naphthalene balls are used in a box having clothes to protect clothes from insects .After s few days the size of the ball gradually. descrease and unlimately they disappear .How does it happen ? explain with reason​

answer; ///(b) it is composed of four protein chains and four heme groups;

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.