Agriculture MCQs

2794 MCQs  (Page 225 of 280)

Evolution may be described as___________________?
A. History of development of larger biological units
B. Cntinuous genetic variation
C. Inheritance of acquired characters
D. Discontinuous genetic variation
Mendel was lucky to use pea plants for genetical experiments because__________________?
A. They showed one type of flowers
B. They belong to the family leguminous
C. The seven characters he studied were on different chromosomes
D. They have round seeds with lot of proteins
Polyploidy is most likely to result from ____________________?
A. Occurrence of crossing over
B. The crossing over between non homologous chromosomes
C. Occurrence of karyokinesis
D. The failure of homologous chromosomes to separate during meiosis
Apheliotropic gene is one which___________________?
A. Affects more than five characters
B. Affects more than ten characters
C. Affects only one character
D. Affects more than one character
haploids are better for mutation studies because in them all the mutations whether recessive or dominant are expressed as_______________?
A. There are many alleles of each gene in each call
B. There are two alleles of each gene in each cell
C. There is only one alleles of each gene present in each cell
D. Non3e4 of the above