2012 / UP CPMT-2008 / Uttarakhand PMT-2008
Molecular Basis of Inheritance and
166503
The first phase of translation is
1 Recognition of DNA molecule
2 Aminoacylation of tRNA
3 Recognition of an anti-codon
4 Binding of mRNA to ribosome
Explanation:
The first phase of translation is aminoacylation of tRNA. It is the attachment of an amino acid to a tRNA is a two - step process. The first step, termed 'activation' is the formation of an aminoacyl- AMP (aminoacyl-adenylate) on the enzyme through the hydrolysis of ATP. Then the transfer of the activated amino acid residue from the adenylate to a \(t\) RNA in a reaction referred to as 'charging' take place.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166504
The equivalent of a structural gene is
1 muton
2 cistron
3 operon
4 recon
Explanation:
Cistron is equivalent to structural gene. Cistron is a segment of DNA coding for a polypeptide. - Muton is a small segment of DNA in which mutation occurs. - Operon is the functional unit of a DNA having number of genes. - Recon is the unit of DNA for recombination.
NEET-2016 Phase-II
Molecular Basis of Inheritance and
166507
Protein with 333 amino acids and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
1 1
2 11
3 33
4 333
Explanation:
999 bases in RNA codes for a protein with 333 amino acids - If base at 901 position is deleted then first 900 bases will be normal while bases after \(901^{ {th }}\) base will be altered that is 99 bases will be altered. - 3 bases stand for 1 codon So, 99 bases \(=33\) codons will be altered due to deletion of one base at 901 position.
NEET-2017
Molecular Basis of Inheritance and
166508
Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as 'start' or 'stop' codon. -
1 UCG - Start
2 UUU - Stop
3 UGU - Leucine
4 UAC - Tyrosine
Explanation:
Codon UAC codes for amino acid tyrosine, UCG codes for serine, UUU codes for phenylalanin and UGC codes for cysteine. Start codon is AUG and stop codon UAA, UAG and UGA.
166496
A eukaryotic gene contains two kinds of base sequences. Which of these plays an important role in protein synthesis?
1 Introns
2 Exons
3 Both (a) and (b)
4 None of these
Explanation:
Introns are intrupted between exons which do, not code any protein product. Introns are removed by a process called splicing. So, in gene sequences only exons code protein part.
VMMC-2012 / UP CPMT-2008 / Uttarakhand PMT-2008
Molecular Basis of Inheritance and
166503
The first phase of translation is
1 Recognition of DNA molecule
2 Aminoacylation of tRNA
3 Recognition of an anti-codon
4 Binding of mRNA to ribosome
Explanation:
The first phase of translation is aminoacylation of tRNA. It is the attachment of an amino acid to a tRNA is a two - step process. The first step, termed 'activation' is the formation of an aminoacyl- AMP (aminoacyl-adenylate) on the enzyme through the hydrolysis of ATP. Then the transfer of the activated amino acid residue from the adenylate to a \(t\) RNA in a reaction referred to as 'charging' take place.
NEET-2020 Phase-I
Molecular Basis of Inheritance and
166504
The equivalent of a structural gene is
1 muton
2 cistron
3 operon
4 recon
Explanation:
Cistron is equivalent to structural gene. Cistron is a segment of DNA coding for a polypeptide. - Muton is a small segment of DNA in which mutation occurs. - Operon is the functional unit of a DNA having number of genes. - Recon is the unit of DNA for recombination.
NEET-2016 Phase-II
Molecular Basis of Inheritance and
166507
Protein with 333 amino acids and the base at position 901 is deleted such that the length of the RNA becomes 998 bases, how many codons will be altered?
1 1
2 11
3 33
4 333
Explanation:
999 bases in RNA codes for a protein with 333 amino acids - If base at 901 position is deleted then first 900 bases will be normal while bases after \(901^{ {th }}\) base will be altered that is 99 bases will be altered. - 3 bases stand for 1 codon So, 99 bases \(=33\) codons will be altered due to deletion of one base at 901 position.
NEET-2017
Molecular Basis of Inheritance and
166508
Which one of the following triplet codes, is correctly matched with its specificity for an amino acid in protein synthesis or as 'start' or 'stop' codon. -
1 UCG - Start
2 UUU - Stop
3 UGU - Leucine
4 UAC - Tyrosine
Explanation:
Codon UAC codes for amino acid tyrosine, UCG codes for serine, UUU codes for phenylalanin and UGC codes for cysteine. Start codon is AUG and stop codon UAA, UAG and UGA.
