Class 12BiologyBiotechnology Principals and ProcessMix Examples - Biotechnology Principals and Process
MediumWhich of the following statements is not true?
$I.$ $DNA$, being a hydrophilic molecule, cannot pass through cell membranes.
$II.$ $Agrobacterium$ $tumefaciens$ delivers a piece of $DNA$ known as $'T-DNA'$ in the $Ti$ plasmid, which transforms normal plant cells into tumour cells to produce chemicals against pathogens.
$III.$ Retrovirus, adenovirus, and papillomavirus are also now used as cloning vectors in animals because of their ability to transform normal cells into cancerous cells.
$IV.$ In genetic engineering, $DNA$ from different sources are cut with the same restriction enzymes so that both $DNA$ fragments have the same kind of sticky ends.
Choose the correct option.
$I.$ $DNA$, being a hydrophilic molecule, cannot pass through cell membranes.
$II.$ $Agrobacterium$ $tumefaciens$ delivers a piece of $DNA$ known as $'T-DNA'$ in the $Ti$ plasmid, which transforms normal plant cells into tumour cells to produce chemicals against pathogens.
$III.$ Retrovirus, adenovirus, and papillomavirus are also now used as cloning vectors in animals because of their ability to transform normal cells into cancerous cells.
$IV.$ In genetic engineering, $DNA$ from different sources are cut with the same restriction enzymes so that both $DNA$ fragments have the same kind of sticky ends.
Choose the correct option.
- A$Only\; I$
- B$Only\; II$
- C$Only\; III$
- D$Only\; IV$
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Similar Questions
The given figure shows the cloning vector $pBR322$. Identify the labels $A, B, C,$ and $D$ correctly.
MediumAIIMS 2015
View Solution$A$: $cDNA$ libraries are important to scientists in human genomics.
$R$: $cDNA$ is a synthetic type of $DNA$ generated from $mRNA$.
$R$: $cDNA$ is a synthetic type of $DNA$ generated from $mRNA$.
Medium
View SolutionFind the correct match.
$I$ $II$ $III$ $(a)$ $PCR$ $(i)$ Specific base sequence $p.$ $Taq$ polymerase $(b)$ Downstream processing $(ii)$ Inheritable gene $q.$ Ampicillin resistant $(c)$ Restriction endonuclease $(iii)$ Amplification of $DNA$ $r.$ $E. coli$ $(iv)$ Product separation and modification $s.$ Quality control
| $I$ | $II$ | $III$ |
| $(a)$ $PCR$ | $(i)$ Specific base sequence | $p.$ $Taq$ polymerase |
| $(b)$ Downstream processing | $(ii)$ Inheritable gene | $q.$ Ampicillin resistant |
| $(c)$ Restriction endonuclease | $(iii)$ Amplification of $DNA$ | $r.$ $E. coli$ |
| $(iv)$ Product separation and modification | $s.$ Quality control |
Medium
View SolutionRead the following statements carefully and select the correct option $:-$
$(A)$ Source of the restriction enzyme Hind $II$ is Haemophilus influenzae.
$(B)$ If any protein encoding gene is expressed in a heterologous host,it is called as recombinant protein.
$(C)$ Microinjection method for injecting foreign gene is used for animal cell.
$(D)$ $\text{DNA}$ primers are chemically synthesized oligonucleotides that are complementary to the regions of $\text{DNA}$ in $\text{PCR}$.
How many of the above statements are correct?
$(A)$ Source of the restriction enzyme Hind $II$ is Haemophilus influenzae.
$(B)$ If any protein encoding gene is expressed in a heterologous host,it is called as recombinant protein.
$(C)$ Microinjection method for injecting foreign gene is used for animal cell.
$(D)$ $\text{DNA}$ primers are chemically synthesized oligonucleotides that are complementary to the regions of $\text{DNA}$ in $\text{PCR}$.
How many of the above statements are correct?
Medium
View SolutionAn antibiotic resistance gene in a vector helps in the selection of:
Medium
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