Exam (elaborations)
CHAPTER 5 PRINCIPLE OF INHERITANCE AND VARIATION MULTIPLE-CHOICE QUESTIONS
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CHAPTER 5 PRINCIPLE OF INHERITANCE AND VARIATION MULTIPLE-CHOICE QUESTIONS
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U NIT II:NIT II: SSTRUCTURAL
PURINCIPLE OF
TRUCTURAL O
INHERITANCE
RGANISATION IN P
AND VARIATION
ORGANISATION IN PLANTS AND A
LANTS AND ANIMAL
NIMALS 29
CHAPTER 5
PRINCIPLE OF INHERITANCE AND
VARIATION
MULTIPLE-CHOICE QUESTIONS
1. All genes located on the same chromosome:
a. Form different groups depending upon their relative distance
b. Form one linkage group
c. Will not from any linkage groups
d. Form interactive groups that affect the phenotype
2. Conditions of a karyotype 2n ± 1 and 2n ± 2 are called:
a. Aneuploidy
b. Polyploidy
c. Allopolyploidy
d. Monosomy
3. Distance between the genes and percentage of recombination shows:
a. a direct relationship
b. an inverse relationship
c. a parallel relationship
d. no relationship
4. If a genetic disease is transferred from a phenotypically normal but carrier
female to only some of the male progeny, the disease is:
a. Autosomal dominant
b. Autosomal recessive
c. Sex-linked dominant
d. Sex-linked recessive
, 30 BIOLOGY, EXEMPLAR PROBLEMS
5. In sickle cell anaemia glutamic acid is replaced by valine. Which one of
the following triplets codes for valine?
a. G G G
b. A A G
c. G A A
d. G U G
6. Person having genotype IA IB would show the blood group as AB. This is
because of:
a. Pleiotropy
b. Co-dominance
c. Segregation
d. Incomplete dominance
7. Z Z / ZW type of sex determination is seen in:
a. Platypus
b. Snails
c. Cockroach
d. Peacock
8. A Across between two tall plants resulted in offspring having few dwarf
plants. What would be the genotypes of both the parents?
a. TT and Tt
b. Tt and Tt
c. TT and TT
d. Tt and tt
9. In a dihybrid cross, if you get 9:3:3:1 ratio it denotes that:
a. The allels of two genes are interacting with each other
b. It is a multigenic inheritance
c. It is a case of multiple allelism
d. The allels of two genes are segregating independently.
10. Which of the following will not result in variations among siblings?
a. Independent assortment of genes
b. Crossing over
c. Linkage
d. Mutation
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