NCERT CLASS 12 CHAPTER 6 MOLECULAR BASIS
OF INHERITANCE | QUIZ SMART | SCORE HIGH |
GUARANTEED ACCURACY!
Transcription - Answer: process of making RNA from DNA
Genetic code that determines the sequences of amino acids in proteins
Process of copying genetic information from one strand of the DNA into RNA
Translation - Answer: process of protein synthesis
Length of DNA - Answer: number of nucleotides (or a pair of nucleotide referred to as
base pairs) present in it
DNA - Answer: First identified by Friedrich Meischer (1869)
- Meischer called it "Nuclein"
- acidic substance present in nucleus
Long polymer of deoxyribonucleotides
Characteristic of an organism
Bacteriophage φ ×174 - Answer: 5386 nucleotides
Bacteriophage lambda - Answer: 48502 base pairs (bp)
Escherichia coli - Answer: 4.6 × 10^6 bp
Haploid content of human DNA - Answer: 3.3 × 10^9 bp
Nucleotide - Answer: 3 Parts
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, - nitrogenous base
- pentose sugar (ribose in RNA, and deoxyribose for DNA)
- phosphate group
- phosphate group is linked to OH of 5' C of a nucleoside through phosphoester linkage
Nitrogenous bases - Answer: - Purines
- Pyrimidines
- Linked to sugar moiety project from the backbone
Purines - Answer: - Adenine
- Guanine
Pyrimidines - Answer: - Cytosine
- Uracil (RNA only)
- Thymine (DNA only)
Nucleoside - Answer: nitrogenous base is linked to the OH of 1' C pentose sugar
through a N-glycosidic linkage
Types of nucleoside - Answer: adenosine or deoxyadenosine
Guanosine or deoxyguanosine
Cytidine or deoxycytidine
Uridine or deoxythymidine
Dinucleotide - Answer: 2 nucleotides are linked through 3'-5' phosphodiester linkage
Polynucleotide chain - Answer: Multiple nucleotides are linked through 3'-5'
phosphodiester linkage
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
OF INHERITANCE | QUIZ SMART | SCORE HIGH |
GUARANTEED ACCURACY!
Transcription - Answer: process of making RNA from DNA
Genetic code that determines the sequences of amino acids in proteins
Process of copying genetic information from one strand of the DNA into RNA
Translation - Answer: process of protein synthesis
Length of DNA - Answer: number of nucleotides (or a pair of nucleotide referred to as
base pairs) present in it
DNA - Answer: First identified by Friedrich Meischer (1869)
- Meischer called it "Nuclein"
- acidic substance present in nucleus
Long polymer of deoxyribonucleotides
Characteristic of an organism
Bacteriophage φ ×174 - Answer: 5386 nucleotides
Bacteriophage lambda - Answer: 48502 base pairs (bp)
Escherichia coli - Answer: 4.6 × 10^6 bp
Haploid content of human DNA - Answer: 3.3 × 10^9 bp
Nucleotide - Answer: 3 Parts
1
APPHIA - Crafted with Care and Precision for Academic Excellence.
, - nitrogenous base
- pentose sugar (ribose in RNA, and deoxyribose for DNA)
- phosphate group
- phosphate group is linked to OH of 5' C of a nucleoside through phosphoester linkage
Nitrogenous bases - Answer: - Purines
- Pyrimidines
- Linked to sugar moiety project from the backbone
Purines - Answer: - Adenine
- Guanine
Pyrimidines - Answer: - Cytosine
- Uracil (RNA only)
- Thymine (DNA only)
Nucleoside - Answer: nitrogenous base is linked to the OH of 1' C pentose sugar
through a N-glycosidic linkage
Types of nucleoside - Answer: adenosine or deoxyadenosine
Guanosine or deoxyguanosine
Cytidine or deoxycytidine
Uridine or deoxythymidine
Dinucleotide - Answer: 2 nucleotides are linked through 3'-5' phosphodiester linkage
Polynucleotide chain - Answer: Multiple nucleotides are linked through 3'-5'
phosphodiester linkage
2
APPHIA - Crafted with Care and Precision for Academic Excellence.
