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- Direction: Study the representation of the stages of mitosis below and answer the following questions. ZAND 2000 6000 19Question:- Briefly describe some of the promising avenues to increase the human lifespan.[questions 4-6] Volume of the sea Urchin egg is 5.2 x 105 µm3 . You fertilize the cells and take measurements of cellular dimensions at the four blastomere stage. Assume a perfect sphere 4) What is the radius of the sea urchin egg? A) 500 µm B) 100 µm C) 49.9 µm D) 25 mm E) 25 µm F) 6 meters
- Which of the following is false? The endoderm, mesoderm, ectoderm are germ layers The trophoblast is a germ layer The inner cell mass is a source of embryonic stem cells The blastula is often a hollow ball of cells.Lesson: Perpetuation of life What’s more: Answer the following questions: Are you in favor of Genetic Engineering? Yes or No? Why? If you are an expert in Genetic Engineering what would be your creation and how will it help us?Totipotent Cells are cell which can only generate cells of the same type capable of differentiating into many types of cells 2 capable of differentiating into few 3 types of cells can give rise to essentially all cell 4 types in the body MARKED FOR REVIEW
- Refer to image and label the parts of the secondary oocyte using this word bank: plasma membrane, acrosome, zona pellucida, nucleus, polar body, corona radiata, spindle fiber, cytoplasm.WRITE ABOUT A THEME: INFORMATION In a short essay(100–150 words), explain how specification of the adultnervous system by the genome is incomplete.Direction: Study the representation of the stages of mitosis below and answer the following questions. 1. What is the diploid chromosome number (2N) of the cell? 19