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.......... increases homozygosity and ex...

.......... increases homozygosity and exposes harmful recessive genes.

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Inbreeding
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Define homozygous recessive.

Study the following statements regarding inbreeding and select the incorrect ones. (i) The inbreeding strategies allow the desirable qualities of two different breeds to be combined. (ii) It increases homozygosity. (iii) It also helps in elimination of less desirable genes. (iv) Continued inbreeding increases fertility and productivity.

__________ is an inborn error of metabolism caused due to autosomal recessive gene.

Given any two harmful effects of acid rain.

Assertion : Phenotypic superiority of hybrid over either of its parents in one or more traits is termed hybrid vigour. Reason : Suppression of expression of recessive harmful genes occurs in heterozygotes.

What is recessive lethality?

Assertion (A): Pure line varieties show homozygosity. Reason (R): Pure line species are obtained through cross pollination.

Cross involving an unknown genotype and recessive parent ……..

FULL MARKS-TRENDS IN ECONOMIC ZOOLOGY-Additional Questions Solved ( Fill in the Blanks.)
  1. Most of the marine prawns caught along the Indian coast belongs to the...

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  2. Metapenaeus dobsoni is a species of ......

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  3. Fresh water bivalve .......... is used in artificial pearl culture.

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  4. The piece of tissue which is inserted inside the mantle of the oyster ...

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  5. 90% of pearl is ...........

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  6. The best quality of pearl is obtained from ............ oysters.

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  7. The practice of breeding and raising livestock is called as ..........

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  8. .......... increases homozygosity and exposes harmful recessive genes.

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  9. ........... helps to produce new and favourable traits, new breeds and...

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  10. ............ is a technique in which the semen collected from the male...

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  11. ................ is the production and marketing of milk and its produ...

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  12. Sindhi, Gir, Jersy are ............. breeds.

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  13. ........... is the rearing and propagation of avian species.

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  14. ............ is the type of chicken breeds well known for fast growth ...

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  15. Caring and management of young chicks for 4-6 weeks immediately after ...

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  16. Ranikhet is a ............ disease.

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  17. Domesticated ducks have been derived from the wild duck named ...........

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  18. Droppings of poultry can be used as .......... in fields.

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  19. The droppings of poultry are rich in nitrogen, potash and .....

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  20. The eggs and poultry meat are the richest sources of ............... a...

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