Animal Genetics and Breeding question bank-5

 

Animal Genetics and Breeding question bank-5

Hello vets , these are some important basic questions regarding Animal Genetics and Breeding , hope you enjoy it.


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Animal Genetics And Breeding

Animal Genetics and Breeding question bank-5

Animal Genetics and Breeding question bank-5


1. Germ Plasm theory was postulated by

a) Lamark
b) Weisman
c) Kolliker
d) Hertwig




2. The ability of a given gene or gene combination to be expressed phenotypically to any degree
a) Penetrance
b) expressivity
c) pleiotropism
d) prepotency




3) Linkage group in swamp buffalo
a) 25
b) 30
c) 24
d) 26




4. Total number of genotypes in human ABO blood group system
a) 3
b) 12
c) 6
d) 4


5. Eye colour in drosophila is an example of
a) Sex linked inheritance
b) sex limited inheritance
c) sex influenced inheritance
d) incomplete dominance




6. If the X/A ratio is 0.5, the individual will be
a) Intersex
b) normal female
c) super female
d) normal male



7) Total number of barr bodies in an individual with Turner’s syndrome
a) 0
b) 1
c) 2
d) none of the above



8. In translocation, the exchange of chromosomal segments occurs
a) With in the same chromosome
b) between homologous chromosomes
c) between non homologous chromosomes
d) both b and c




9. If a woman heterozygous for colour blindness marries a colour blind man, what is the probability that their first child will be colour blind daughter?
a) 50%
b) 25 %
c) 75%
d) 100%



10. If the centromere is located close to the end, and giving a very short arm and an exceptionally long arm, the chromosome is called
a) acrocentric
b) telocentric
c)submetacentric
d)none of the above




11. Shortest phase in mitosis is
a) prophase
b) anaphase
c) metaphase
d) telophase



12. Soluble RNA (sRNA) is
a) tRNA
b) rRNA
c)mRNA
d)mitochondrial RNA




13. The theory of epigenesis was proposed by
a) K.F. Wolf
b) Charles Darwin
c) Swammerdam
d) Kolliker




14. Phenotypic F2 ratio of duplicative recessive epistasis (complementary gene interaction) is
a) 12:3:1
b) 9:7
c) 9:6:1
d) 9:3:3:1




15. Source of energy in nucleus is
a) glycolysis only
b) TCA cycle only
c) both a and b
d) none of the above



6. Crossing over taking place at
a) mitosis
b) meiosis ll
c) meiosis l
d)all of the above




17. Xanthine is deaminated product of
a) adenine
b) thymine
c) cytosine
d) guanine




18. The types of phenotypes in F2 generation is
a) 2n
b) 3n
c) n2
d) n3





19. Sum total of genes in a population is
a) genotype
b) karyotype
c) gene pool
d) gene frequency



20. Rho factor is required for the termination of
a) Replication
b) transcription
c) translation
d) transversion




21. The types of histone proteins present in eukaryotic chromosome are
a) 4
b) 5
c) 6
d) 7




22. The classical test cross ratio in dihybrid is
a) 7:1:1:7
b) 1:7:7:1
c) 1:1:1:1
d) both a and b




23. Chromatin consists of
a) DNA & protein only
b) RNA & protein only
c) RNA & protein only
d) DNA,RNA&protein




24. Chromosome number of domestic pig is
a) 38
b) 78
c) 62
d) 54




25. Epistasis is ………… type of interaction
a) inter allelic
b) intra allelic
c) allelic genetic
d) both a and c





26. Sickle cell anemia is due to point mutation, in which
a) glu. is replaced by val.
b) val. is replaced by glu.
c) his. is replaced by val.
d) val. is replaced by his. (Note: val-valine,glu-glutamic acid)





27. MN blood group system in humans is an example of
a) multiple allelism
b) co dominance
c) incomplete dominance
d) pleiotropism





28. If the number multiple alleles for a trait is 5, then what is the total number of genotypes
a) 9
b) 16
c) 12
d) 15





29. Chromosome theory of linkage was proposed by
a) Beadle and Tatum
b) Bateson and Punnett
c) Morgan and Castle
d)Sutton and Bovery





30. Barred condition in poultry is an example of
a) sex linked inheritance
b) sex limited inheritance
c) multiple allelism
d) sex influenced inheritance


  • Please Do Comment if you find any error in the answers✅❌


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ANSWERS A:

1.b 2.a 3.c 4.c 5.a 6.d 7. a 8.c 9.b 10.a 11.b 12.a 13.a 14.b 15.a 16.c 17.d 18.a 19.c 20.b 21.b 22.c 23.d 24.a 25.a 26.a 27.b 28.d 29.c 30.a


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