Mitosis

two nuclei, a macronucleus and a micronucleus, the macronucleus containing most of the genes that the cell would use daily and the micronucleus serves at the “back up” copy of the genes. The oxytricha can reproduce both asexually and sexually, by mitosis through binary fission, asexually, and sexually by conjugation. The oxytricha was easily identified as a ciliate from the cilia that surrounded the body that helped it move quickly and smoothly through the water. The body of the oxytricha was…

of the epidermis are stratum basale, stratum spinosum, stratum granulosum, stratum lucidim, and stratum corneum. The stratum basale is the deepest layer in the epidermis which contains a single row of stem cells that are constantly going through mitosis. Every time a cell divides, it pushes the more mature keratinocyte up the epidermal layer to produce more keratinocytes (Marieb and Hoehn, pg.153). The stratum spinosum layer contains several cell layers which are sustained by desmosomes. The…

Granulosum. Contains bundles of spine like cells giving the skin tensile strength. Stratum Basale- Composed of a single layer of cuboidal/columnar keratinocytes located at the base of the epidermis. An important composition due to tis ability to undergo mitosis. Melanocytes- Long thin extensions in between keratinocytes that produce melanin. Melanin acts as a barrier to ultra violet light and is one of the pigments responsible for skin color. Langerhan cells- deals with immune response that…

There are many ways it goes back to cell cycle and main thing is mitosis. All the cancer cells can all be traced back to the original devil that the disease started with since they were all clones. This means that had undergone mitosis and since they aren’t working properly they ignore signals and keep multiplying and transferring to other devils when introduced making them malignant. Though not a…

The subject these scientists are interested is the brain. They want to know whether the abnormal spindle gene (ASPM gene), important for encoding human homologue for spindle function, is responsible for an abnormal brain growth disorder (MCPH). They know that during primate evolution there has been a significant increase in brain growth, but are unaware of what causes this increase. The central nervous system is the only thing being affected by individuals whom have MCPH. To test their…

The checkpoints in the cell cycle There are several checkpoints the eukaryote cell cycle that controls the cells from proceeding from one to the next phase of the cell cycle. The point where the cells start to enter the cell cycle is at the G1 checkpoint, which is also known as the restriction checkpoint. At this point, the Retinoblastoma interacts with the E2F, which is the transcription factor to make cyclin E causes the E2F to be inhibited upon interaction. Cells with damaged DNA get…

In just this year to come, more than 46,420 people in the U.S. will be diagnosed with pancreatic cancer. Out of them, about 39,590 people will die from the disease – that’s 85%. While all types of cancer may be fatal, pancreatic cancer is ranked number 4 on the list of deadliest cancers ("Pancreatic Cancer Facts"). Whether the cancer was acquired genetically or due to a carcinogen (a substance capable of causing cancer in living tissue), it will go on to affect the cancer patient and everyone in…

In my essay I will do research on Breast cancer. In my first paragraph I will explain what cancer is and they statistics about it. My second paragraph will be about environmental causes and many other things such as in what causes cancer and what are they different types. My third paragraph will be in great detail about cancer and give informational things on it that you might not have even known about yourself. My final and last thing will sum up everything and give you tips on how to help…

Lesson 2: Assignment 1-Genetic Information Resources, Assignment 2- Critical Thinking Exercise, and Assignment 3-Definition Matrix Tabytha Balash Ohio University  Assignment 1: Genetic Information Resources There are several areas to retrieve information on genetics. The following paragraphs will summarize three organizations that provide information on genetics, genetic counseling, and genetic testing. The summary will include what information is obtainable from the site, who supports the…

a) Why do you think is it important to put the bundles of asparagus in water? /1 It is important to put the bundles of asparagus in water. This is because the asparagus will wilt with its water source (the roots) removed. By putting the asparagus’ cut bottoms into water, water will be transported through its vascular tissue systems to the stems and leaves. Then, the asparagus will be able to photosynthesize with the water supply, sunlight, and carbon dioxide, and make food to function. Then,…