In this post, I am sharing the Class 12 Biology Chapter 22 Notes PDF for the students of Intermediate Part 2. This chapter’s name is Variation and Genetics. Students can download the Class 12 Biology Chapter 22 Notes PDF on their laptops or mobile. These Biology Notes are for all the boards working under the Punjab Board like Gujranwala Board, Lahore Board, Faisalabad Board, Multan Board, Rawalpindi Board, Sargodha Board, DG Kahn Board, and Sahiwal Board. Here are the complete FSC 2nd Year Biology Notes PDF chapters.
FSC Part 2 Biology Chapter 22 Notes – Variation and Genetics
IMPORTANT TERMS
Genetics:
It is the brach of biology whicyh deals with the heredity characteristics of an individual and their transmission from parent to offspring.
Tralt or Character:
A character that is controlled by a pair of genes is called a trait or a character.
Factor:
Gene which is responsible for a particular trait is also called a factor.
Gominant:
The trait that appears in the offspring of two parents is called dominant trati. The gene controlling this trait is also said to be dominant.
Recessive:
The trait or gene that is suppressed or masked in F1 generation of two ture breeeding organisms is called recessive the gene or dwarfness is recessive.
Phenotype:
Phenotype is the form of appearance of a trait color, from size begavior etc.
Genotype:
Genotype is the genetic complement genes in an individual for a particular trait such as TT, Tt, TT etc.
How to Download 2nd year Biology Chapter 22 Notes
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Relevant Notes
- 12th Class Biology Chapter 21 Notes
- 12th Class Biology Chapter 21 Short Questions Notes
- 12th Class Biology Chapter 22 MCQs Notes
