“Explore the world of biotechnology, where science and technology combine to develop innovative solutions in healthcare, agriculture, and environmental sustainability.”
Chapter 9 Biology class 12th Notes
The means by which recombinant DNA is introduced into a host call is called: Vector
Commonly enzyme thermus aquatious is also known as: Taq polymerase
DNA finger prints can also be used as: Forensic evidence
DNA threads are chemically cut into pieces of different sizes in: Sanford’s method
In 1970 Hamilton D.Smith at Johns Hopkins University isolated the first: Restriction enzyme
Chances for a son or daughter in human birth are: 1:1 between son and daughter
Cystic fibrosis patients lack a gene that codes for trans-membrane carrier of the: Chloride ion
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
A probe is a single stranded nucleotide sequence that will hybridize (pair) into a certain piece of: DNA
Commonly used restriction enzyme is: EcoR1
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 any of the groups A,B,AB, O
Genes that code for therapeutic and diagnostic proteins are incorporated into the animal’s DNA and the proteins appear in the animal’s: Milk
An ezyme that can be used to treat a human Iysosome storage disease is: a-galactosidase
Bolld group B phenotype contains anti-A antiboides in the serum and agglutinates any RBC with antigen: B
How many different kinds of the gametes will be formed by an ndividual , who is hetrozygous for four gene pairs: 8
It is estimated that human genome could take an encyclopaedia of 200 volumes each with: 10,000 pages
Inheritance of skin colour in man is controlled by eight pairs of genes , which are: Multiple alleles
German botanist Gottlieb Haberlandi said in 1902 that plant cells are: Totipotent
When expression of a biological character is observed in variable intensity, it is due to the efect of: Epitasis
Awoman with normal colour vision, whose father was red-green colour blind, married a red-green colour-blind man. What is the probality of her first-born child being red-green colour blind: 0.5
A callus is an undifferentiated group of: Cells
PCR takes its name from: DNA polymerase
A full set of genes of an individual is called: Genome
In 1999,transgenic crops were planted world wide on more than: 70 millions areas
Adult transgenic tobacco plants glowed when sprayed with the substrate: Luciferin
DNA Finger prints can be separated from: Blood
Urine is preferable vehicle for a biotechnology product than: Milk
Taqpolymerase are enzyme present in: Bacteria
The number of linkage group in man is: 23
PCR takes its name from: DNA polymerase
When expression of a biological character is observed in variable intensity, it is due to the efect of: Epitasis
Growth of tissue in an artificial liquid culture medium is termed as: Tissue culture
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: 0.50
The first restriction enzyme was isolated by: Hamilton O. smith
The enzyme which joins the two pieces of DNA is: DNA ligase
Important : Review all previous years’ 12 class past papers for comprehensive practice and better exam preparation.