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The correct choice is (b) ISINGLASS

For explanation I would say: Isinglass is obtained from the air bladder of bony FISHES and is USED for clearing WINE and beer. Shagreen is the skin of cartilaginous fishes with placoid scales which is used to rub the material.

Correct choice is (b) Baking

The best explanation: Fish tends to decay soon. THEREFORE, it NEEDS to be preserved IMMEDIATELY after being caught. The various methods of preservation are chilling, freezing, deep freezing, salting, chemical preservation and CANNING.

Correct choice is (a) ANGUILLA

For explanation I would say: Anguilla is an edible marine water fish. The edible FRESHWATER fishes include Labeo ROHITA, Labeo calbasu, Catla catla, Wallago attu, CLARIAS batrachus, Mystus singhala, Heteropneustes heteropneustes.

Correct answer is (c) Mackerel

The EXPLANATION is: Mackerel is a marine water fish. Major freshwater fishes of India are Labeo ROHITA, Labeo calbasu, Catla catla, Wallaga attu, CLARIAS batrachus, MYSTUS singhala etc.

Correct OPTION is (a) True

Easy explanation: Culture fishery is the type of fishery practised in small water BODIES where fish is FIRST reared and then HARVESTED. Culture fishery is also called as fish FARMING or pisciculture.

The correct choice is (b) Capture fishery

Explanation: Capture fishery is the PRACTICE of only catching the fish available NATURALLY as in LARGE water bodies of lakes, reservoirs, tanks, etc. Marine FISHERIES are also CAPTURED fisheries.

The correct answer is (b) Labeo rohita

The BEST I can EXPLAIN: Labeo rohita is an edible freshwater fish. The edible MARINE fishes are Herpadon, Pomphret, SALMON, Anguilla, Hilsa, Mackerel, Sardinella. Out of these fishes, Pomphret is the most edible fish.

The correct OPTION is (d) Singhara

For explanation I would say: The MAJOR types of marine fish FOUND on Indian shores are HILSA, Sardinella, Harpodan, Stomateus, Mackerel, flying fish, RED mullet, Ribbonfish, Eel.

The correct answer is (b) Pisciculture

For EXPLANATION I would say: Management and rearing of FISHES only is called as Pisciculture. It further includes Mariculture and Inland fishery which is the culture of marine fishes and FRESHWATER fishes RESPECTIVELY.

Correct OPTION is (c) Rearing of aquatic animals having an outer shell

The EXPLANATION: Shell fishery is a capture, MANAGEMENT and exploitation of aquatic animals having an outer shell or a hard skeleton. They are of two main types- molluscs and arthropods especially crustaceans. Many of the shellfishes are also raised in aquaculture farms for higher productivity and ENSURED supply.

Correct answer is (a) Rearing of animals having fins

The best I can EXPLAIN: Fin fishery is the capture, MANAGEMENT and exploitation of aquatic animals having paired or unpaired fins. They are broadly divided into cartilaginous and bony FISHES. Cartilaginous fishes occur exclusively in the SEA which also CONTAINS a number of bony fishes.

Correct option is (b) Houseflies

Best explanation: Honey bee is attacked by wasps, wax moths, MITES, black ants, green bee-eater and king CROW. Nosema disease of honey bee is CAUSED by PROTOZOAN Nosema apis. Acrine disease is produced by parasitic mite Acarapsis woodii.

The correct choice is (b) False

The explanation is: As the colony grows in size, the queen stops secreting ANTIQUEEN substance. It ALSO produces some unfertilized eggs. New queen and drones develop. The old queen along with a part of the worker population leaves the HIVE and build a new one. This process is known as BEE swarming.

Right ANSWER is (a) Scout bees

To explain: Some forager bees function as scout bees that SEARCH for new feeding places. Scout bees communicate the position of a food source by ROUND dance if it is less than 75 m and tail wagging dance for LONGER distances.

Right choice is (d) Jelly

Explanation: Apiculture is highly USEFUL. It provides US with honey which is a near-neutral aromatic tonic, laxative and sweetening syrup. Beeswax is used in cosmetic creams, ointments, paints, polishes and smokeless decorative candles. Bee VENOM is used in the TREATMENT of Rheumatoid arthritis.

The correct option is (c) ANTIQUEEN pheromone

Best explanation: Queen secretes an antiqueen substance, a pheromone, from its glands. It inhibits worker bees to build another royal BROOD chamber and produce royal jelly for others. The queen LAYS 2000 fertilised eggs per day. Eggs hatch to GIVE RISE to new worker bees which are sexually sterile females.

Correct choice is (d) Drones

The best I can explain: Worker bees are differentiated into sanitary bees (early few DAYS), nurse bees (first month, feeding larvae and queen), farmer bees, guard bees, builder bees (producing bee wax, building and repair of the HIVE) and FORAGERS (COLLECTING honey).

Right option is (B) False

For explanation I WOULD SAY: Honey bee belongs to family Apidae, order Hymenoptera of class Insecta. Honey bee lives in natural or artificial nests called HIVES. A beehive has a number of hexagonal brood CELLS for rearing young bees, storage cells for storing food etc.

The correct option is (a) Apis mellifera

Easy explanation: Species of honey BEE found in INDIA are Apis dorsata, Apis indica and Apis florea. Apis mellifera is an Italian or a European bee which was introduced in India due to its very high quality and QUANTITY of honey. It is ALSO the most DOCILE of all the species.

Correct answer is (b) Hives

For explanation: Honey bee lives in natural or ARTIFICIAL nests called hives. Natural hives hang down from tree BRANCHES, the roof of caves, balconies and other EXTENSIONS of buildings. Artificial HIVE or bee box is a metallic hollow box with chambers, slit-like platform and a STAND with legs.

The correct choice is (d) Breeding high-quality meat-yielding bulls

Easiest EXPLANATION: High milk-yielding breeds of females and high quality (LEAN meat with less lipid) meat- yielding bulls have been bred successfully to increase herd size of cattle in a SHORT time. MOET technology has been demonstrated for cattle, sheep, rabbits, buffaloes, MARES, ETC.

Correct option is (d) Multiple Ovulation Embryo Transfer TECHNOLOGY

The EXPLANATION is: MOET STANDS for Multiple Ovulation Embryo Transfer Technology. Often the success rate of crossing mature male and female animals is fairly low even though ARTIFICIAL INSEMINATION is carried out. To improve the chances of a successful production of hybrids, MOET is one of the programmes for herd improvement.

The CORRECT choice is (c) The animal is mated with a NORMAL bull

The explanation: In MOET, a cow is ADMINISTERED hormones, with FSH like activity, to INDUCE follicular maturation and superovulation-instead of ONE egg, which they normally yield per cycle, they produce 6-8 eggs. The animal is either mated with an elite bull or is artificially inseminated.

Right CHOICE is (b) False

Easiest EXPLANATION: In MOET, the fertilised EGGS at 8-32 cells STAGE, are recovered non-surgically and transferred to surrogate mothers. The genetic mother is now AVAILABLE for another round of superovulation.

The correct choice is (a) Semen can only be stored in hot water

To explain: In artificial insemination, the semen may be used immediately or can be frozen and used at a later date. It can also be transported in a frozen FORM to where the female is housed. In this way, DESIRABLE MATINGS are CARRIED out.

The correct answer is (a) True

Easiest explanation: Artificial insemination is USUALLY used instead of natural mating because it can be carried out at anytime and anywhere. It is the most hygienic and economical technique with the provision of KEEPING MALES in protected places with environment most SUITABLE to them.

Right option is (d) interspecific hybridisation

To elaborate: Mule is an EXAMPLE of Interspecific hybridisation, where male and FEMALE animals of two DIFFERENT species are mated. Mule is produced by the cross of a Female horse and a male donkey. It is considered to be of CONSIDERABLE economic value.

Right choice is (b) Punjab

Easiest explanation: Hisardale is a new breed of sheep developed in Punjab by crossing Bikaneri ewes and Marino rams. It is an example of Cross-breeding where breeds are subjected to some form of inbreeding and selection to develop new stable breeds that MAY be SUPERIOR to the existing breeds.

The correct choice is (b) Out-crossing

Explanation: Out-crossing is the practice of mating of ANIMALS within the same breed, but having no common ANCESTORS on either side of their pedigree. The offspring of such a mating is known as an outcross. It is the best BREEDING METHOD for animals that are below average in PRODUCTIVITY in milk production, the growth rate in beef cattle, etc.

Correct ANSWER is (a) Undesirable qualities of two breeds are combined

Easy EXPLANATION: Cross-breeding is the mating between superior animals of different breeds for raising new breeds or improving new breeds. Cross-breeding ALLOWS the desirable qualities of two different breeds to be combined. The progeny may ALSO be used for commercial production. It is also done to develop new stable breeds.

The correct answer is (c) Inbreeding

The explanation: Out-breeding is the breeding of the unrelated animals which MAY be between individuals of the same breed but having no common ancestors for 4-6 GENERATIONS (Out-crossing) or between different BREEDS (Cross-breeding) or different species (INTERSPECIFIC hybridisation).

The CORRECT OPTION is (d) Inbreeding

Explanation: Inbreeding increases homozygosity, THUS inbreeding is necessary if we want to evolve a pure LINE in any animal. Inbreeding also exposes harmful recessive genes that are eliminated by selection. It also helps in the accumulation of superior genes and the ELIMINATION of less desirable genes.

Correct option is (a) Out-crossing

To explain I would SAY: CONTINUED inbreeding, especially close inbreeding, USUALLY REDUCES fertility and even productivity. This is called inbreeding depression. Whenever this becomes a problem, selected animals of the breeding population should be mated with unrelated animals of the same BREED. This is called as outcrossing and it often helps to overcome inbreeding depression.

Correct choice is (b) False

The best I can EXPLAIN: When breeding is between animals of the same breed, it is CALLED INBREEDING, while crosses between different breeds are called outbreeding. Also, inbreeding is the mating of two related SPECIES while outbreeding is the mating of two unrelated species.

The CORRECT choice is (a) Mating of closely related species

To explain I would say: Inbreeding REFERS to the mating of more closely related individuals within the same BREED for 4-6 generations. The breeding strategy is as follows-superior MALES and superior FEMALES of the same breed are identified and mated in pairs.

Correct choice is (c) Having long ears

The explanation: ANIMALS are selected for breeding on the basis of quality and quantity of yield, the ratio of yield to diet, duration of reproductive period and lactation, mammary system and UDDER and DISEASE RESISTANCE.

Right OPTION is (a) Animals related by descent

The BEST explanation: A GROUP of animals related by descent and similar in most characters LIKE general appearance, features, size, configuration, etc., are said to belong to a BREED.

The correct option is (d) Ghagus

The explanation: Presently, in India, about 80% of the chicken are REARED from THREE exotic breeds-Rhode Island Red, WHITE LEGHORN (for eggs) and Plymouth Rock (for broilers). Crosses have been made between exotic and indigenous breeds in order to increase immunity against DISEASES.

The CORRECT option is (d) Alcohol

Best EXPLANATION: Egg CONTAINS 12.9% of protein. It contains 11.5% of lipids which is MOSTLY found in the egg yolk. It contains 0.2-0.7% of carbohydrates. Egg contains almost all minerals and VITAMINS.

The CORRECT answer is (b) False

For EXPLANATION: Dual purpose breeds are the breeds which are RAISED both as BROILERS as WELL as layers. Usually, males of dual-purpose breeds are raised as broilers while the females are raised as layers.

Right choice is (a) Busra

For explanation: Busra is an INDIAN breed of Poultry. Other examples include Ghagus, Aseel, Chittagong, COCHIN, Brahma, Kadaknath. WHITE Leghorn, Australorp and Plymouth Rock are Mediterranean, British and American breeds RESPECTIVELY.