Which one of the following organisms is not an example of eukaryotic cells?

  • Escherichia Coil

  • Euglena Viridis

  • Amoeba proteus

  • Amoeba proteus


A.

Escherichia Coil

The bacterium E. coil is a prokaryote.

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In history of biology, human genome project led to the development of 

  • biotechnology

  • biomonitoring

  • bioinformatic 

  • bioinformatic 


C.

bioinformatic 

Human Genome Project (HGP) was closely associated with  rapid development of the new area in biology called a Bioinformatics, the science of collecting and analysing complex biological data such as genetic codes. 

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Bacillus thuringiensis forms protein crystals, which contain insecticidal protein

  • binds with epithelial cells of midgut of the insect pest ultimately killing it

  • is coded by several genes including the gene cry

  • is acitvated by acid of pH of the foregut is the insect pest

  • is acitvated by acid of pH of the foregut is the insect pest


A.

binds with epithelial cells of midgut of the insect pest ultimately killing it

Soil bacterium Bacillus thuringuensis (Bt) possesses is a gene family cry gene (1-40) over its plasmid, which forms endotoxic proteins, cry protein (protein crystals) during a particular phase of its growth. These crystals contain a toxic insecticidal protein.This toxin, however, does not kill the Bacillus.Actually, the BT toxin protein exists as an inactive toxin, it is converted into an active form of toxin due to the alkaline pH of the gut which solubilizes the crystals. The activated toxin binds to the surface of midgut epithelial and lysis, and eventually cause the death of the insect.

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The genetically - modified (GM) brinjal in India has been developed for 

  • insect - resistance

  • enhancing self- life

  • enhancing mineral content

  • enhancing mineral content


A.

insect - resistance

The genetically modified brinjal or Bt brinjal has the same Cry - LAC gene from Bacillus thuringiensis as cotton. The gene from Bacillus thuringiensis as cotton. The gene is supposed to make the plant tolerant to the shoot and fruit borer insect, which attacks it throughout its life cycle.

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When two unrelated individuals or lines are crossed, the performance of F1 hybrid is often superior to both its parents. This phenomenon is called

  • transformation

  • splicing

  • metamorphosis

  • metamorphosis


D.

metamorphosis

The superiority of hybrids over either of the parents (dominant or recessive is called hybrid vigour (G. shull). Heterosis is equivalent of hybrids vigour.

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