MCQ
The enzyme involved in transcription is:
- ARNA polymerase
- BDNA polymerase I
- CDNA polymerase II
- DDNA polymerase III
Explanation:
During transcription, RNA polymerase makes a copy of a gene from the DNA to mRNA as needed. During transcription, the DNA site at which RNA polymerase binds is called as a promoter. Transcription commences with one or more sigma factor protein binds to the RNA polymerase holoenzyme, allowing it to bind to promoter DNA. RNA polymerase creates a transcription bubble, which separates the two strands of the DNA helix. This is done by breaking the hydrogen bonds between complementary DNA nucleotides.
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$I.$ Group of independent, interacting populations of same species
$II.$ Group of independent and interacting populations of same species in specific area
$III.$ Group of independent interacting populations of different species in a specific area
$IV.$ Group of independent and interacting populations of different species in different area
Select the correct option
| $(a)$ Bacillus thuringiensis | $(i)$ Cloning vector |
| $(b)$ Thermus aquaticus | $(ii)$ Construction of first $rDNA$ molecule |
| $(c)$ Agrobacterium tumefaciens | $(iii)$ $DNA$polymerase |
| $(d)$ Salmonella typhimurium | $(iv)$ Cry proteins |
Select the correct option from the following:
$(a)\quad(b)\quad(c)\quad(d)$