Cytogenetics Linkage Crossing Over 1 Online Exam Quiz
Cytogenetics Linkage Crossing Over 1 GK Quiz. Question and Answers related to Cytogenetics Linkage Crossing Over 1. MCQ (Multiple Choice Questions with answers about Cytogenetics Linkage Crossing Over 1
Double crossovers can involve two, three or four strands at a time. What will be the resultant percentage of recombined genes to normal genes in between which recombination occurred, taking all three types in consideration?
Options
A : 0%
B : 50%
C : 70%
D : 90%
In animals cytological study of recombination was done by_______________
Options
A : Barbara McClintok
B : Stern
C : Creigton
D : Mandel
If you suddenly observe linkage between two genes that are present in two chromosomes, this can be due to __________________
Options
A : Coupling
B : Translocation
C : Inversion
D : Non-homologous end joining
Linkage ________ as the distance between two genes ______________
Options
A : Decreases, decreases
B : Unaffected, Decreases
C : Decreases, Increases
D : Increases, Increases
Linkage results in __________
Options
A : Formation of more Dominant phenotype
B : Formation of more Wild phenotype
C : Formation of more parental phenotype
D : Formation of more recombinant phenotype
You cross a p+/v+ p+/v+ male drosophila to a p-/v- p-/v- and obtain the F1 hybrid. Now you cross the F1 male with double recessive female. What will be the recombination phenotype in F2?
Options
A : p+/v+ p-/v- only
B : p+/v+ p-/v- and p-/v- p-/v-
C : p+/v+ p-/v- and p-/v- p-/v- also p+/v- p-/v- and p-/v- p-/v-
D : p+/v+ p-/v- and p-/v- p-/v- also p-/v+ p-/v- and p-/v- p-/v-
Recombination occurs in _________
Options
A : Single strand stage
B : Two strand stage
C : Three strand stage
D : Four stand stage
In Drosophila males there is complete linkage. What is the reason behind this?
Options
A : The genes are very closely located
B : Coupling theory
C : No synapsis
D : Unknown reason
The tendency of linkage is directly proportional to the rate of crossing over between two genes.
Options
A : True
B : False
C :
D :
Accurate mapping of genes can be done using _______
Options
A : Two point mapping
B : Three point mapping
C : Single gene mapping
D : None of the mentioned
Chemical Engineering Basics - Part 1 more Online Exam Quiz
Cytogenetics Interview Experienced
Cytogenetics Interview Freshers
Cytogenetics Meiosis 1 Metaphase Anaphase Telophase
Cytogenetics Meiosis Prophase 1 Leptotene