The Institutions of Foreign Policy The Policymaking Process Public policy refers to the actions taken by government — its decisions that are intended to solve problems and improve the quality of life for its citizens. At the federal level, public policies are enacted to regulate industry and business, to protect citizens at home and abroad, to aid state and city governments and people such as the poor through funding programs, and to encourage social goals. A policy established and carried out by the government goes through several stages from inception to conclusion.
Human Reproduction[ edit ] Production of Gametes[ edit ] Draw the structure of testis tissue as seen using a light microscope. Outline the processes involved in spermatogenesis including mitosis, cell growth, the two divisions of meiosis, and cell differentiation.
The outer layer of cells, called spermatogonia 2n divides by mitosis, producing more spermatogonia also 2n.
Spermatogonia grow into larger cells called primary spermatocytes 2n. Primary spermatocytes 2n carry out the first stage of meiosis, producing 2 secondary spermatocytes n.
Each secondary spermatocyte carries out the second division of meiosis, producing four spermatids n. Spermatids become associated with nurse cells called sertoli cells, which help the spermatids develop into spermatozoa n.
Mature sperm the spermatozoa detach from sertoli cells and eventually are carried out of the testes by fluid in the center of the seminiferous tubule. Outline the origin and the role of the follicle stimulating hormone FSHtestosterone, and lutenizing hormone LH in spermatogenesis.
Released by the pituitary gland; stimulates primary spermatocytes to undergo the first division of meiosis. Released by testes; stimulates development of secondary spermatocytes into mature sperm. Released from the pituitary gland; stimulates secretion of testosterone by testes.
Draw the structure of the ovary as seen using a light microscope.
Outline the processes involved in oogenesis including mitosis, cell growth, the two divisions of meiosis, the unequal division of cytoplasm, and the degeneration of polar bodies.
In the ovaries of a female fetus, cells called oogonia 2n divide by mitosis to make more oogonia cells.
Oogonia grow into larger cells called primary oocytes 2n. Primary oocytes start meiosis but stop at prophase I. Primary oocytes and a single layer of follicle cells form a primary follicle.
When a baby girl is born, the ovaries containprimary follicles. Every menstrual cycle, a few primary follicles start to develop -- During this time, the Primary oocyte completes meiosis I, forming two haploid n daughter nuclei - cytoplasm of the primary oocyte develops unequally, forming a secondary oocyte n and a small polar body n.
Then, the Secondary oocyte starts second division of meiosis but stops at prophase II. The follicle cells, meanwhile, are reproducing quickly and follicle fluid is forming. When the mature follicle bursts at the time of ovulation, the released egg is still a secondary oocyte n.
After fertilization, the secondary oocyte completes the second division of meiosis to form an ovum with the sperm nucleus already inside. Polar bodies do not develop into eggs; they degenerate. Draw the structure of a mature sperm and egg.
Outline the role of the epididymis, seminal vesicle, and prostate gland in the production of sperm. Epididymus - where mature sperm are stored, waiting to be released into the vas deferens to become part of ejaculatory fluid. Seminal vesicle - releases a sugary solution to feed sperm nutrients during their journey.
Compare the processes of spermatogenesis and oogenesis, including the number of gametes and the timing of the formation and release of gametes. Number of gametes - Spermatogenesis: Timing of formation - Spermatogenesis: Release of gametes - Spermatogenesis: Fertilization and Pregnancy[ edit ] Describe the process of fertilization including the acrosome reaction, penetration of the egg membrane by a sperm, and the cortical reaction.
Acrosome reaction - When a sperm comes in contact with the protein coats surrounding the egg, the acrosome an enzyme-filled vacuole at the tip of the sperm cell bursts open and releases enzymes that digest the jelly-like coating of the egg.
Penetration of egg membrane - When the sperm membrane comes in contact with the egg membrane, the two membranes fuse, and the sperm nucleus enters the cytoplasm of the egg.
This, as implied, happens after the acrosome reaction which digests the jelly-like coating of the egg to allow the sperm to penetrate the egg membrane.Sealed Envelope provide high quality and easy to use online software applications for randomising patients into clinical trials and recording their case report form data (EDC and ePRO).
Outline the Process for Developing Nursing Standards of Practice and Identify the Different Entities That Might Be Involved in Developing a Standard of Practice. When outlining the process for developing standards of practice the American Nurses Association relies on members as the first link in developing an official resource.
The following outline is provided as an overview of and topical guide to chemistry. Chemistry – science of atomic matter (matter that is composed of chemical elements), especially its chemical reactions, but also including its properties, structure, composition, behavior, and changes as they relate the chemical reactions.
Chemistry is centrally concerned with atoms and their interactions. Nov 21, · Subject MCAT Outline of Topics: Summary Difference in content between the old MCAT and the current MCAT format; MCAT Biology.
DNA, genetics, evolution, biotechnology, eukaryotic cell, prokaryotes vs. eukaryotes, viruses, reproductive system, embryology, nervous system, endocrine system, circulatory system, respiratory system, digestive system, immune system, lymphatic system, . Class Outline.
DAY 1 - Project Management Framework and Context The PMBOK ® Guide has been expanded to include the general framework, environment and the role of the project manager in Chapters 1 through 3.
The class covers each framework topic in detail using source reference materials used to create the exam.
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