Polyamides are synthetic polymers commonly known as:
- (A)Â Synthetic rubber
- (B)Â Nylo
- (C)Â Cellulose
- (D)Â Protein
- (B)Â Nylo
Telephone was invented in 1876 in America by:
- (A)Â Marconi
- (B)Â Galileo
- (C)Â John Beard
- (D) Graham Bell
- (D) Graham Bell
Information can be sent over long distance in the form of:
- (A)Â Electrical signals through wires
- (B) Light signals through optical fiber
- (C)Â Radio waves through air
- (D)Â Any combination of these three
- (D)Â Any combination of these three
Information can be stored in:
- (A)Â Audio and video cassettes
- (B)Â Floppy and compact discs
- (C)Â Hard disks
- (D)Â Laser and Optical disks
- (E) All of these four
- (E) All of these four
Computer can:
- (A)Â Add and subtract information only
- (B)Â Add, subtract and sort information only
- (C)Â Add, subtract, sort and classify information
- (D)Â Add and subtract but cannot sort information
- (C)Â Add, subtract, sort and classify information
IBM stands for:
- (A)Â International Business Machines
- (B)Â International Big Machines
- (C)Â International Business Machines
- (D)Â Interrelated Big Machines
- (A)Â International Business Machines
Chemicals used to kill weeds are called as:
- (A)Â Insecticides
- (B)Â Fungicides
- (C)Â Herbicides
- (D)Â Fumigants
- (C)Â Herbicides
The cytoplasm consists of several types of structures, which are called:
- (A)Â Protoplasm
- (B)Â Nucleus
- (C)Â Cytochromes
- (D)Â Organelles
- (D)Â Organelles
The structure of DNA was elaborated by Watson and Crick in:
- (A)Â 1909
- (B)Â 1923
- (C)Â 1945
- (D)Â 1953
- (D)Â 1953
In a DNA molecule, the rule for bas pairing is:
- (A)Â Adenine always bound with thymine and cytosine with guanine
- (B)Â Adenine always bound with cytosine and thymine with guanine
- (C)Â Adenine always bound with guanine and cytosine with thymine
- (D)Â Adenine always bound with uracil and cytosine with guanine
- (A)Â Adenine always bound with thymine and cytosine with guanine