A. Affects more than five characters
B. Affects more than ten characters
C. Affects only one character
D. Affects more than one character
Plant Breeding and Genetics
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
The most recent evolved plant group is ………………..?
A. Confers
B. Mosses
C. grasses
D. Gymnosperm
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
Organism arise from existing forms by genetic variations is called……………..?
A. Mutation
B. Genetics
C. Genetics
D. Hybridization
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
Episodes may be factor in………………..?
A. Dominance
B. Cytoplasm inheritance
C. Incomplete dominance
D. Chromosomal inheritance
A useful process for determining whether an individual is homozygous or heterozygous is…………………?
A. Cross breeding
B. Back crossing
C. Self fertilization
D. Inbreeding
Mutant allele that has little or no effect on the expression of a tart is known as…………………?
A. Atavism
B. Auxotroph
C. Axoneme
D. Armor