Enhancement In Food Production MCQ For NEET Biology

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Enhancement In Food Production MCQ For NEET Biology

Question 1. Maximum contrilnilion to the total milk production of our country comics from:

  1. Cows
  2. Buffaloes
  3. Camels
  4. Goat.

Answer: 2. Buffaloes

Question 2. Murrah is a breed of:

  1. Cow
  2. Sheep
  3. Buffaloes
  4. Goat

Answer: 3. Buffaloes

Question 3. Lac is a:

  1. Plant product
  2. Mineral product
  3. Synthetic product
  4. Animal product.

Answer: 4. Animal product.

Question 4. Aquaculture includes:

  1. Freshwater fishing
  2. Brackish water fishes
  3. Marine fishery
  4. All of the above.

Answer: 4. All of the above.

Read and Learn More NEET Biology Multiple Choice Question and Answers

Question 5. Which of the following species is specially domesticated and reared for high economic importance?

  1. Apis indica
  2. Apis mellifera
  3. Apis dorsata
  4. Apis florea.

Answer: 1. Apis Indica

Enhancement In Food Production MCQ For NEET Biology

Question 6. Cryopreservation is:

  1. Preservation of living beings in chemicals
  2. Preservation at very low temperature
  3. Preservation through exposure to irradiation
  4. Preservation at high temperature.

Answer: 2. Preservation at very low temperature

Enhancement In Food Production Mcq For Neet

Question 7. Cryopreservation is useful for:

  1. Preservation of semen
  2. Very young fetuses
  3. Living cells and body parts
  4. All the above.

Answer: 4. All the above.

Question 8. Exotic breeds:

  1. Require specific environment
  2. Hardy and high-yielding
  3. Are sturdy
  4. Take less food.

Answer: 1. Require specific environment

Question 9. Exotic breeds are:

  1. Used for cross-breeding
  2. Allowed to multiply and replace local breeds
  3. Easy to manage
  4. Resistant to local pests and pathogens.

Answer: 1. Used for cross-breeding

Question 10. Infertility of local breeds of cattle can be overcome by the use of:

  1. Cross-breeding with exotic breeds
  2. Good nourishment
  3. Stilbesterol
  4. Gonadotropin.

Answer: 4. Gonadotropin.

Question 11. Stilbesterol is used for:

  1. Induction of lactation
  2. Artificial insemination
  3. Super-ovulation
  4. Cryopreservation.

Answer: 1. Induction of lactation

Question 12. A surrogate mother is:

  1. Mother without lactation
  2. Future mother with embryo implanted from another
  3. Carrying several embryos at one time
  4. Artificially inseminated female

Answer: 2. Future mother with embryo implanted from another

Enhancement In Food Production Mcq For Neet

Question 13. Artificial insemination is better than natural insemination in cattle because

  1. Semen of good bulls can be provided everywhere
  2. There is no likelihood of contagious diseases
  3. It is economical
  4. All the above.

Answer: 4. It is economical

Enhancement of Food Production MCQs Question 14. A milch breed of cow is:

  1. Haryana
  2. Malvi
  3. Kankrcj
  4. Hallikcr.

Answer: 1. Haryana

Question 15. A draught breed of cattle is:

  1. Red Sindhi
  2. Gir
  3. Malvi
  4. Haryana.

Answer: 3. Malvi

Question 16. An exotic breed of cow is:

  1. Ongolc
  2. Friesian
  3. Hallikcr
  4. Deoni.

Answer: 2. Friesian

Question 17. Hybrid breed of cattle is:

  1. Sunandini
  2. Holstein
  3. Brown Swiss
  4. Kankrcj.

Answer: 1. Sunandini

Neet Biology Food Production Mcqs

Question 18. The gestation period for buffalo is:

  1. 9 months
  2. 14 months
  3. 10 months
  4. 21-22 months.

Answer: 3. 10 months

Question 19. Cows and buffaloes remain in heat for:

  1. 24-36 hours
  2. 36-48 days
  3. 7-10 days
  4. 15-20 days.

Answer: 1. 24-36 hours

Enhancement of Food Production MCQs Question 20. Bhutia is a breed of:

  1. Chicken
  2. Goat
  3. Sheep
  4. Horse.

Answer: 4. Horse

Question 21. Ship of the desert is:

  1. Elephant
  2. Camel
  3. Sheep
  4. Goat.

Answer: 2. Camel

Question 22. The animal most useful on difficult terrain

  1. Mule
  2. Yak
  3. Camel
  4. Elephant.

Answer: 1. Mule

Question 23. Bactrian camel is characterized by:

  1. Two humps and a long neck
  2. Two humps and long limbs
  3. Two humps and a thick coat
  4. Single hump and thick coat.

Answer: 3. Two humps and a thick coat

Question 24. A beast of burden that needs little care is:

  1. Pig
  2. Donkey
  3. Mule
  4. Yak.

Answer: 2. Donkey

Question 25. The largest land animal is:

  1. Camel
  2. Elephant
  3. Rhino
  4. Python.

Answer: 2. Elephant

Question 26. Elephants are sought after for:

  1. Skin
  2. Hair
  3. Meat
  4. Ivory.

Answer: 4. Ivory.

Food Production And Management Mcq Neet

Question 27. The earliest animal to be domesticated was:

  1. Goat
  2. Dog
  3. Horse
  4. Cat.

Answer: 2. Dog

Question 28. The most used domesticated animal by Eskimos is:

  1. Cow
  2. Sheep
  3. Goat
  4. Husky.

Answer: 4. Husky.

Question 29. Huskies are:

  1. Yaks
  2. Donkeys
  3. Thick coated dogs
  4. Water buffaloes.

Answer: 3. Thick coated dogs

Question 30. The best source for dietary protein for a vegetarian is:

  1. Soya Bean
  2. Gram
  3. Groundnut
  4. Milk.

Answer: 4. Milk.

Food Production And Management Mcq Neet

Question 31. Zebu cattle are:

  1. Water Buffalo
  2. Indian Buffalo
  3. Cow
  4. Sheep

Answer: 3. Cow

Question 32. Cow Water Buffalo is

  1. European breed of buffalo that prefers living in water for most of the day
  2. Buffalo-like animals living in rivers
  3. Llama
  4. Buffalo.

Answer: 4. Buffalo.

Question 33. Which is the real product of Honey bee:

  1. Honey
  2. Pollen
  3. Beeswax
  4. Propolis.

Answer: 3. Beewax

Question 34. The hatching net is called:

  1. Nursery kind
  2. Production pond
  3. Stocking pond
  4. Hapa.

Answer: 4. Hapa.

Question 35. Spawning in fishes can be induced by:

  1. TSH
  2. Thyroxine
  3. FSH and LH
  4. STH.

Answer: 3. FSH and LH

Food Production And Management Mcq Neet

Question 36. The percentage of proteins in the fish meal is:

  1. 15-20%
  2. 25-50%
  3. 40-50%
  4. 55-70%.

Answer: 4. 55-70%.

Question 37. The rearing and breeding of fish in ponds, tanks, and artificial reservoirs are called

  1. Aquaculture
  2. Fishing
  3. Pisciculture
  4. Apiculture.

Answer: 3. Pisciculture

Question 38. Composite fish farming is called

  1. Polyculture
  2. Pisciculture
  3. Monoculture
  4. None of these.

Answer: 1. Polyculture

Question 39. Pisciculture has a bright future in India due to:

  1. Considerable demand
  2. Good response of native fishes to culture
  3. Abundance of cultivable waters
  4. All of these.

Answer: 4. All of these.

Question 40. Silk, honey, and lac are:

  1. Secretory substances of insects
  2. Secretory substances of plants
  3. Artificial chemicals
  4. All of the above.

Answer: 3. Artificial chemicals

Question 41. Match the terms in Column A with suitable terms in Column B.

Strategies For Enhancement In Food Production Animal Sources Match The Column With Suitable Items

  1. (1—D) (2—F), (3—G), (4—C), (5—A), (6—B), (7—E)
  2. (1—D). (2—F), (3—A), (4—C), (5—B), (6—E), (7—C)
  3. (1—D), (2-F), (3—A), (4—G), (5—C), (6—B), (7—E)
  4. (1—D), (2—F), (3—G), (4—C), (5—B), (6—A), (7—E)

Answer: 3. (1—D), (2-F), (3—A), (4—G), (5—C), (6—B), (7—E)

Question 42. The draught breeds of cattle include:

  1. Malvi, Nageri and Hallikar
  2. Malvi, Nageri and Ongole
  3. Nageri, Ongole and Haryana
  4. All the above.

Answer: 1. Malvi, Nageri and Hallikar

Food Production And Management Mcq Neet

Question 43. The method maximum used in cattle breeding is:

  1. Random breeding
  2. Artificial insemination
  3. Controlled breeding
  4. Superovulation and embryo transplant.

Answer: 2. Artificial insemination

Question 44. Rinderpest is the disease of:

  1. Cattle
  2. Poultry
  3. Fish
  4. Camel.

Answer: 1. Cattle

Question 45. Which of the following countries has the maximum average annual milk yield per cow?

  1. United Kingdom
  2. U.S.A.
  3. Denmark
  4. India.

Answer: 2. U.S.A.

Question 46. Which of the following countries has a minimum average annual milk yield per cow?

  1. India
  2. Pakistan
  3. Netherlands
  4. England.

Answer: 1. India

Question 47. Which of the following diseases in poultry is caused by nutritional deficiency?

  1. Perosis
  2. Fowl pox
  3. Coryza
  4. Aspergillosus.

Answer: 1. Perosis

Question 48. Ranikhet or New Castle Disease ‘of poultry is caused by:

  1. Bacteria
  2. Virus
  3. Fungus
  4. None of these.

Answer: 2. Virus

Biotechnology In Food Production Mcq

Question 49. The animal close to human beings which is cloned by an American scientist Dr. Don Wolf 1996 is:

  1. Gorilla
  2. Chimpanzee
  3. Gibbon
  4. Monkey.

Answer: 4. Monkey.

Question 50. Ambergris is the secretion from the intestine used in the manufacture of perfumes and other cosmetics:

  1. Tachyglossus- Echidna
  2. Physeter-Sperm whale
  3. Musk-Deer
  4. Kangaroo-Macropus.

Answer: 2. Physeter-Sperm whale

Question 51. Parthenogenesis is commonly round in:

  1. Ants, boos, and wasps
  2. Ascaris, oarlliwonn, and liver fluke
  3. Frogs, fishes, and foxes
  4. Starfish, Jellyfish, and cuttlefish.

Answer: 1. Ascaris, oarlliwonn, and liver fluke

Question 52. The length of silk fiber which surrounds a cocoon is about:

  1. 800 to 1200 yards
  2. 8000 to 12000 yards
  3. 800 to 1200 feet
  4. 8000 to 12000 meters.

Answer: 1. 800 to 1200 yards

MCQs on Enhancement of Food Production Question 53. The technique of silk production from the cocoons of silkworms was first known to:

  1. India
  2. China
  3. United Kingdom
  4. U.S.A.

Answer: 2. China

Question 54. Maximum cocoon and raw silk production is in:

  1. China
  2. Japan
  3. U.S.S.R.
  4. Brazil.

Answer: 1. China

Question 55. Central Silk Research and Training Institute (CSRTI) is located at:

  1. Assam
  2. Bahrampur
  3. Tarai region
  4. Shanthivials (Mysore).

Answer: 4. Shanthivials (Mysore).

Biotechnology In Food Production Mcq

Question 56. Most commercial silkworm strains are:

  1. Uni-voltine
  2. Vi-colline
  3. Multi-volcanic
  4. All of these.

Answer: 2. Vi-colline

MCQs on Enhancement of Food Production Question 57. The larval form of the silk moth is called:

  1. Naiad
  2. Maggot
  3. Caterpillar
  4. Wriggler.

Answer: 3. Caterpillar

Question 58. Eri silk is produced by:

  1. Bombyx mori
  2. Atticus ricin
  3. Anthenea roylre
  4. Anthenea paphia.

Answer: 2. Attcicus ricin

Question 59. Passive, non-locomotory, and non-feeding stages in the life history of the Silk moth are:

  1. Caterpillar
  2. Imago
  3. Nymph
  4. Pupa.

Answer: 4. Pupa.

Question 60. Nosemia sp. a protozoan produces diseases in:

  1. Silk moth
  2. Honey bee
  3. Both silk moth and honey bee
  4. Lac insect.

Answer: 3. Both silk moth and honey bee

Question 61. Which type of silk is obtained from Bombyx mori?

  1. Reeled silk
  2. Muga silk
  3. Arandi silk
  4. Tasar silk.

Answer: 1. Reeled silk

Biotechnology In Food Production Mcq

Question 62. Silk glands of silkworms are modified:

  1. Crop glands
  2. Salivary glands
  3. Gastric glands
  4. Intestinal glands

Answer: 2. Salivary glands

Question 63. Hinny Finny is a crossbreed between

  1. Male donkey and female horse
  2. Female donkey and male horse
  3. Male mule and female horse
  4. None of these.

Answer: 2. Male mule and female horse

Question 64. Match the terms of Column A with suitable terms in column B.

Strategies For Enhancement In Food Production Animal Sources Match The Columns With Suitable Terms

  1. (1-C), (2-B), (3-E), (4-D), (5-A)
  2. (1—C), (2—A), (3—E), (4—D), (5-B)
  3. (1—C), (2—A), (3—E), (4—B), (5—D)
  4. (1—E), (2—E), (3—B), (4—A), (5—D).

Answer: 3. (1—C), (2—A), (3—E), (4—B), (5—D)

Question 65. Poultry includes:

  1. Fowl, duck, tortoise, and turkey
  2. Fowl, duck, pigeon, and tortoise
  3. Duck, fowl, tortoise and turtle
  4. Fowl, duck, turkey, and pigeon.

Answer: 4. Fowl, duck, turkey, and pigeon.

Question 66. The percentage of proteins in the egg white is:

  1. 12%
  2. 35%
  3. 64%
  4. 70%.

Answer: 3. 64%

Question 67. The main protein type found in egg white is:

  1. Ovalbumin
  2. Canalbumin
  3. Phosvitin
  4. Lipovitellin.

Answer: 1. Ovalbumin

Food Security And Gm Crops Mcq Neet

Question 68. Central Food Technological Research Institute is located at:

  1. Izatnagar
  2. Lucknow.
  3. Dehradun
  4. Mysore.

Answer: 4. Mysore

Question 69. Which one of the following is our indigenous breed of chicken?

  1. Plymouth Rock
  2. White Leghorn
  3. Aseel
  4. Rhode Island Red.

Answer: 3. Aseel

NEET Biology Strategies for Enhancement in Food  Question 70. A hybrid variety produced, having more meat-producing capacity, in chickens is:

  1. Broilers
  2. Plymouth rock
  3. White Romish
  4. New Hemisphere.

Answer: 1. Broilers

Strategies For Enhancement In Food Production Animal Sources Questions From Competitive Examinations

Question 1. Which of the following lias have been recently used for increasing the productivity of super milk cows:

  1. Artificial insemination by a pedigree bull only
  2. Superovulation of a high-production cow only
  3. Embryo transplantation only
  4. A combination of superovulation, artificial insemination, and embryo transplantation into a carrier cow (surrogate mother).

Answer: 4. A combination of superovulation, artificial insemination, and embryo transplantation into a carrier cow (surrogate mother).

Question 2. The name of the sheep that was cloned for the first time is:

  1. Dolly
  2. Polly
  3. Molly
  4. Holly.

Answer: 3. Molly

Question 3. Inland fisheries is referred to as:

  1. Culturing fish in freshwater
  2. Trapping and capturing fish from seacoast
  3. Deep sea fishing
  4. Extraction of oil from fish.

Answer: 1. Culturing fish in freshwater

Question 4. On the basis of utility. Nagapuri buffaloes are categorized as:

  1. Grazers
  2. Dual purpose
  3. Draught cattle
  4. Milkers.

Answer: 4. Milkers.

Question 5. Natural silk contains:

  1. Potassium
  2. Phosphorus
  3. Nitrogen
  4. Magnesium.

Answer: 3. Nitrogen

Food Security And Gm Crops Mcq Neet

Question 6. In India the best aquarium is located at:

  1. Z.S.I. Kolkata
  2. Tarapur, Mumbai
  3. Chennai
  4. Vishakhapatnam.

Answer: 2. Chennai

Question 7. Pearl oyster belongs to class:

  1. Gastropoda
  2. Pelecypoda
  3. Scaphopoda
  4. Amphineura.

Answer: 2. Pelecypoda

Question 8. Lac is produced as:

  1. Feces of lac body
  2. Secretion from body
  3. Excretion from body
  4. Excess from oozing out of the body.

Answer: 2. Secretion from body

Question 9. Which one is the best silk?

  1. Eri silk
  2. Mulberry silk
  3. Tasar silk
  4. None of the above.

Answer: 2. Mulberry silk

Question 10. Lac is produced from

  1. Only males
  2. Only females
  3. More females than males
  4. More males than females.

Answer: 2. Only females

Question 11. The silkworm spins its cocoon:

  1. From inside to outside
  2. Outside to inside
  3. Random
  4. Inside.

Answer: 2. Outside to inside

Question 12. The three major carps. -Cattle, Labeo, and Cirhinus grown in the same pond are due to:

  1. There is no competition among them for food material
  2. Their feeding habits are different
  3. They live in different habitats
  4. None of the above.

Answer: 1. There is no competition among them for the food material

Question 13. The Indian tiger prawn is:

  1. Pennons implicit
  2. Penacus monodon
  3. Macrobradmm
  4. Palaemon.

Answer: 2. Penacus monodon

Food Security And GM Crops Mcq Neet

Question 14. Shagreen is obtained from:

  1. Dried skin of shark
  2. Skin of codfish
  3. Air bladder of fishes
  4. None of the above.

Answer: 1. Dried skin of shark

Question 15. Ishingless is obtained from:

  1. Liver of frog
  2. Scales of fishes
  3. Air bladder of fishes
  4. The skin of a shark.

Answer: 3. Air bladder of fishes

Question 16. Lac is:

  1. Excretion of lac insect
  2. Dead body of lac insect
  3. Body secretion of lac insect
  4. None of the above.

Answer: 3. Body secretion of lac insect

Question 17. It is now possible to breed plants and animals with desired characteristics through:

  1. Ikebana technique
  2. Tissue culture
  3. Genetic Engineering
  4. Chromosome Engineering.

Answer: 3. Genetic Engineering

Question 18. The large distribution of clean quality milk all the world over can be said to be due to the great work of:

  1. Robert Koch
  2. Leeuwenhoek
  3. Louis Pasteur
  4. Blackman.

Answer: 3. Louis Pasteur

Question 19. In lac insect, lac is produced from:

  1. Abdominal glands
  2. Salivary glands
  3. Skin glands of the abdomen
  4. None of the above.

Answer: 3. Skin glands of the abdomen

Food Security And GM Crops Mcq Neet

Question 20. The honey bees exhibit a type of dance to communicate the location of food. This is known as:

  1. Tap dance
  2. Round dance and waggling dance
  3. Breakdance
  4. Waggle dance.

Answer: 4. Waggle dance.

Question 21. Arhenotoky is a type of:

  1. Parthenogenesis found in honey bees, wasps and ants
  2. Parthenogenesis found in every insect
  3. Parthenogenesis found in mosquitoes
  4. Parthenogenesis is found in butterflies.

Answer: 1. Parthenogenesis found in honey bees, wasps and ants

Question 22. Which among the following is the real product of honey bees?

  1. Pollen
  2. Bee wax
  3. Honey
  4. Propolis.

Answer: 4. Propolis

Question 23. Which one of the following is the source of silk?

  1. Eggs
  2. Caterpillar
  3. Cocoon
  4. Pupa.

Answer: 3. Cocoon

Question 24. Which one of the following mollusca groups is primarily used in the pearl formation?

  1. Monoplacophorans
  2. Cephalopods
  3. Gastropods
  4. Pelecypods.

Answer: 4. Pelecypods.

Question 25. The main composition of lac is:

  1. Glue, pigment, and sugar
  2. Wax, pigment, and glue
  3. Resin, pigment, wax, and glue
  4. Resin, sugar, and wax.

Answer: 3. Resin, pigment, wax, and glue

Question 26. The main product of poultry is:

  1. Eggs
  2. Chicken
  3. Meat
  4. Eggs and meat.

Answer: 1. Eggs

Question 27. The insect that is not found in the wild state is:

  1. Lac insect
  2. Cochineal insect
  3. Honey bee
  4. Silk moth.

Answer: 2. Cochineal insect

Enhancement In Food Production Mcq For Neet

Question 28. The scientific name of the lac insect is:

  1. Tachardia lacca
  2. Bombyx mori
  3. Cimex lectularis
  4. Pediculus pithiris.

Answer: 1. Tachardia lacca

Question 29. The milch breeds of cattle are?

  1. Mallikar, Nageri and Malvi
  2. Gir, Sahiwal and Deoni
  3. Kankrej, Haryanna and Ongole
  4. Tharparkar and Kangayam.

Answer: 2. Gir, Sahiwal and Deoni

Question 30. Common wild rock honey bees are:

  1. Apis mellifera
  2. Apis indica
  3. Apis dorscita
  4. None of the above.

Answer: 3. Apis dorscita

Question 31. The tassar silk moth belongs to the family:

  1. Bombycidae
  2. Stumidae
  3. Hymenoptera
  4. Diptera.

Answer: 2. Stumidae

Question 32. The Indian carp is:

  1. Scoliodon
  2. Labeo
  3. Torpedo
  4. Pristis.

Answer: 2. Labeo

Question 33. Gambusia is a:

  1. Predator on mosquito larvae
  2. Pest of fishes
  3. Parasite on crab
  4. Pathogenic protozoan.

Answer: 1. Predator on mosquito larvae

Question 34. Silk glands are modified:

  1. Salivary glands
  2. Anal glands
  3. Colleterial glands
  4. Mushroom glands.

Answer: 1. Salivary glands

Question 35. The largest silk-producing state of India is:

  1. Karnataka
  2. Bihar
  3. Assam
  4. West Bengal.

Answer: 1. Karnataka

Question 36. Pearl-producing Indian species are:

  1. Pinctada indica
  2. Ostrea indica
  3. Pinctada vulgaris
  4. Ostrea vulgaris.

Answer: 3. Pinctada vulgaris

Enhancement In Food Production Mcq For Neet

Question 37. The world’s highly prized wool-yielding ‘Pashmina breed’ is:

  1. Sheep
  2. Goat
  3. Goat-sheep cross
  4. Kashmir sheep-afghan sheep cross.

Answer: 2. Goat

Question 38. Match the breeds of cattle given under Column A with the place of their origin listed under Column B. Choose the answer that gives the correct combination of alphabets of the two columns.

Strategies For Enhancement In Food Production Animal Sources Match The Breeds Of Cattle

  1. 1 = B, 2 = D, 3 = E. 4 = A
  2. 1 = D, 2 = C, 3 = E, 4 = A
  3. 1 = B, 2 = D, 3 = A, 4 = E
  4. 1 = D, 2 = E, 3 = A, 4 = C.

Answer: 2. 1 = D, 2 = C, 3 = E, 4 = A

Question 39. Which of the following is the sequence of cultivation of fish?

  1. Fry—fingerlings—spawn—Adult
  2. Spawn—fry—fingerlings—adult
  3. Adult—spawn—fingerlings—fry
  4. Fingerlings—fry—spawn—adult.

Answer: 3. Adult—spawn—fingerlings—fry

NEET Biology Strategies for Enhancement in Food  Question 40. The amount of protein per 100 g (without water, approximately 2 eggs) is:

  1. 11.9
  2. 20.1
  3. 16
  4. 45

Answer: 2. 20.1

Question 41. MOET is a method of:

  1. Fish cultivation
  2. Cloning in sheep
  3. Hybridization in cattle
  4. Birth control in humans

Answer: 3. Hybridization in cattle

Question 42. When a cross is made between two species of the same genus, then the cross is known as

  1. Intraspecific hybridization
  2. Interspecific hybridization
  3. Intergeneric hybridization
  4. Intervarietal hybridization.

Answer: 2. Interspecific hybridization

Question 43. Which one of the following types of silk is being produced extensively in South India?

  1. Eri
  2. Mulberry
  3. Tussar
  4. Muga.

Answer: 3. Tussar

Question 44. Mating between two individuals differing in genotype produces a genetic variation called

  1. Domestication
  2. Incubation
  3. Hybridization
  4. Mutation.

Answer: 3. Hybridization

Question 45. Which of the following organisms is useful for us?

  1. Musca
  2. Bombyx
  3. Pheretima
  4. Periplaneta.

Answer: 2. Bombyx

Question 46. Which of the statements about breeding is wrong?

  1. By inbreeding purelines cannot be evolved.
  2. Continued inbreeding, especially close inbreeding reduces fertility and productivity.
  3. Cross-breeding allows the desirable qualities of two different breeds to be combined.
  4. Inbreeding exposes harmful recessive genes that are eliminated by selection.
  5. A single outcross often helps to overcome inbreeding depression.

Answer: 2. Continued inbreeding, especially close inbreeding reduces fertility and productivity.

Question 47. Compared to a bull a bullock is docile because of:

  1. Higher levels of cortisone
  2. Lower levels of blood testosterone
  3. Lower levels of adrenalin/noradrenalin in its blood
  4. Higher levels of thyroxine.

Answer: 2. Lower levels of blood testosterone

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