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Selina solutions for Class 10 Biology chapter 2 - Genetics - Some Basic Fundamentals

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Selina Selina ICSE Concise Biology Class 10

Selina ICSE Concise Biology for Class 10

Chapter 2: Genetics - Some Basic Fundamentals

Chapter 2: Genetics - Some Basic Fundamentals solutions [Page 0]

Select the most appropriate option

Which one of the following has the smallest number of chromosomes?
(a) Onion
(b) Mouse
(c) Monkey
(d) Ascaris

Select the most appropriate option

Which one of the following is the phenotypic monohybrid ratio in F2 generation?
(a) 3:1
(b) 1:2:1
(c) 2:2
(d) 1:3 

Chapter 2: Genetics - Some Basic Fundamentals solutions [Page 0]

Match the terms in column I with their explanations in column II. 

  Column I (Term)   Column I (Explanation)
a genetics 1 Chromosomes similar in size and shapes
b Autosomes 2 The alternative forms of a gene
c Recessive gene  3 Study of laws of inheritance of characters
d Allele 4 A gene that can express only when in a
similar pair
e Homologous chromosomes 5 Chromosomes other than the pair of sex
chromosomes.

Name two animals which have nineteen pairs of chromosomes. 

Name any two genetic in humans.

Which one of the following genotypes is homozygous dominant and which one homozygous recessive in regards to tongue rolling:

Chapter 2: Genetics - Some Basic Fundamentals solutions [Page 0]

Differentiate between: 

genotype and phenotype

Differentiate between: 

character and trait.

Differentiate between:

monohybrid and dihybrid cross (phenotypic ratio) 

Among lion, tiger and domestic cat, al the three have the same number of 38 chromosomes, yet they have different appearances. How do you account for such differences?

List any three features of garden pea with their dominant and recessive traits. 

Explain why generally only the male child suffers from colour blindness and not the female?  

In a certain species of animals, black fur (B) is dominant over brown fur (b) Show the possible ratio of genotypes and phenotypes of the offspring of the pure breeding different coloured parents. 

Chapter 2: Genetics - Some Basic Fundamentals solutions [Page 0]

Explain the following terms:
(a) heterozygous
(b) Homozygous
(c) pedigree chart. 

State the three mendel’s laws of inheritance. 

Does the sex of the child depend on the father or it is just a matter of chance? Discuss 

Chapter 2: Genetics - Some Basic Fundamentals solutions [Page 0]

In a certain species of animals, black fur (B) is dominant over brown fur (b) Predict the genotype and phenotype of the offspring when both parents are ‘Bb’ or have heterozygous
black fur . 

Two pairs (A & B) of rabbits were crossed as given below: 

 (a) Can you tell which coat colour (black or white) is dominant? .............................
(b) Is the coat colour sex-linked? ………………….

Make a punnett square for finding out the proportion of different genotypes in the progeny of a genetic cross between. 

A pure tall (TT) pea plant with a pure dwarf (tt) pea plant. 

Make a punnett square for finding out the proportion of different genotypes in the progeny of a genetic cross between. 

red flower variety of pea (RR) with white flower variety of pea (rr)

A family consists of two parents and their five children and the pedigree chart below shows the inheritance of the trait colour blindness in them.  

 (a) Who is colour blind in the parents – the Father or the Mother?  

 

Chapter 2: Genetics - Some Basic Fundamentals

Selina Selina ICSE Concise Biology Class 10

Selina ICSE Concise Biology for Class 10

Selina solutions for Class 10 Biology chapter 2 - Genetics - Some Basic Fundamentals

Selina solutions for Class 10 Biology chapter 2 (Genetics - Some Basic Fundamentals) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the CISCE Selina ICSE Concise Biology for Class 10 solutions in a manner that help students grasp basic concepts better and faster.

Further, we at Shaalaa.com are providing such solutions so that students can prepare for written exams. Selina textbook solutions can be a core help for self-study and acts as a perfect self-help guidance for students.

Concepts covered in Class 10 Biology chapter 2 Genetics - Some Basic Fundamentals are Introduction to Genetic Terms, Dihybrid Cross, Monohybrid Cross, The Three Laws of Mendel, Genetics: Mendel’s Laws of Inheritance, Genetics: - Sex Linked Inheritance of Diseases, Sex Determination in Humans.

Using Selina Class 10 solutions Genetics - Some Basic Fundamentals exercise by students are an easy way to prepare for the exams, as they involve solutions arranged chapter-wise also page wise. The questions involved in Selina Solutions are important questions that can be asked in the final exam. Maximum students of CISCE Class 10 prefer Selina Textbook Solutions to score more in exam.

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