12th Class Biology MCQS Biotechnology

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FOCUSKEYWORD


Genes that code for therapeutic and diagnostic proteins are incorporated into the animal’s DNA and the proteins appear in the animal’s
Milk
Blood
Sweat
Urine

A man bolld group A marries a women of blood goroup B and they have one child. Which one of the following statements abo ut the child’s blood is correct?
It could be group A only
It could be group A or Group B only
It could be any of the groups A,B,AB, O
It could be group AB only

Commonly used restriction enzyme is
Eco R3
Ecor4
EcoR1
EcoR2

A probe is a single stranded nucleotide sequence that will hybridize (pair) into a certain piece of
DNA
Amino acid
Fatty acid
RNA

Two parents, each of blood groups A, have a daughter of blood group O. what is the probality that their next child who has blood gorup O?
0.5
0.125
0.75
0.25

Cystic fibrosis patients lack a gene that codes for trans-membrane carrier of the
Potassium ion
Sodium ion
Chloride ion
Calcium ion

Chances for a son or daughter in human birth are:
None of them
1:1 between son and daughter
1:3 between son and daughter
3:1 between son and daughter

In 1970 Hamilton D.Smith at Johns Hopkins University isolated the first
Restriction enzyme
DNA ligase
Diastase
DNA polymerase

DNA threads are chemically cut into pieces of different sizes in
Sanford’s method
Sanger’s method
Maxam-Gilbert method
Smith’s method

DNA finger prints can also be used as
Litigation evidence
Crime evidence
Forensic evidence
Offence evidence

Commonly enzyme thermus aquatious is also known as
Taq polymerase
Taq ligase
RNA polymerase
DNA polymerase

The means by which recombinant DNA is introduced into a host call is called
Lifter
Carrier
Vector
Plasmid