Agricultural Entomology MCQ Question and Answer | Agriculture MCQ Question

Tunica propria is an inner layer of Ovariole.
The inner cell layer is called the tunica propria which is an elastic membrane containing fine fibrils. It surrounds the whole of the ovariole including the terminal filament.
It is a fairly thick layer at first, but when the ovariole enlarges during vitellogenesis it becomes stretched and very thin.

Barnase, barstar and bar genes are used for developing genetically modified Mustard.
Barnase-barstar gene system was used to develop a line of non-self-fertilizing transgenic mustard (Brassica juncea) plants with enhanced outbreeding capability.
The barnase-barstar transgene-based hybrid seed production technology has been commercially deployed in crops like Brassica napus.
The system utilizes the expression of the barnase gene, encoding cytotoxic RNase protein in the tapetum cells to make one of the combiner's males sterile.

The striped eye theory was given by Roonwal.
Eye stripes and other pigment patterns in the compound eyes of grasshoppers were called to their physiological, biological, and applied importance by Roonwal that work was accelerated in some species, e.g., the Desert Locust, Schistocerca gregaria, eye-stripes are excellent indicators of polymorphism and population flux.

Peritrophic membrane is present in Midgut.
The peritrophic membrane (PM) is an anatomical structure surrounding the food bolus in most insects.
The peritrophic membranes are formed by secretion of the midgut epithelium. They consist of a network of chitin-containing microfibrils embedded in a matrix of proteins, glycoproteins, and proteoglycans. The thickness of the peritrophic envelope is 280 nm.

A foot sprayer is an example of high volume sprayer.
High volume sprayer provides more than 400 litres /ha, Low volume sprayer (5 to 400 litres/hectare) Ultra low volume sprayer (ULV) spray (less than 5 litres/hectare).
The foot sprayer is one of the ideal and versatile sprayers used for multipurpose spraying jobs. The sprayer consists of a pump operated by the foot lever, suction hose with strainer, delivery hose, spray lance fitted with shut off pistol valve, gooseneck bend and adjustable nozzles.

Indian mole rat is zoologically known as Bandicota bengalensis.
The lesser bandicoot rat, Sindhi rice rat, Bengal rat, or Indian mole-rat (Bandicota bengalensis) is a giant rat of Southern Asia, not related to the true bandicoots which are marsupials.
Bandicota bengalensis (Indian Mole Rat) is a species of rodent in the family of murid rodents. They are found in the palearctic and the indo-malayan realm. They are solitary omnivores. Individuals can grow to 47 mm.

Fore wings possess a well-developed area "Embolium" in Anthocoridae.
Embolium is a narrow piece on the costal margin of the corium of the wings of certain true bugs.
An outer or marginal part of the corium is found in the hemelytra of certain heteropterous insects.

Bumble bee is an efficient pollinators.
The bumblebee is a more efficient pollinator at the individual level. It provides highly valued pollination services for a wide variety of crops and ranks as the most frequent single species of pollinator for crops worldwide.
Bumblebees are important pollinators of both crops and wildflowers. Bumblebees are increasingly cultured for agricultural use as pollinators, among other reasons because they can pollinate plants such as tomato in greenhouses by buzz pollination.

All known PPN nematodes possess Stylet.
A stylet is a hard, sharp, anatomical structure found in some invertebrates.
The word stylet or stomatostyle is used for the primitive piercing mouthparts of some nematodes. In these groups, the stylet is a hardened protrusible opening to the stomach.
These stylets are adapted for the piercing of cell walls and usually function by providing the operative organism with access to the nutrients contained within the prey cell.

Pharoschimnus horni is a Coccinelid predator.
Coccinellidae is a widespread family of small beetles. Many of the species have conspicuous aposematic colours and patterns, such as red with black spots, that warn potential predators that they are distasteful.
Coccinellids are best known as predators of Sternorrhyncha such as aphids and scale insects. Most predatory coccinellids include other items in their diets, such as honeydew, pollen, plant sap, nectar and fungi.