Inheritance and Variation MCQS For MHT-CET 2023-2024.

 Inheritance And Variance Sub Topics For MHT-CET2023-2024.

  • Mendelian Genetics
  • Deviations From Mendel's Findings
  • Chromosomal Theory Of  Inheritance 
  • Linkage And Crossing Over 
  • Autosomal Inheritance 
  • Sex Linked Inheritance
  • Sex Determination 
  • Genetic Disorder 

 Multiple Choice Questions for Biology MHT-CET

Q1 The transmission of genetic information from parental generation to next generation is known as:

A. Hybridization
B. Heredity 
C. Crossing over 
D. Variation
Correct Answer:(B)

Q2. From the following who first gave the accurate explanation for the mechanism of inheritance by using hybridization technique?

A. Correns 
B. Gregor mendel 
C. Normal borlaug 
D. Robert hooke 
Correct Answer:(B)

Q3. The botanical name of garden pea is:

A. Pisum sativum 
B. Bougainvillea
C. Mangifera indica 
D. Solanum tuberosum 
Correct Answer:(A)

Q4. How many pairs of contrasting characters in pisum sativum were studied by Gregor mendel?

A. 4
B. 6
C. 7
D. 8
Correct Answer:(C)

Q5. Which of the following term was used by mendel to represent something that is responsible for expression of trait?

A. Gene 
B. Allele 
C. Factor 
D. Both (A) and (B)
Correct Answer:(C)

Q6. In seven contrasting pairs studied by mendel in pisum sativum how many trades were based on colour?
A. 2
B. 3 
C. 5 
D. 6
Correct Answer:(B)

Q7. Which of the following character was not considered by mendel?

A. Seed coat colour 
B. Wrinkled or round leaves 
C. Tallness or dwarfness
D. Position of flower 
Correct Answer:(B)

Q8. An inherited character and its detectable variant is called:
A. Allele 
B. Trait
C. Gene 
D. Factor
Correct Answer:(B)

Q9. A particular segment of DNA which is responsible for inheritance and expression of that character is known as:

A. Dipeptide 
C. Gene 
D. Monomer
Correct Answer:(C)

Q10. Which of the following is heterozygous for 2 pairs of alleles?

B. TtRr
Correct Answer:(B)

Q11. Which of the following is heterozygous for one trait and is produced from cross between 2 pure parents differing in single pair of contrasting characters?

A. Dihybrid 
B. Trihybrid 
C. Monohybrid 
D. Polyhybrid 
Correct Answer:(C)

Q12. An individual or group of individuals (population) which is homozygous or true breeding for one or more traits ,constitutes:

A. Pure line 
B. Hybrid line 
C. Mutant line 
D. Polyhybrid line 
Correct Answer:(A)

Q13. The types of gametes formed by a pure line is/are:

A. 1 
B. 16
C. 32
D. 4
Correct Answer:(A)

Q14. F(1) generation means :

A. First flowering generation 
B. First fertile generation 
C. First filial generation 
D. First seed generation 
Correct Answer:(C)

Q15. In genetics ,the use of checkerboard to predict the progeny of a cross was created by:

A. Mendel 
B. Correns 
C. Punnett 
D. Darwin 
Correct Answer:(C)

Q16. Homologous chromosomes :

A. Are  morphologically similar
B. Are structurally similar
C. Have identical gene loci bearing alleles
D. All of these
Correct Answer:(D)

Q17. The ratio of the offsprings produced in F2 and subsequent generation with respect to their physical appearance is known as:

A. Genotypic ratio 
B. Polygenic ratio
C. Phenotypic ratio 
D. Pleiotropic ratio
Correct Answer:(C)

Q18. Across between 2 pure individuals, differing in at least one set of characters is called:

A. Monohybrid cross
B. Dihybrid cross 
C. Trihybrid cross 
D. Polyhybrid cross 
Correct Answer:(A)

Q19. What should be the percentage of homozygous individuals in F1 generation obtained from cross between heterozygous individuals?

A. 0%
B. 25%
C. 50%
D. 75%
Correct Answer:( C)

Q20. In monohybrid cross between pure tall and pure dwarf pea plant, how many types of genotypes are found in F2 generation?

A. 4
B. 3 
C. 8 
D. 9
Correct Answer:( B)

21. Out of the 4 progenies obtained in F2 generation by crossing pure tall and pure dwarf, how many of them will receive only recessive trait from both parents?

A. All four 
B. One 
C. Two
D. Three 
Correct Answer:( B)

Q22. What would be the phenotypic ratio obtained in F2 generation of cross between female plant producing axial flowers and male plant producing terminal flowers ?

A. 2:1
B. 3:1
C. 9:3:3:1
D. 1:2:1
Correct Answer:( B)

Q23. A cross between parents differing into heritable traits is known as:

A. Trihybrid cross
B. monohybrid cross 
C. Dihybrid cross 
D. Pure line cross  
Correct Answer:( C)

Q24. When mendel crossed plants with yellow round seed and green wrinkled seed, the seeds obtained in F1 hybrid were:

A. Yellow wrinkled 
B. Yellow rounded 
C. Green wrinkled
D. Green round 
Correct Answer:( B)

Q25. Which of the following can be used to explain the law of independent assortment:

A. Monohybrid cross 
B. Test cross 
C. Dihybrid cross 
D. Back cross
Correct Answer:( C)

Q26. Which of the following mendel's law has not been proved to be true in all cases?

A. Law of segregation
B. Mendel's second law of inheritance
C. Law of dominance
D. Law of purity of gametes
Correct Answer:( C)

Q27. Mendel formulated the law of dominance and law of purity of gametes on the basis of:

A. Test cross 
B. Back cross 
C. Monohybrid cross
D. Dihybrid cross
Correct Answer:( C)

Q28. The cross between F1 individual and its anyone of the parent is known as :

A. Test cross 
B. Back cross 
C. Recessive cross 
D. Dominant cross 
Correct Answer:( B)

Q29. A cross between individual with unknown genotype for a particular trait with recessive plant for that trait is called :

A. Back cross 
B. Test cross 
C. Monohybrid cross
D. Dihybrid cross 
Correct Answer:(B)

Q30. Interaction between the alleles of different genes on the same or different chromosome is called:

A. Intergenic 
B. Non-allelic
C. Intragenic 
D. Both (A) and (B)
Correct Answer:(D)

Q31. F1 hybrid intermediate between the 2 parents. The phenomenon is called:

A. Co-dominance 
B. Dominance 
C. Blending inheritance 
D. Incomplete dominance 
Correct Answer:(D)

Q32. In which of the following cases one could get same genotypic and phenotypic ratio?

A. Dominance 
B. Incomplete dominance 
C. Back cross 
D. Test cross 
Correct Answer:(B)

Q33. What is the genotypic and phenotypic ratio in incomplete dominance?

A. 3:1
B. 1:2
C. 1:2:1
D. 9:3:3:1
Correct Answer:(C)

Q34. In Drosophila,_________  wing is wild type while vestigial wing is recessive type.

A. Nicked 
B. Notched
C. Normal 
D. Strap
Correct Answer:( C)

Q35. When a single gene controls 2 or more different traits it is known as:

A. Dominant gene 
B. recessive gene 
C. Pleiotropic gene 
D. Mutation
Correct Answer:( C)

Q36. Which of the following is an example of pleiotropy?

A. Haemophilia 
B. Thalassemia
C. Sickle cell anaemia
D. Colour blindness
Correct Answer:( C)

Q37. Chromosomal theory of inheritance was proposed by:

A. Norman Borlaug 
B. Watson and Crick 
C. Sutton and Boveri 
D. Mendel
Correct Answer:( C)

Q38. Which of the following term represents the degree of repetition of the primary basic number of chromosomes in a cell?

A. Aneuploidy
B. ploidy
C. Euploidy
D. Hyperploidy
Correct Answer:( B)

Q39. When the chromosome number in a cell is the exact multiple of the primary basic number, then it is known as:

A. Hypoploidy
B. Hyperploidy
C. Euploidy
D. Polyploidy
Correct Answer:(C)

Q40. During which phase of the cell cycle chromosomes are highly condensed and best visible?

A. Prophase
B. Anaphase 
C. Telophase 
D. Metaphase  
Correct Answer:(D)

Q41. During cell division, spindle fibres get attached to the disc shaped structures present of centromore as known as:

A. Nucleolus
B. Kinetochores
C. SAT body
D. Telomere 
Correct Answer:(B)

Q42. Tendency of genes to inherit together is called:

A. Crossing over 
B. Synapsis
C. Chiasmata
D. Linkage
Correct Answer:(D)

Q43. Genes that have tendency to be inherited together are known as:

A. Dominant genes 
B. Co-dominant genes 
C. Linked genes 
D. Polygenic genes 
Correct Answer:(C)

Q44. All the linked genes in a particular chromosome, constitute a ___________ . 

A. Polygenic linkage 
B. Linkage group
C. Incomplete linkage group 
D. Pleiotropic group
Correct Answer:(B)

Q45. The number of linkage groups of a particular species corresponds to its _________ number of chromosomes.

A. Diploid 
B. Haploid 
C. Triploid 
D. Tetraploid 
Correct Answer:(B)

Q46. Which of the following is not an example of incomplete sex linkage?

A. Nephritis
B. Retinitis pigmentosa 
C. Colour blindness 
D. Hypertrichosis
Correct Answer:(D)

Q47. The phenomenon of exchange of segments between paternal and maternal chromosomes is called:

A. Linkage 
B. Independent assortment 
C. Crossing over 
D. Segregation
Correct Answer:(C) 

Q48. The X linked genes are located on ________ region of X chromosome.

A. Homologous 
B. Non-homologous 
C. Non-homologous 
D. Homogenous
Correct Answer:(C)

Q49. How many recessive sex linked genes are required for expression of sex linked traits in females?

A. 2
B. 4
C. 6
D. 8
Correct Answer:(A)

Q50. The genes present on non-homologous part of Y-chromosome are called:
A. X-linked genes
B. Y-linked genes 
C. Recessive genes 
D. Dominant genes 
Correct Answer:(B)

                                                THANKS FOR VISITING !

Previous Post Next Post