Meiosis

2. The element being described is Sodium its symbol is Na it has an atomic mass of 22.989769. It has an atomic number of 11. This element has 11 protons, 11 protons, and about 11 neutrons. Protons have a positive charge, electrons have a negative charge, and neutron have a neutral charge. Electron shells are the outer parts of an atom containing the electrons. Valence electrons are electrons in the outermost shell. Valence electrons tell us whether an atom shares, transfers or receives electrons…

It has been proven that yeast can grow on both YPD and SD plates. In this lab we cross several yeast strains through the process called replica plating. For this identification test only one dominant allele is required. One copy of each gene is essential to produce enough of each enzyme needed in order to make a histidine. Through the study of Saccharomyces cerevisiae we prove that by transferring yeast cells onto YPD and SD plates over a period of 24-72 hours in a thirty degrees Celsius…

To start off with, the mitotic proliferation phase of completes in the neonate to produce primordial germ cells (fig.1, 2) that subsequently enter meiosis. These cells then arrest at the first meiotic prophase (4) to become the primary oocytes situated within the primordial follicle. Once left the pool of primordial follicles, the primordial follicle will then grow in a gonadotropin-independent manner…

1. Detail the first part of the digestive system from the mouth to the esophagus including the structure and functions of each part. The first part of the digestive system is comprised of the mouth, the pharynx and the esophagus. The mouth is an oral cavity that starts the process of mechanical and chemical digestions when food is received. The mouth is bounded by the cheeks and lips. The mouth contains a soft and hard palate, salivary glands, teeth (crown and dentin) and the tongue (covered…

research. It is important to understand which genes and alleles are present in which chromosomes, what the function and phenotype of the corresponding gene is, and if multiple genes are significantly linked and do not separate independently during meiosis. The results of this experiment have verified that the autosomal gene that control long versus apterous wings separates independently from two genes controlling eye color: one autosomal and one X-linked. This should pave the way for future…

Genetic Variation Testing On Lynch Syndrome Lynch Syndrome is an hereditary nonpolyposis colorectal cancer which is a disorder that increases the risk of many types of cancer. Researcher says that people who have lynch syndrome are more likely to develop colorectal cancer than anybody. The genetic test for lynch syndrome is MLH1. MLH1 is Mutl homolo g1, Colon cancer, nonpolyposis type 2. Lynch syndrome also have an risk of cancer of the stomach, small intestine, liver, gallbladder…

personal growth. I have had many experiences throughout my 7th grade school year.In the school year I learned how to write an argumentative writing. First, it was to back it up with facts to make it better and believable. Second, I have learned what meiosis is where it starts and ends. Every step that goes on. I Learned where we get are traits from that we can use a Punnett square to get a prediction. Lastly, to see what genetics we get from your parents by using the Punnett square. All the…

better known as Down syndrome. This occurs when each cell has three copies of chromosome twenty-one rather than having a normal pair. Nondisjunction is "an error in which homologous chromosomes or sister chromatids fail to separate normally during meiosis or mitosis" (Huether, McCancep, 2012, p.42). Therefore, a common cause of Down syndrome is nondisjunction. Scientists have made the discovery that Down syndrome is caused by an extra chromosome, but the cause of why that occurs is unknown.…

endoplasmic reticulum, Golgi apparatus, chloroplasts, and mitochondria). Like a prokaryotic cell, they also possess a plasma membrane, cytoplasm and ribosomes. Aksi giant pandas perform cell division through mitosis and reproduce sexually through meiosis. Kingdom : Animalia Giant pandas are multicellular; they possess more than one cell composed of eukaryotic cells. Their cell structure possess multiple smaller vacuoles and no cell wall or chloroplasts. Giant pandas are heterotrophic as they…

This individual would produce gametes that are either nullisomic or disomic. This is due to all the genetic information for chromosome 21 being tied to one physical chromosome instead of the usual two. This means that in independent assortment in meiosis, the chromosome will be unable to split and the resultant gamete will either have the equivalent genetic information of two chromosome 21 or no genetic information for chromosome…