343307
Spliceosomes are not found in cells of_____
1 Plants
2 Fungi
3 Animals
4 Bacteria
Explanation:
Spliceosomes are used in removal of introns during post-transcriptional processing of hnRNA in eukaryotes only as split genes are absent as prokaryotes.
NEET - 2017
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343308
Which enzyme is responsible for the synthesis of tRNA in prokaryotes ?
1 DNA-dependent RNA polymerase
2 RNA-dependent RNA polymerase
3 DNA-dependent DNA polymerase
4 RNA-dependent DNA polymerases
Explanation:
Transcription is associated with synthesis of an mRNA, t-RNA and r RNA molecule from the DNA template. This activity is carried away by the enzyme RNA polymerase.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343309
Name the nucleotide added to 5' end of hnRNA in capping.
1 Ethyl guanosine monophosphate
2 Ethyl guanosine triphosphate
3 Methyl guanosine triphosphate
4 Methyl guanosine monophosphate
Explanation:
Methyl guanosine triphosphate- the nucleotide that is added to 5' end of hnRNA in capping.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343310
Which is correct?
1 Introns are present in mRNA and exons in tRNA
2 Codons are present in mRNA and anticodons in tRNA
3 Every intron is a set of three terminator codons
4 Exons are present in eukaryotes and introns in prokaryotes
Explanation:
• Both introns and exons are present in mRNA and tRNA does not possess exons. • An intron is any nucleotide sequence within a gene that is removed by RNA splicing during maturation of the final RNA product. • Prokaryotes can't have introns, because they have transcription coupled to translation. • They don't have time/space for that, since intron splicing will stop the coupling. • Eukaryotes evolved the nucleus, where splicing can be done.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343311
Read the statements and choose the correct option. Statement A : The primary transcript produced in eukaryotes is translated without undergoing any modification or processing. Statement B : The hnRNA in humans has exons and introns.
1 Both the statements I and II are correct
2 Both the statements I and II are wrong.
3 Statement II is correct and statement I is wrong.
4 Statement I is correct and statement II is wrong.
Explanation:
In eukaryotes, the genes contain noncoding sequences (introns) intervening between coding sequences (exons). These genes are hence called split genes. Eukaryotic hnRNA transcripts can therefore undergo extensive post-transcriptional processing while still in the nucleus. These introns are removed from the RNA transcripts by a mechanism called RNA splicing during RNA processing prior to their transport to the cytoplasm for translation.
343307
Spliceosomes are not found in cells of_____
1 Plants
2 Fungi
3 Animals
4 Bacteria
Explanation:
Spliceosomes are used in removal of introns during post-transcriptional processing of hnRNA in eukaryotes only as split genes are absent as prokaryotes.
NEET - 2017
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343308
Which enzyme is responsible for the synthesis of tRNA in prokaryotes ?
1 DNA-dependent RNA polymerase
2 RNA-dependent RNA polymerase
3 DNA-dependent DNA polymerase
4 RNA-dependent DNA polymerases
Explanation:
Transcription is associated with synthesis of an mRNA, t-RNA and r RNA molecule from the DNA template. This activity is carried away by the enzyme RNA polymerase.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343309
Name the nucleotide added to 5' end of hnRNA in capping.
1 Ethyl guanosine monophosphate
2 Ethyl guanosine triphosphate
3 Methyl guanosine triphosphate
4 Methyl guanosine monophosphate
Explanation:
Methyl guanosine triphosphate- the nucleotide that is added to 5' end of hnRNA in capping.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343310
Which is correct?
1 Introns are present in mRNA and exons in tRNA
2 Codons are present in mRNA and anticodons in tRNA
3 Every intron is a set of three terminator codons
4 Exons are present in eukaryotes and introns in prokaryotes
Explanation:
• Both introns and exons are present in mRNA and tRNA does not possess exons. • An intron is any nucleotide sequence within a gene that is removed by RNA splicing during maturation of the final RNA product. • Prokaryotes can't have introns, because they have transcription coupled to translation. • They don't have time/space for that, since intron splicing will stop the coupling. • Eukaryotes evolved the nucleus, where splicing can be done.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343311
Read the statements and choose the correct option. Statement A : The primary transcript produced in eukaryotes is translated without undergoing any modification or processing. Statement B : The hnRNA in humans has exons and introns.
1 Both the statements I and II are correct
2 Both the statements I and II are wrong.
3 Statement II is correct and statement I is wrong.
4 Statement I is correct and statement II is wrong.
Explanation:
In eukaryotes, the genes contain noncoding sequences (introns) intervening between coding sequences (exons). These genes are hence called split genes. Eukaryotic hnRNA transcripts can therefore undergo extensive post-transcriptional processing while still in the nucleus. These introns are removed from the RNA transcripts by a mechanism called RNA splicing during RNA processing prior to their transport to the cytoplasm for translation.
NEET Test Series from KOTA - 10 Papers In MS WORD
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BIOXII06: MOLECULAR BASIS OF INHERITANCE
343307
Spliceosomes are not found in cells of_____
1 Plants
2 Fungi
3 Animals
4 Bacteria
Explanation:
Spliceosomes are used in removal of introns during post-transcriptional processing of hnRNA in eukaryotes only as split genes are absent as prokaryotes.
NEET - 2017
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343308
Which enzyme is responsible for the synthesis of tRNA in prokaryotes ?
1 DNA-dependent RNA polymerase
2 RNA-dependent RNA polymerase
3 DNA-dependent DNA polymerase
4 RNA-dependent DNA polymerases
Explanation:
Transcription is associated with synthesis of an mRNA, t-RNA and r RNA molecule from the DNA template. This activity is carried away by the enzyme RNA polymerase.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343309
Name the nucleotide added to 5' end of hnRNA in capping.
1 Ethyl guanosine monophosphate
2 Ethyl guanosine triphosphate
3 Methyl guanosine triphosphate
4 Methyl guanosine monophosphate
Explanation:
Methyl guanosine triphosphate- the nucleotide that is added to 5' end of hnRNA in capping.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343310
Which is correct?
1 Introns are present in mRNA and exons in tRNA
2 Codons are present in mRNA and anticodons in tRNA
3 Every intron is a set of three terminator codons
4 Exons are present in eukaryotes and introns in prokaryotes
Explanation:
• Both introns and exons are present in mRNA and tRNA does not possess exons. • An intron is any nucleotide sequence within a gene that is removed by RNA splicing during maturation of the final RNA product. • Prokaryotes can't have introns, because they have transcription coupled to translation. • They don't have time/space for that, since intron splicing will stop the coupling. • Eukaryotes evolved the nucleus, where splicing can be done.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343311
Read the statements and choose the correct option. Statement A : The primary transcript produced in eukaryotes is translated without undergoing any modification or processing. Statement B : The hnRNA in humans has exons and introns.
1 Both the statements I and II are correct
2 Both the statements I and II are wrong.
3 Statement II is correct and statement I is wrong.
4 Statement I is correct and statement II is wrong.
Explanation:
In eukaryotes, the genes contain noncoding sequences (introns) intervening between coding sequences (exons). These genes are hence called split genes. Eukaryotic hnRNA transcripts can therefore undergo extensive post-transcriptional processing while still in the nucleus. These introns are removed from the RNA transcripts by a mechanism called RNA splicing during RNA processing prior to their transport to the cytoplasm for translation.
343307
Spliceosomes are not found in cells of_____
1 Plants
2 Fungi
3 Animals
4 Bacteria
Explanation:
Spliceosomes are used in removal of introns during post-transcriptional processing of hnRNA in eukaryotes only as split genes are absent as prokaryotes.
NEET - 2017
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343308
Which enzyme is responsible for the synthesis of tRNA in prokaryotes ?
1 DNA-dependent RNA polymerase
2 RNA-dependent RNA polymerase
3 DNA-dependent DNA polymerase
4 RNA-dependent DNA polymerases
Explanation:
Transcription is associated with synthesis of an mRNA, t-RNA and r RNA molecule from the DNA template. This activity is carried away by the enzyme RNA polymerase.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343309
Name the nucleotide added to 5' end of hnRNA in capping.
1 Ethyl guanosine monophosphate
2 Ethyl guanosine triphosphate
3 Methyl guanosine triphosphate
4 Methyl guanosine monophosphate
Explanation:
Methyl guanosine triphosphate- the nucleotide that is added to 5' end of hnRNA in capping.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343310
Which is correct?
1 Introns are present in mRNA and exons in tRNA
2 Codons are present in mRNA and anticodons in tRNA
3 Every intron is a set of three terminator codons
4 Exons are present in eukaryotes and introns in prokaryotes
Explanation:
• Both introns and exons are present in mRNA and tRNA does not possess exons. • An intron is any nucleotide sequence within a gene that is removed by RNA splicing during maturation of the final RNA product. • Prokaryotes can't have introns, because they have transcription coupled to translation. • They don't have time/space for that, since intron splicing will stop the coupling. • Eukaryotes evolved the nucleus, where splicing can be done.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343311
Read the statements and choose the correct option. Statement A : The primary transcript produced in eukaryotes is translated without undergoing any modification or processing. Statement B : The hnRNA in humans has exons and introns.
1 Both the statements I and II are correct
2 Both the statements I and II are wrong.
3 Statement II is correct and statement I is wrong.
4 Statement I is correct and statement II is wrong.
Explanation:
In eukaryotes, the genes contain noncoding sequences (introns) intervening between coding sequences (exons). These genes are hence called split genes. Eukaryotic hnRNA transcripts can therefore undergo extensive post-transcriptional processing while still in the nucleus. These introns are removed from the RNA transcripts by a mechanism called RNA splicing during RNA processing prior to their transport to the cytoplasm for translation.
343307
Spliceosomes are not found in cells of_____
1 Plants
2 Fungi
3 Animals
4 Bacteria
Explanation:
Spliceosomes are used in removal of introns during post-transcriptional processing of hnRNA in eukaryotes only as split genes are absent as prokaryotes.
NEET - 2017
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343308
Which enzyme is responsible for the synthesis of tRNA in prokaryotes ?
1 DNA-dependent RNA polymerase
2 RNA-dependent RNA polymerase
3 DNA-dependent DNA polymerase
4 RNA-dependent DNA polymerases
Explanation:
Transcription is associated with synthesis of an mRNA, t-RNA and r RNA molecule from the DNA template. This activity is carried away by the enzyme RNA polymerase.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343309
Name the nucleotide added to 5' end of hnRNA in capping.
1 Ethyl guanosine monophosphate
2 Ethyl guanosine triphosphate
3 Methyl guanosine triphosphate
4 Methyl guanosine monophosphate
Explanation:
Methyl guanosine triphosphate- the nucleotide that is added to 5' end of hnRNA in capping.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343310
Which is correct?
1 Introns are present in mRNA and exons in tRNA
2 Codons are present in mRNA and anticodons in tRNA
3 Every intron is a set of three terminator codons
4 Exons are present in eukaryotes and introns in prokaryotes
Explanation:
• Both introns and exons are present in mRNA and tRNA does not possess exons. • An intron is any nucleotide sequence within a gene that is removed by RNA splicing during maturation of the final RNA product. • Prokaryotes can't have introns, because they have transcription coupled to translation. • They don't have time/space for that, since intron splicing will stop the coupling. • Eukaryotes evolved the nucleus, where splicing can be done.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343311
Read the statements and choose the correct option. Statement A : The primary transcript produced in eukaryotes is translated without undergoing any modification or processing. Statement B : The hnRNA in humans has exons and introns.
1 Both the statements I and II are correct
2 Both the statements I and II are wrong.
3 Statement II is correct and statement I is wrong.
4 Statement I is correct and statement II is wrong.
Explanation:
In eukaryotes, the genes contain noncoding sequences (introns) intervening between coding sequences (exons). These genes are hence called split genes. Eukaryotic hnRNA transcripts can therefore undergo extensive post-transcriptional processing while still in the nucleus. These introns are removed from the RNA transcripts by a mechanism called RNA splicing during RNA processing prior to their transport to the cytoplasm for translation.