Transformation was discovered by
(1) Meselson and Stahl
(2) Hershey and Chase
(3) Griffith
(4) Watson and Crick
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
Which enzymes/s will be produced in a cell in which there is a non-sense mutation in the lac Y gene?
(1) β-galactosidase
(2) Lactose permease
(3) Transacetylase
(4) Lactose permease and transacetylase
Removal of RNA polymerase III from nucleoplasm will affect the synthesis of
(1) tRNA
(2) hnRNA
(3) mRNA
(4) rRNA
Which one of the following is not a part of a transcription unit in DNA?
(1) The inducer
(2) A terminator
(3) A promoter
(4) The structural gene
If one strand of DNA has the nitrogenous base sequence as ATCTG, what would be the complementary RNA strand sequence?
(1) TTAGU
(2) UAGAC
(3) AACTG
(4) ATCGU
Removal of introns and joining of exons in a defined order during transcription is called
(1) looping
(2) inducing
(3) capping
(4) splicing
What are those structures that appear as ‘beads-on-string’ in the chromosomes when viewed under electron microscope?
(1) Nucleotides
(2) Nucleosomes
(3) Base pairs
(4) Genes