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 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?
- 3 : 1
- 1 : 2 : 1
- 2 : 2
- 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
- all tall
- all dwarf
- 3 tall 1 dwarf
- 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
- segregation
- crossing over
- independent assortment
- 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:
- Gg and Ss
- Gs and ss
- Gs and gs
- 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 :
- Recessive X-linked disease
- Dominant Y-linked disease
- Recessive Y-linked disease
- 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 :
- Genotype
- Alleles
- Phenotype
- Traits
sol: Phenotype
Hint: Phenotype which is observable characteristics
Que-7: Purity of gametes is linked to :
- Law of dominance
- Law of independent assortment
- Law of segregation
- 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
- 9:3:1:1
- 9:1:3:1
- 9:1:3:3
- 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 :
- X and Y chromosomes
- Only X chromosome
- X or Y chromosome
- 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 :
- Normal
- Hemophilic
- Carrier
- 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 :–
Please share with your friends if helpful
Return to : Concise Biology for ICSE Class 10 Selina Solutions
Thanks