Many serious diseases can be passed from parent to offspring through genes. in which case given below is a recessive disease not able to be passed on?

if one parent has one allele or has no alleles for the disease
if one parent has zero, one, or both alleles for the disease
if one parent has no alleles for the disease
if one parent has both alleles for the disease only

the answer is if one parent has no allele

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.