How To Study Or Review Any Scientific Concept? Ex.Molecules That Build Our Genes.

y virtualbiotutor[google5766b108e7b63aa1.html • Posted in Follow these steps to study any scientific concept: Study the title of the topic & find the terms (words) that you don’t know. Define these terms. Read the first paragraph & start to outline the information using a concept map. Study this concept map  of the structure of DNA Molecule.Continue reading “How To Study Or Review Any Scientific Concept? Ex.Molecules That Build Our Genes.”

Inheritance of genetic traits

HSOffspring inherit their genetic traits that make them look like their parents, through  genes contained in the chromosomes during the process of reproduction.All body cells of an organism have identical genetic information,yet are different in structure and function.  The explanation for this variation in cellular structure,  is that  different  parts of the genetic  instructions areContinue reading “Inheritance of genetic traits”

Steps Of The Reproductive Process In Humans

Well,you ,I And other humans followed  the same journey  to be here in this planet and play our role as humans. from a single cell at fertilization to a multi cellular  organism as baby at birth. follow the power point presentation to discover how you came to this world. don’t forget that some developed in a slightly differentContinue reading “Steps Of The Reproductive Process In Humans”

Types of fertilization

Fertilization is an essential process in sexual reproduction. It fuses the gametes thus restoring  the chromosomes number specific for the species.there are two types of fertilization,external and internal. A quick warm up 1- Define fertilization. The fusion or the union of sperm nucleus and an egg nucleus. 2- What is the importance of fertilization inContinue reading “Types of fertilization”

Embryonic Development

We Will follow the development of a fertilized egg from a zygote  to a baby. It’s fascinating to see how a single cell develops  and grows into a complete baby. check your vocabulary through these introductory questions and follow the power point presentation to check your understanding of the process of development Embryonic Development How Does A ZygoteContinue reading “Embryonic Development”

Sexual Reproduction

Sexual reproduction: Involves two parents. Results in offspring that are different from either parent. The genetic variation is due to recombination of chromosomes. This process involves the fusion of two gametes nuclei (egg& sperm). Fusion of the sex cell nuclei occurs during fertilization forming the zygote. Check the details

Meiotic cell division Meiosis

Facts about meiosis. Meiosis involves two cell division. It produces cells that are different from the parent cell. Each cell has .one-half the number of chromosomes as the parent cell. Meiosis takes place during sexual reproduction, producing sex cells ( eggs & sperms ). It takes place in the sex organs (ovaries & testes) LetContinue reading “Meiotic cell division Meiosis”

Active Transport Vs Diffusion (Passive Transport)

<a href="http:// “>Power point presentation All organisms must  absorb, and circulate nutrients through out the body,   All cells must  obtain the needed nutrients, to maintain homeostasis.Well, how does this transport of materials occur?  <a href="http://PowerAll organisms must  absorb, and circulate nutrients through out the body,   All cells must  obtain the neededContinue reading “Active Transport Vs Diffusion (Passive Transport)”

The Cell Membrane -CM- ( structure & function)

As you already know your body is made up of billion of cell-the basic units of structure and function of all living things. Each cell has a cell membrane, that surrounds the cell  thus each cell  has its own environment. The cell membrane is acting like a guard that identifies what molecules leave or enterContinue reading “The Cell Membrane -CM- ( structure & function)”