Agricultural Entomology - Study Mode

[#151] . . . . . . . . are substance, which make the plant distasteful to the insects feeding on it.
Correct Answer

(D) Antifeedant

Explanation

Solution: Antifeedants are substances, which make the plant distasteful to the insects feeding on it. Antifeedants are organic compounds produced by plants to inhibit attack by insects and grazing animals. These chemical compounds are typically classified as secondary metabolites in that they are not essential for the metabolism of the plant, but instead confer longevity.

[#152] Ovipositor longer than body can be found in
Correct Answer

(C) Ichneumonidae

Explanation

Solution: Ovipositors longer than the body can be found in Ichneumonidae. Ovipositors longer and more slender than stingers of aculeate wasps. Ichneumonid females have an unmodified ovipositor which they use to lay eggs inside or on their host. Ichneumonids generally inject venom along with the egg, but only larger species with relatively short ovipositors use the ovipositor in defense. Ovipositors modified for prey capture and defense, and do not pass their eggs along the stinger.

[#153] IINRG is located at?
Correct Answer

(A) Ranchi

Explanation

Solution: IINRG is located in Ranchi. The Indian Institute of Natural Resins and Gums formerly known as the Indian Lac Research Institute, is an autonomous institute, established under the umbrella of Indian Council of Agricultural Research (ICAR) by the Ministry of Agriculture, Government of India for advanced research on lac and other natural resins and gums. The Institute is located at Namkum, Ranchi in Jharkhand, India. The Institute was mandated to focus its attention on crop harvesting and tapping, produce processing, development of products, training, information repository, technology dissemination and liaison with other national and international agencies.

[#154] Earias vitella is the pest of
Correct Answer

(C) Cotton

Explanation

Solution: Earias vitella is the pest of Cotton. Spotted bollworm, Earias vittella (Fab.), is one of the most important insect pests of cotton, and host plant resistance is an important component of the management of this pest. Earias vittella, an Asian "spotted bollworm", is a moth species in the family Nolidae. The species was first described by Johan Christian Fabricius in 1794. Most records are from Asia, Australia and certain Pacific islands.

[#155] Replication of DNA by rolling circle mechanism give rise to a
Correct Answer

(D) Concatamer

Explanation

Solution: Replication of DNA by rolling circle mechanism gives rise to a Concatamer. A concatemer is a long continuous DNA molecule that contains multiple copies of the same DNA sequence linked in series. Concatemers are frequently the result of rolling circle replication, and may be seen in the late stage of bacterial infection by phages. In rolling circle replication, a circular template of DNA is replicated as a long single-stranded DNA concatamer that spools off when a strand displacing polymerase traverses the circular template.