An operon is constituted by:
A.Operator genes
B.Promotor genes
C.Regulator genes
D.All of these
Category: Cytogenetics Mcqs
Linkage was first suspected by:
A.Bateson and Punnet
B.Sutton and Boveri
C.Beadle and Tatum
D.All of these scientists
Linkage is:
A.Tendency of two genes to remain together during process of inheritance
B.Tendency of two individual to remain together
C.Tendency of two different chromosomes to remain together
D.None of these
Spacer in chromosomes is associated with:
A.H1
B.H3
C.H2a
D.None of these
Which of these is carrier of genetic information:
A.tRNA
B.DNA
C.mRNA
D.Nucleoproteins
Amount of DNA in all cell of body is:
A.Constant
B.Variable
C.Constant or variable
D.None of these
An individual with two identical members of a pan or genetic factors is called:
A.Heterozygote
B.Homozygote
C.Hybrid
D.None of these
In chromosomes the material controlling heredity is:
A.Histones
B.DNA
C.Chromocentres
D.RNA
Chromosomal theory of linkage was given by:
A.Miescher
B.Mendel
C.Muller
D.Morgan
In test cross between hybrids of F1 generation of gray body long winged and black body vestigial winged parents Morgan found which of these ratios:
A.1:1:1:1
B.25:25:25:25
C.46:37:8:9
D.None of these
