In RNA the uracil is found at the place of thymine (5-methyl uracil, another chemical name for thymine)
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343141
DNA is a polymer of nucleotides which are linked to each other by phosphodiester bond. To prevent polymerisation of nucleotides, which of the following modifications would you choose?
1 Replace purine with pyrimidines
2 Remove/Replace 3' OH group in deoxy ribose
3 Remove/Replace 2' OH group with some other group in deoxy ribose
4 Both 'b' and 'c'
Explanation:
Remove/Replace 3' OH group in deoxy ribose
NCERT Exemplar
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343142
The successive nucleotides of DNA are covalently linked through
1 Peptide bonds
2 Phosphodiester bonds
3 Hydrogen bonds
4 Glycosidic bonds
Explanation:
The successive nucleotides of DNA are covalently linked through phosphate group bridges. Especially, the 5'-hydroxyl group of one nucleotide unit is joined to the 3 '-hydroxyl group of the next nucleotide by a phosphodiester linkage.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343143
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
1 Adenine, thymine - purines
2 Thymine, uracil - pyramidines
3 Uracil, cytosine - pyramidines
4 Guanine, adenine - purines
Explanation:
Purine is an organic nitrogenous base sparingly soluble in water, that gives rise to a group of biologically important derivatives, notably adenine and guanine, which occur in nucleotides and nucleic acids (DNA and RNA).
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343144
Information transfer from RNA to DNA is called
1 DNA polymerase
2 Ligase
3 Reverse transcription
4 Endonuclease
Explanation:
The transfer of information from RNA to DNA or the reverse of normal transcription is known as Reverse transcription. It occurs in retroviruses (HIV), eukaryotes etc.
In RNA the uracil is found at the place of thymine (5-methyl uracil, another chemical name for thymine)
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343141
DNA is a polymer of nucleotides which are linked to each other by phosphodiester bond. To prevent polymerisation of nucleotides, which of the following modifications would you choose?
1 Replace purine with pyrimidines
2 Remove/Replace 3' OH group in deoxy ribose
3 Remove/Replace 2' OH group with some other group in deoxy ribose
4 Both 'b' and 'c'
Explanation:
Remove/Replace 3' OH group in deoxy ribose
NCERT Exemplar
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343142
The successive nucleotides of DNA are covalently linked through
1 Peptide bonds
2 Phosphodiester bonds
3 Hydrogen bonds
4 Glycosidic bonds
Explanation:
The successive nucleotides of DNA are covalently linked through phosphate group bridges. Especially, the 5'-hydroxyl group of one nucleotide unit is joined to the 3 '-hydroxyl group of the next nucleotide by a phosphodiester linkage.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343143
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
1 Adenine, thymine - purines
2 Thymine, uracil - pyramidines
3 Uracil, cytosine - pyramidines
4 Guanine, adenine - purines
Explanation:
Purine is an organic nitrogenous base sparingly soluble in water, that gives rise to a group of biologically important derivatives, notably adenine and guanine, which occur in nucleotides and nucleic acids (DNA and RNA).
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343144
Information transfer from RNA to DNA is called
1 DNA polymerase
2 Ligase
3 Reverse transcription
4 Endonuclease
Explanation:
The transfer of information from RNA to DNA or the reverse of normal transcription is known as Reverse transcription. It occurs in retroviruses (HIV), eukaryotes etc.
In RNA the uracil is found at the place of thymine (5-methyl uracil, another chemical name for thymine)
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343141
DNA is a polymer of nucleotides which are linked to each other by phosphodiester bond. To prevent polymerisation of nucleotides, which of the following modifications would you choose?
1 Replace purine with pyrimidines
2 Remove/Replace 3' OH group in deoxy ribose
3 Remove/Replace 2' OH group with some other group in deoxy ribose
4 Both 'b' and 'c'
Explanation:
Remove/Replace 3' OH group in deoxy ribose
NCERT Exemplar
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343142
The successive nucleotides of DNA are covalently linked through
1 Peptide bonds
2 Phosphodiester bonds
3 Hydrogen bonds
4 Glycosidic bonds
Explanation:
The successive nucleotides of DNA are covalently linked through phosphate group bridges. Especially, the 5'-hydroxyl group of one nucleotide unit is joined to the 3 '-hydroxyl group of the next nucleotide by a phosphodiester linkage.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343143
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
1 Adenine, thymine - purines
2 Thymine, uracil - pyramidines
3 Uracil, cytosine - pyramidines
4 Guanine, adenine - purines
Explanation:
Purine is an organic nitrogenous base sparingly soluble in water, that gives rise to a group of biologically important derivatives, notably adenine and guanine, which occur in nucleotides and nucleic acids (DNA and RNA).
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343144
Information transfer from RNA to DNA is called
1 DNA polymerase
2 Ligase
3 Reverse transcription
4 Endonuclease
Explanation:
The transfer of information from RNA to DNA or the reverse of normal transcription is known as Reverse transcription. It occurs in retroviruses (HIV), eukaryotes etc.
In RNA the uracil is found at the place of thymine (5-methyl uracil, another chemical name for thymine)
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343141
DNA is a polymer of nucleotides which are linked to each other by phosphodiester bond. To prevent polymerisation of nucleotides, which of the following modifications would you choose?
1 Replace purine with pyrimidines
2 Remove/Replace 3' OH group in deoxy ribose
3 Remove/Replace 2' OH group with some other group in deoxy ribose
4 Both 'b' and 'c'
Explanation:
Remove/Replace 3' OH group in deoxy ribose
NCERT Exemplar
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343142
The successive nucleotides of DNA are covalently linked through
1 Peptide bonds
2 Phosphodiester bonds
3 Hydrogen bonds
4 Glycosidic bonds
Explanation:
The successive nucleotides of DNA are covalently linked through phosphate group bridges. Especially, the 5'-hydroxyl group of one nucleotide unit is joined to the 3 '-hydroxyl group of the next nucleotide by a phosphodiester linkage.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343143
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
1 Adenine, thymine - purines
2 Thymine, uracil - pyramidines
3 Uracil, cytosine - pyramidines
4 Guanine, adenine - purines
Explanation:
Purine is an organic nitrogenous base sparingly soluble in water, that gives rise to a group of biologically important derivatives, notably adenine and guanine, which occur in nucleotides and nucleic acids (DNA and RNA).
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343144
Information transfer from RNA to DNA is called
1 DNA polymerase
2 Ligase
3 Reverse transcription
4 Endonuclease
Explanation:
The transfer of information from RNA to DNA or the reverse of normal transcription is known as Reverse transcription. It occurs in retroviruses (HIV), eukaryotes etc.
In RNA the uracil is found at the place of thymine (5-methyl uracil, another chemical name for thymine)
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343141
DNA is a polymer of nucleotides which are linked to each other by phosphodiester bond. To prevent polymerisation of nucleotides, which of the following modifications would you choose?
1 Replace purine with pyrimidines
2 Remove/Replace 3' OH group in deoxy ribose
3 Remove/Replace 2' OH group with some other group in deoxy ribose
4 Both 'b' and 'c'
Explanation:
Remove/Replace 3' OH group in deoxy ribose
NCERT Exemplar
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343142
The successive nucleotides of DNA are covalently linked through
1 Peptide bonds
2 Phosphodiester bonds
3 Hydrogen bonds
4 Glycosidic bonds
Explanation:
The successive nucleotides of DNA are covalently linked through phosphate group bridges. Especially, the 5'-hydroxyl group of one nucleotide unit is joined to the 3 '-hydroxyl group of the next nucleotide by a phosphodiester linkage.
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343143
Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it?
1 Adenine, thymine - purines
2 Thymine, uracil - pyramidines
3 Uracil, cytosine - pyramidines
4 Guanine, adenine - purines
Explanation:
Purine is an organic nitrogenous base sparingly soluble in water, that gives rise to a group of biologically important derivatives, notably adenine and guanine, which occur in nucleotides and nucleic acids (DNA and RNA).
BIOXII06: MOLECULAR BASIS OF INHERITANCE
343144
Information transfer from RNA to DNA is called
1 DNA polymerase
2 Ligase
3 Reverse transcription
4 Endonuclease
Explanation:
The transfer of information from RNA to DNA or the reverse of normal transcription is known as Reverse transcription. It occurs in retroviruses (HIV), eukaryotes etc.
