……….favors individual with trait that are best adapted to their environment and enable them to change when environment change.
a) Artificial selection
b) Natural selection
c) Genetic recombination
d) Mutation
Natural selection is the change……….changes.
a) light
b) air
c) environment
d) atmosphere
Variation are produced due to………..…among individuals.
a) genetic difference
b) evolution
c) selection
d) mutation
……………also cause variation.
a) Deletion
b) Proteins
c) Environmental conditions
d) None of these
Gametes are produced by…………………….
a) mitosis
b) meiosis
c) both a and b
d) none of these
Gametes are produced by meiosis in which….. chromosomes separate.
a) different
b) homologous
c) parallel
d) none of these
