A married couple adopted a male child. A few years later, twin boys were born to them. The blood group of the couple is AB positive and O negative. The blood group of the three sons is A positive, B positive, and O positive. The blood group of the adopted son is?
Prelims
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Science and Technology › Biology,Human Physiology
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Science and Technology › Chemistry
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Science and Technology › Emerging TechXCommunication
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Science and Technology › Emerging TechXCommunication
What is a “Virtual Private Network”?
Options
Answer
(B)
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Science and Technology › Emerging TechXIT
Science and Technology › Emerging TechXIT
A new optical disc format known as the Blu-ray disc is becoming popular. In what way is it different from the traditional DVD?
1. DVD supports standard definition video while Blu-ray disc supports high-definition video.
2. Compared to a DVD, the Blu-ray disc format has several times more storage capacity.
3. Thickness of Blu-ray discs is 2.4 mm while that of DVD is 1.2 mm.Options
Answer
(B)
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Science and Technology › Genetics,Biotechnology
Science and Technology › Genetics,Biotechnology
At present, scientists can determine the arrangement or relative positions of genes or DNA sequences on a chromosome. How does this knowledge benefit us? 1. It is possible to know the pedigree of livestock. 2. It is possible to understand the causes of all human diseases. 3. It is possible to develop disease-resistant animal breeds.
Options
Answer
(C)
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Science and Technology › Nuclear Energy Technology
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Science and Technology › PhysicsXGeneral
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Science and Technology › PhysicsXLight energy
Science and Technology › PhysicsXLight energy
What is the difference between a CFL and a LED lamp? 1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semiconductor material. 2. The average lifespan of a CFL is much longer than that of a LED lamp. 3. A CFL is less energy efficient as compared to an LED lamp.
Options
Answer
(C)