Courses
Teacher-curated, self-paced courses. Looking for a guided sequence through a full topic? See Learning Paths.
3 courses
The Cell Cycle and Mitosis New
Biology · High School (11–12) · Cell Cycle and Cell Division
FreeCh 9 · 1/3
How does one cell become two? A cell grows, copies its DNA and then divides. You meet the phases of the cell cycle and count the DNA and the chromosomes at each stage. Then you follow mitosis and cytokinesis in animal and plant cells and see what mitosis does for a body. It serves the Indian syllabus (NCERT, NEET) and the matching topic of A-Level, IB and AP.
3Lessons10Problems2Python Labs1Question Set1Mock Test
Meiosis and Its Significance New
Biology · High School (11–12) · Cell Cycle and Cell Division
FreeCh 9 · 2/3
How does a cell halve its chromosome number and make four different cells? You meet the five stages of prophase I, synapsis and crossing over, and the two divisions of meiosis. Then you compare meiosis with mitosis and see why it keeps the chromosome number steady and makes variation. It serves the Indian syllabus (NCERT, NEET) and the matching topic of A-Level, IB and AP.
3Lessons10Problems2Python Labs1Question Set1Mock Test
Control, Cancer and Counting Through the Cycle New
Biology · High School (11–12) · Cell Cycle and Cell Division
FreeCh 9 · 3/3
What keeps the cell cycle in order, and what happens when it fails? You meet the checkpoints, the cyclins and the kinases they switch on, and the changes that lead to cancer. Then you do the sums of the topic: chromosomes, chromatids and DNA at every stage, DNA graphs, the mitotic index and the number of cells after many divisions. It serves the Indian syllabus (NCERT, NEET) and the matching topic of A-Level, IB and AP.
3Lessons10Problems2Python Labs1Question Set1Mock Test