12th Class Biology MCQS Biotechnology

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Adult transgenic tobacco plants glowed when sprayed with the substrate
Luciferase
Luciferon
Luciferin
Luciferol

In 1999,transgenic crops were planted world wide on more than
70 millions areas
35 millions areas
90 millions areas
20 millions areas

A full set of genes of an individual is called
Allelomorph
Genomic library
Genotype
Genome

PCR takes its name from
Endonuclease
DNA polymerase
DNA ligase
RNA polymerase

A callus is an undifferentiated group of
Tissues
Cells
Systems
Organs

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?
1
0.025
0.75
0.5

When expression of a biological character is observed in variable intensity, it is due to the efect of:
Codominance
Polygenic inheritance
Multiple alleles
Epitasis

German botanist Gottlieb Haberlandi said in 1902 that plant cells are
Totipotent
Potent
Totipersausive
Totistrong

Inheritance of skin colour in man is controlled by eight pairs of genes , which are:
Codominent
Multiple alleles
Linked
Assorting independently

It is estimated that human genome could take an encyclopaedia of 200 volumes each with
1000 pages
100 pages
10,000 pages
10 pages

How many different kinds of the gametes will be formed by an ndividual , who is hetrozygous for four gene pairs:
8
16
20
30

Bolld group B phenotype contains anti-A antiboides in the serum and agglutinates any RBC with antigen:
AB
A
B
O

An ezyme that can be used to treat a human Iysosome storage disease is
Glucosidase
B-galactosidase
a-galactosidase
Invertase

What are the penotypes of the parent of a colour-blind son and non-carries daughter with normal colour vision?
FATHERMOTHER

NormalCarrier