A molecule that can act as a genetic material must fulfill the traits given below, except
(1) it should be able to express itself in the form of 'Mendelian characters'
(2) it should be able to generate its replica
(3) it should be unstable structurally and chemically
(4) it should provide the scope for slow changes that are required for evolution
DNA-dependent RNA polymerase catalyses transcription on one strand of the DNA which is called the
(1) template strand
(2) coding strand
(3) alpha strand
(4) anti strand
Which of the following is not required for any of the techniques of DNA fingerprinting available at present ?
(1) Zinc finger analysis
(2) Restriction enzymes
(3) DNA-DNA hybridisation
(4) Polymerase chain reaction
Which one of the following is the start codon?
(1) UGA
(2) UAA
(3) UAG
(4) AUG
Which one of the following is not applicable to RNA ?
1. Complementary base pairing
2. 5' phosphoryl and 3' hydroxyl ends
3. Heterocyclic nitrogenous bases
4. Chargaff's rule
Identify the correct order of organisation of genetic material from largest to smallest.
(1) Chromosome, gene, genome, nucleotide
(2) Genome, chromosome, nucleotide, gene
(3) Genome, chromosome, gene, nucleotide
(4) Chromosome, genome, nucleotide, gene
In sea urchin DNA, which is double stranded 17% of the bases were shown to be
cytosine. The percentages of the other three bases expected to be present in this DNA
are
1. G/34%, A/24.5%, T/24.5%
2. G/17%, A/16.5%, T/32.5%
3. G/17%, A/33%, T/33%
4. G/8.5%, A/50%, T/24.5%
Select the correct option
|
Direction of RNA synthesis |
Direction of reading of the template DNA strand |
(1) |
5'-3' |
3'-5' |
(2) |
3'-5' |
5'-3' |
(3) |
5'-3' |
5'-3' |
(4) |
3'-5' |
3'-5' |
Commonly used vectors for human genome sequencing are
(1) T-DNA
(2) BAC and YAC
(3) Expression vectors
(4) T/A cloning vectors
The diagram shows an important concept in the genetic implication of DNA. Fill in the blanks A to C
(1) A-transcription, B-replication, C-James Watson
(2) A-translation, B-transcription, C-Ervin Chargaff
(3) A-transcription, B-translation, C-Francis Crick
(4) A-translation, B-extension, C-Rosalind Franklin