Agriculture MCQs

2794 MCQs  (Page 223 of 280)

The crossing of a yomozygous tall plant and a homozygous dwarf plant would yield plants in the ratio of_________________?
A. 2 tall: 2 dwarf
B. All homozygous dwarf
C. All the heterozygous tall
D. One homozygous tall, one homozygous dwarf, two heterozygous tall
In crop improvement programmed haploids are of great importance because they__________________?
A. Are useful in studies on meiosis
B. Give homozygous lines following diplodization
C. Grow better under adverse conditions
D. Require only about half the amount of chemical fertilizers compared to diploids
Linkage of hereditary units was discounted by__________________?
A. W. batson and b.c pun net
B. T.b. morgan and g. mendel
C. W.s. sutton and k. r. porter
D. C.b. bridges and g.h. shull
Gynandromorphy in Drosophila because of_________________?
A. Loss of x-chromosome
B. Kappa particles
C. Inheritance
D. Gain of y-chromosome