A. Gene flow
B. Genetic drift
C. Gene frequency
D. None of the above
Related Mcqs:
- The spread of genes from one breeding population to another by migration which may result in changes in gene frequency is called________________?
A. Gene flow
B. Genetic drift
C. Gene frequency
D. None of the above - The suppression of the action of a gene or genes by a gene or genes not allelomorphic to these suppressed is known as __________________?
A. Episode
B. Co dominance
C. Epistasis
D. Dominance - If the frequency of a dominant phenotype in a stable population in 75% the frequency of the dominant allele in that population is____________________?
A. 50%
B. 75%
C. 25%
D. 40$ - When a wheat variety with red kernels (homozygous for two non allelic and independent dominant genes) is crossed with white kenneled wheat (homozygous for two recessive non allelic independent genes), the phenotypic ratio in the F2 generation would be________________?
A. 9:3:3:1
B. 9:7
C. 9:9:9:3:3:3:1
D. 1:4:6:4:1 - A gene which enhances the natural mutations rate of another gene in the same genome is kanown as___________________?
A. Mutable gene
B. Mutator gene
C. Recepror gene
D. Articulator gene - Concept of gene for gene hypothesis was developed in____________________?
A. Linseed
B. Oat
C. Gram
D. Tomato - Gene for gene hypothesis was proposed by__________________?
A. Nelson (1973)
B. Flor (1956)
C. Robinson (1971)
D. Vander plank (1963) - Gene responsible for the synthesis of repressor is called__________________?
A. Operator gene
B. Structural gene
C. Regulator gene
D. Promotor gene - In a population gene frequencies remain constant when there is_________________?
A. Iubreeding
B. Out breeding
C. Random mating
D. Selective mating - In random mating population gene frequencies remain constant generation after generation in the absence of__________________?
A. Mutation
B. Selection
C. Migration
D. Random drift
