MCQs on Genetics: Some Basic Fundamentals ICSE Class 10 Selina Solutions

MCQs on Genetics: Some Basic Fundamentals ICSE Class 10 Concise Biology Selina Solutions Ch-3. In this article you will get the solutions of MCQs with hint as council latest syllabus. Visit official website CISCE for detail information about ICSE Board Class-10 Biology.

MCQs on Genetic Some Basic Fundamentals ICSE Class 10 Selina Solutions

MCQs on Genetics: Some Basic Fundamentals ICSE Class 10 Concise Biology Selina Solutions Ch-3

Board   ICSE
Subject  Biology
Class 10
Book Selina Concise
Chapter-3 Genetics: Some Basic Fundamentals
Topics Solutions of MCQs with hint
Session  2024-25

MCQs on Genetics:

( Some Basic Fundamentals ICSE Class 10 Concise Biology Selina Solutions Ch-3)

Que-1: Which one of the following is the phenotypic monohybrid ratio in F2 generation?
  1. 3 : 1
  2. 1 : 2 : 1
  3. 2 : 2
  4. 1 : 3

sol:  3 : 1

Hint: The phenotypic monohybrid ratio in F2 generation is 3:1 because 3 of the offsprings have dominant allele and one is homozygous recessive

Que-2:  If a pure tall plant is crossed with a pure dwarf plant, then offspring will be
  1. all tall
  2. all dwarf
  3. 3 tall 1 dwarf
  4. 50% tall 50% dwarf

sol:  all tall

Hint:  Tallness is a dominant character which will be expressed in F1 Generation

Que-3: The 9 : 3 : 3 : 1 dihybrid ratio is due to
  1. segregation
  2. crossing over
  3. independent assortment
  4. homologous pairing

sol:  independent assortment

Hint:  as the allele of one character is independent of other.

Que-4: A plant with green pods and smooth seeds with genotype Ggss will give rise to the following gametes:
  1. Gg and Ss
  2. Gs and ss
  3. Gs and gs
  4. Gg and gs

sol:  Gs and gs

Hint: As law of independent assortment. possible gametes are Gs and gs, as gene ‘s’ is in homozygous condition

Que-5: The disease colour blindness is a :
  1. Recessive X-linked disease
  2. Dominant Y-linked disease
  3. Recessive Y-linked disease
  4. Dominant X-linked disease

sol:  Recessive X-linked disease

Hint:  colour blindness is due to recessive gene that occurs on the X-chromosome

Que-6: The physical expression of a character is called :
  1. Genotype
  2. Alleles
  3. Phenotype
  4. Traits

sol:  Phenotype

Hint:  Phenotype which is observable characteristics

Que-7:  Purity of gametes is linked to :
  1. Law of dominance
  2. Law of independent assortment
  3. Law of segregation
  4. Law of limiting factor

sol:  Law of segregation

Hint:  Two alleles of a character are independent and separate during formation of gametes. They do not mix with each other or lose their identity.

Que-8:  The phenotypic dihybrid ratio of F2 generation is
  1. 9:3:1:1
  2. 9:1:3:1
  3. 9:1:3:3
  4. 9:3:3:1

sol:  9:3:3:1

Hint:  The phenotypic dihybrid ratio in F2 generation is 9:3:3:1 due to the law of independent assortment while genotype is complicated.

Que-9: In the human male, a sperm contains autosomes and :
  1. X and Y chromosomes
  2. Only X chromosome
  3. X or Y chromosome
  4. Only Y chromosome

sol:  X or Y chromosome

Que-10:  If the mother is normal and the father is haemophilic, then their two daughters will be :
  1. Normal
  2. Hemophilic
  3. Carrier
  4. None

sol:  Carrier

Hint:  Since mother is normal, one of the X chromosome in daughters will be normal. Hence they will be carrier due to X chromosome received from father

.–: End of MCQs on Genetics: Some Basic Fundamentals ICSE Class 10 Concise Biology Selina Solutions  :–

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