Agriculture MCQs

2794 MCQs  (Page 226 of 280)

Which of the following had great influence on Drawing during during formulation of his theory of natural selection_________________?
A. Lamark’s idea on inheritance of acquired character’s
B. Mathis’s essay on population
C. Mendes’s experiment on pea
D. De vries theory of mutation
The organic evolution look place about__________________?
A. 100,000,000 years
B. 200,000,000 ears
C. 300,000,000 years
D. Still occurring
In a monohybrid cross, 2 heterozygous individuals were crossed, phenotypic ratio came to be (2:1), it is due to__________________?
A. Dominant lethal genes in heterozygous individuals
B. Dominant lethal genes in homozygous individuals
C. Dominant epistasis
D. None of the above
Presence of slight differences in identical twins support the hypothesis that___________________?
A. Single gene may produce multiple effects
B. Dominance may be incomplete
C. The environment effects the expression of genetic character
D. Genetic trails are influence by many genes