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Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?

A) Genetic code is specific B) Genetic code is not ambiguous C) Genetic code is redundant D) Genetic code is nearly universal Answer:D)... View Article

What is the genetic disorder in which an individual has an overall masculine development gynaecomastia, and is sterile?

A) Down's syndrome B) Turner's syndrome C) Klinefelter's syndrome D) Edward syndrome Answer: C) Klinefelter's syndrome Explanation:... View Article

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time is first observed in

A) Gymnosperms B) Liverworts C) Mosses D) Pteridophytes Answer: D) Pteridophytes Explanation: The female gametophyte with the developing... View Article

Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder. It causes wheezing due to

A) reduction in the secretion of surfactants by pneumocytes B) benign growth on mucous lining of nasal cavity C) inflammation of bronchi and... View Article

Which of the following protocols did aim for reducing emission of chlorofluorocarbons into the atmosphere?

A) Geneva Protocol B) Montreal Protocol C) Kyoto Protocol D) Gothenburg Protocol Answer: B) Montreal Protocol Explanation: Montreal protocol... View Article

What is the fate of the male gametes discharged in the synergid?

A) One fuses with the egg and other fuses with central cell nuclei. B) One fuses with egg other(s) degenerate(s) in the synergid. C) All fuse... View Article

Which of the following is the most important cause for animals and plants being driven to extinction?

A) Alien species invasion B) Habitat loss and fragmentation C) Drought and floods D) Economic exploitation Answer: B) Habitat loss and... View Article

Which of the following pair of organelles does not contain DNA?

A) Nuclear envelope and Mitochondria B) Mitochondria and Lysosomes C) Chloroplast and Vacuoles D) Lysosomes and Vacuoles Answer: D) Lysosomes... View Article

Which of the following ecological pyramids is generally inverted?

A) Pyramid of biomass in a sea B) Pyramid of numbers in grassland C) Pyramid of energy D) Pyramid of biomass in a forest Answer: A) Pyramid... View Article

Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for

A) Making tubes and pipes B) Making plastic sacks C) Use as a fertilizer D) Construction of roads Answer:D) Construction of roads... View Article

What is the direction of movement of sugars in phloem?

A) Bi-directional B) Non-multidirectional C) Upward D) Downward Answer: A) Bi-directional Explanation: Leaves prepare carbohydrates by... View Article

Select the correct option regarding ribs

A) There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs. B) 8th, 9th and 10th pairs of ribs... View Article

The frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes was explained by

A) Sutton Boveri B)H. Morgan C) Gregor J. Mendel D) Alfred Sturtevant Answer:D) Alfred Sturtevant Explanation: Alfred Sturtevant was a... View Article

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Archives

Which of the following features of genetic code does allow bacteria to produce human insulin by recombinant DNA technology?

What is the genetic disorder in which an individual has an overall masculine development gynaecomastia, and is sterile?

From evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time is first observed in

Due to increasing air-borne allergens and pollutants, many people in urban areas are suffering from respiratory disorder. It causes wheezing due to

Which of the following protocols did aim for reducing emission of chlorofluorocarbons into the atmosphere?

What is the fate of the male gametes discharged in the synergid?

Which of the following is the most important cause for animals and plants being driven to extinction?

Which of the following pair of organelles does not contain DNA?

Which of the following ecological pyramids is generally inverted?

Polyblend, a fine powder of recycled modified plastic, has proved to be a good material for

What is the direction of movement of sugars in phloem?

Select the correct option regarding ribs

The frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes was explained by

Pinus seed cannot germinate and establish without fungal association. This is because

Concanavalin A is

What map unit (Centimorgan) is adopted in the construction of genetic maps?

What is the site of perception of photoperiod necessary for induction of flowering in plants?

Drug called Heroin is synthesized by

Which of the following sexually transmitted diseases is not completely curable?

Select the hormone-releasing Intrauterine Devices