NEET Zoology Strategies for Enhancement in Food Production MCQs

A hypothetical organism exhibits a unique life cycle. The diploid sporophyte produces haploid spores through meiosis. These spores develop into a multicellular gametophyte that produces gametes through mitosis. If a mutation occurs in a somatic cell of the sporophyte, which of the following is most likely?

In a population exhibiting Hardy-Weinberg equilibrium, the frequency of a recessive allele for a certain trait is 0.4. A new environmental pressure arises, causing the homozygous recessive genotype to have a relative fitness of 0.5. What will be the frequency of the recessive allele after one generation under this new selection pressure?

A breeder is trying to develop a new variety of wheat resistant to a specific fungal pathogen. They have identified a wild relative of wheat that exhibits resistance but has poor yield. Which breeding strategy is MOST likely to introduce the resistance gene into the high-yielding cultivated variety while minimizing the transfer of undesirable traits from the wild relative?

Which breeding method is MOST suitable for improving the protein content of a crop variety that already possesses high yield and disease resistance but suffers from low protein?

In a breeding program aiming to develop a new variety of rice with increased grain size and resistance to a particular bacterial blight, which combination of breeding techniques would be MOST effective?

A plant breeder wants to introduce a dominant gene for aphid resistance from a wild relative into a high-yielding cultivar. The wild relative, however, has several undesirable traits. Which strategy minimizes linkage drag?

A breeder aims to develop a new tomato variety resistant to both fungal wilt and a viral disease. They have identified resistant varieties for each disease separately. Which strategy is the MOST efficient for combining both resistance traits into a single high-yielding variety?

A poultry farmer observes a sudden drop in egg production in his flock accompanied by ruffled feathers, watery diarrhea, and respiratory distress. Which of the following diseases is the MOST likely cause, considering its high mortality and rapid spread?

A beekeeper notices a significant decline in his honeybee population, with bees exhibiting abnormal wing development and weakened immune systems. Upon further investigation, he finds deformed mites within the colony. Which of the following is the MOST likely culprit?

A fish farmer observes increased mortality in his tanks, with fish showing symptoms of hemorrhagic septicemia, including skin lesions, fin rot, and internal bleeding. Which bacterial pathogen is the MOST likely cause of this outbreak?