Download App

STD 12 - 5. molecular basis of inheritance — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 5. molecular basis of inheritance1 Mark
MCQ
In eukaryotes, $mRNA$ is synthesized with the aid of
  • A
    $RNA polymerase III.$
  • ✓
    $RNA polmerase II.$
  • C
    $RNA polymerase I.$
  • D
    $reverse transcriptase.$
✓

Answer

Correct option: B.
$RNA polmerase II.$
b
In eukaryotes, $RNA$ polymerase are of $3$ types: $(i) RNA$ polymerase $I$ : Transcribes$ rRNA$ $(285 S, 18 S, 5.8 S) .1 t$ is found in nucleolus. found in nucleoplasm. $(iii)$ RNA polymerase. $III$ : Transcribes $tRNA$, $5 S rRNA$ and $SnRNA$ (small nuclear $RNAs$). It is found in nucleoplasm.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from STD 12 - 5. molecular basis of inheritance→STD 12 - 5. molecular basis of inheritance — all question types→Biology STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Choose the correct statements with reference to organic evolution.

$I.$ Flippers of whale and wings of bat exhibit analogy.

$II.$ Wings of butterfly and wings of bird exhibit homology.

$III.$ Organs with dissimilar structure are called analogous organs.

$IV.$ Organs with similar structure and origin are called homologous organs.

→
Test$-$tube baby means a baby born when.
→
The seminiferous tubules of the testis are lined by the germinal epithelium consisting of
→
When $\text{DNA}$ replication starts:
→
Milky water of tender coconut is
→
Which of the following set includes bacterial diseases?
→
Keystone species are:
→
The equation $\log \text{S}-\log\text{C}+\text{Z} \log$ a is based on the principle put forward by:
→
Mast cell is a cell of $...A...$ of vertebrate animals. Mast cells mediate inflammatory responses such as $...B......$. Mast cells store a number of different chemical mediators including $...C...$ and $...D....$ Here $A$ to $D$ refers to
→
The crossing of an organism with a double $($homozygous$)$ recessive in order to determine whether it is homozygous or heterozygous for a character under consideration is known as:
→