Friends, I am providing you the Biology handwritten practical notes and this notes will be very very helpful to you in your class 12 board exam every student wants to do any senior Class 12 CBSE Biology practical notes.
The practical contents in the practical book is as follows the first practical is to study and identify the stages of gamut developed that is transfer section to study and identify the stages of gamut developed that is lateral section of ovary through permanent slide study of amoeba plasmodium and study to transfer section of blastula permanent slide study of plants and animal found in Europe fighter condition to test the presence of inorganic salt in different soil samples to study pH of different types of soil to study the flowers adopted in pollination of different Agencies like winds and insects etc.
Friends, I have uploaded the Complete Study Material of your Class Twelfth Class CBSE pattern for all of you, you can download and read from our website and increase your march. If I was studying in my class Twelfth time then Whatever teacher I taught and whatever I wrote in my notice, was written in practical files and you read whatever book I followed. During the time, I have uploaded all those things by uploading a photo in PDF file. You can download and download all of the material I have given you to read. Please, you have requested that if you use it only for your studies then hope I do that my work or hard work will prove to be meaningful for all people.
2. Collect and study soil from at least two different sites and study them for texture, moisture content,pH and water holding capacity. Correlate with the kinds of plants found in them.
3. Collect water from two different water bodies around you and study them for pH, clarity, and presence
of any living organism.
4. Study the presence of suspended particulate matter in the air at two widely different sites.
5. Study the plant population density by quadrat method.
6. Study the plant population frequency by quadrat method.
7. Prepare a temporary mount of onion root tip to study mitosis.
8. Study the effect of different temperatures and three different pH on the activity of salivary amylase on
starch.
9. Isolate DNA from available plant material such as spinach, green pea seeds, papaya, etc.
Experiments No 08 :
B.
Study/observation of the following (Spotting)
1. Flowers adapted to pollination by different agencies (wind, insects, birds).
2. Pollen germination on stigma through a permanent slide.
3. Identifica tion of stages of gamete development, i.e., T.S. of testis and T.S. of ovary through permanent
slides (from grasshopper/mice).
4. Meiosis in onion bud cell or grasshopper testis through permanent slides.
5. T.S. of blastula through permanent slides (Mammalian).
6. Mendelian inheritance using seeds of different colour/sizes of any plant.
7. Prepared pedigree charts of any one of the genetic traits such as rolling of tongue, blood groups, ear
lobes, widow’s peak and colour blindness.
8. Controlled pollination – emasculation, tagging and bagging.
9. Common disease causing organisms like Ascaris, Entamoeba, Plasmodium,any fungus causing ringworm
through permanent slides or specimens. Comment on symptoms of diseases that they cause.
10. Two plants and two animal s (models/virtual images) found in xeric conditions. Comment upon their
morphological adaptations.
11. Two plants and two animals (models/virtual images) found in aquatic conditions. Comment upon
