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Subjects

Biotechnology

Competent Host

In Class 11 Biotechnology, under the chapter Principles of Biotechnology, students learn how a competent host enables the introduction and maintenance of recombinant DNA. The topic explains why host cells such as bacteria are used in genetic engineering, how chemical treatment or other methods can make cells capable of taking up foreign DNA, and how transformed cells are identified, selected, and multiplied for producing a desired gene product.

Easy · Level 10 · 25 questions

TOPIC PRACTICE

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Up to 25 questions from this page. Select your focus, then start.

25 questions

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  1. Empty vector self-ligation
  2. Perfect sequencing always
  3. No vector entry
  4. Host absence
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  1. Sensitive cells grow around antibiotic breakdown
  2. No host cells present
  3. Only water plate
  4. DNA absent in all cells
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  1. Identifying contamination or mixed colonies
  2. Knowing exact DNA sequence
  3. Measuring protein mass
  4. Checking water level
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  1. DNA sequencing
  2. Water tasting
  3. Host smelling
  4. Fat staining
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  1. For long-term preservation
  2. To burn DNA
  3. To dry host
  4. To digest protein
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  1. To protect cells from freezing damage
  2. To cut DNA
  3. To transform the host
  4. To colour protein
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  1. Strain name, plasmid, marker, and date
  2. Water taste
  3. Plate smell
  4. Protein color only
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  1. Efficiency screening confirmation and troubleshooting are connected
  2. Only water matters
  3. Only photosynthesis matters
  4. No DNA is involved
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  1. DNA enters host selected colonies are screened and confirmed
  2. Host makes water and gel disappears
  3. Protein digestion is the only aim
  4. Light creates plasmid
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  1. A cell that can take up external DNA
  2. An enzyme that digests starch
  3. A pigment that captures light
  4. A mineral that makes bone
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  1. Ability to take up external DNA
  2. Ability to digest proteins
  3. Ability to freeze water
  4. Ability to emit light
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  1. Entry of external DNA into host cell
  2. DNA becoming protein
  3. Water becoming DNA
  4. Host becoming pigment
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  1. It can take up plasmid DNA
  2. It makes starch into DNA
  3. It makes protein into light
  4. It makes water into fat
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  1. By selectable marker based growth
  2. By water smell
  3. By protein taste
  4. By plate weight
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  1. Screening or molecular confirmation
  2. Only colony smell
  3. Only agar color
  4. Only water level
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  1. Calcium chloride and heat shock
  2. Water and sunlight
  3. Protein and fat
  4. Chlorophyll and starch
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  1. Electroporation
  2. Starch digestion
  3. Protein folding
  4. Water boiling
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  1. DNA-coated particles
  2. Only water drops
  3. Protein crystals
  4. Fat droplets
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  1. It can transfer DNA into plant cells
  2. It makes human hemoglobin
  3. It digests starch
  4. It freezes water
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  1. Plant transformation may need regeneration step
  2. Bacteria always need leaves
  3. Plant cells have no DNA
  4. Bacteria are always water
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  1. To check whether cells and method are working
  2. To cut DNA
  3. To make host water
  4. To digest protein
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  1. Checking contamination or background growth
  2. Increasing transformation
  3. Making DNA
  4. Expressing marker
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  1. Many factors like competence DNA and antibiotic can affect it
  2. No growth is always perfect success
  3. It is only a water issue
  4. Host never has a problem
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  1. Weak selection or contamination
  2. Perfect cloning always
  3. No host cells
  4. Only protein expression
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  1. Vector can replicate and express in host
  2. Vector always becomes water
  3. Host always destroys DNA
  4. Marker never works

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