Describe the positive and negative aspects of the GATTACA world?

Answer these questions (250 words minimum each):

In GATTACA society what determines a person’s  social position? Describe  the positive and negative aspects of the GATTACA world?
Choose your favorite character from the film. Explain why you choose that person. Would you want to be that person? Why? Why not?

Identify the microbe which deleteriously affects an identified population.

 
 “Salmonella bacteria and its regulation in the Poultry Industry”   

Paper discusses a topic of microbiological importance in the area of public health and identify the microbe which deleteriously affects an identified population. Discuss the different solutions used to control it such ass PAA. A 8 page referenced paper will be written that is supported by a least 7 references (cited in APA format). Criteria by which papers will be graded include (but is not limited to): Organization, Clarity, Quality of the Discussion, Conclusion, Citation/reference agreement and proper grammar and spelling. 

Why are childhood cancers more likely to have a hereditary predisposition than adult onset cancers?

All cancers are characterized by uncontrollable cell growth and division, and when untreated, may be fatal.  Cancers that occur in childhood are usually more malignant than those developed later in life.
1) Why do you suppose there is a higher degree of malignancy in childhood cancer?
2) Why are childhood cancers more likely to have a hereditary predisposition than adult onset cancers? 
3) What is an example of a childhood cancer?

Do endosymbotic relationships still exist today?

Answer original forum 300 words minimum 

Respond to both class mates 100 words minimum 

Follow directions or I will dispute 

original forum – page 1 with references 
student response – page 2 with references 
student response – page 3 with references 

Original Forum

There are fundamental differences between the two types of cells but also similarities. An interesting concept in science is that prokaryotic cells are what gave rise to eukaryotic cells via an endosymbiotic relationship. The two primary examples of this are the mitochondria in animal cells and chloroplasts in plant cells that are very similar to bacteria.

Review the information available at Endosymbiosis and The Origin of Eukaryotes

Once you have reviewed this information, choose ONE of the topics below
Topic 1: Animal cell mitochondria 
OR
Topic 2: Plant cell chloroplasts
Research and Support your post to address the following questions in your initial post in an expository manner;

If you chose animal cells, how are mitochondria replicated within eukaryotic cells?
If you chose plant cells, how are chloroplasts replicated within plant cells?
How are these processes similar to microbes?
Do endosymbotic relationships still exist today?
What are the advantages and disadvantages of such relationships?

Student response

Eric

Good evening class,
From the information that we have been reading about this week, there is a lot to take in and especially trying to understand the prokaryotes and eukaryote relationships. According to the endosymbiotic theory proposed by Lynn Margulis more than 50 years after it was proposed, it was found that mitochondria and chloroplasts originated from prokaryotic organelles due to their “symbiotic relationship within a eukaryotic host” (Parker, 2016). After the theory was widely accepted, she wrote a book and in it explained how endosymbiosis is a huge part of evolution. Prokaryotes arose from eukaryotes with this relationship from the mitochondria. From what I gathered, it sounds like the mitochondria of the prokaryotes find duplicate in the cells of the eukaryotes as its host.
The similarities between this and microbes can be seen through its replication. Throughout its discovery, scientists learned that mitochondria has its own genome and ribosomes. This means that it is capable of its own cellular respiration. These bacterium were taken over by phagocytosis into a host cell where it remained (Parker, 2016). In terms of similarities, microbes have the same behavior when they attach themselves to a host. They remain to have a symbiotic relationship in which the host benefits from its presence, is harmed, or neither of the two.
Endosymbiotic relationships still do exist today as they are part of evolution. As we know, this kind of relationship involves one cell not being able to live without another. We can see this kind of behavior with bacteria. It has been around for millions of years and has learned to adapt itself in order for it to reproduce. Through the use of transformation, they are able to pick up DNA from the surrounding area and transform it to its own (APUS Lessons, 2018). These kinds of relationships are advantageous because cells are able to produce with the help of another cell. However, it is also its downfall. If those cells are not available, an endosymbiotic relationship will not be possible. Without having something to depend on for survival, the evolution of the cell may never be accomplished and thus cease to eventually exist.
-Eric
References
APUS Lessons. (2018). Lesson 2. Retrieved October 9, 2018
Parker, N. (2016). Microbiology. OpenStax. Retrieved 2018

Cristina

Mitochondria and chloroplasts do not divide my mitosis like other cells in the body, but by fission.  Mitochondria come from other, established mitochondria; they have their own unique circular shaped DNA, attaching to the inner membrane similar to the DNA of prokaryotes.  The processes are similar to microbes in their resemblance of ribosomes and appearance.  Organelles have the same sized mitochondria, but different shapes, appearing it to be more rectangular.  The cellular shaped DNA loops around super coiled and doubly covalently linked, similar to DNA bacteria, however mitochondria that is ciliated appears more linear.  Endosymbotic theory still exist and has been built upon to include the suggestion that eukaryotic flagellum arose from an ectosymbiotic spirochete bacterium and prokaryotes living today are not known to have another prokaryote living inside (Origin of Eukaryotes, n.d.) 
            I believe endosymbiosis is an explanation of not only what happened between microbes in the past but also what happened today with different types of organisms, termites are just one example of how prokaryotes live within them in order to help digest wood.  Studies arguing how “unique microbial consortium living in the guts of lower termites is essential for wood-feeding, host and symbiont cellulolytic enzymes synergize each other in the termite gut to increase digestive efficiency” (Peterson & Scharf, 2016).  Bacterial groups in a termite’s lower gut have diverse metabolic methods including acetogenesis, nitrogen fixation, and degradation of lignin phenolics.  Though termites are able to digest nitrogen poor wood and digest it, this microbe rich environment makes them vulnerable to pathogenic infections. 
References:
Origin of Eukaryotes (n.d.). GW. Retrieved from https://www2.gwu.edu/~darwin/BiSc151/Eukaryotes/Eukaryotes.html
Peterson, B. F., & Scharf, M. E. (2016). Lower termite associations with microbes: Synergy, protection, and interplay. Frontiers in Microbiology, 7, 422. doi:10.3389/fmicb.2016.00422

Describe the various historical-cultural influences that have affected human sexuality.

Assignment Instructions
Assignment 1: Human Sexuality Throughout History Time-line
Our readings describe the various historical-cultural influences that have affected human sexuality. These historical-cultural influences include such events as the sexual revolution, the control of conception, the emergence of contraception, as well as the redefining of gender roles throughout history. Many of these events changed the way sexuality is viewed today. Using Prezi (http://prezi.com/), PowerPoint, or Word create a time-line and identify at least 7 important historical events that you believe influence sexuality today. Evaluate each of these events according to its significance in history and culture. Place the date, a brief description, or even a video clip of the historical-cultural influence. Please read the grading rubric below for additional guidance with this assignment.

Describe how the pathology of mellitus diabetes causes a homeostatic imbalance in the system.

 Explain whether mellitus diabetes has a direct or indirect effect on the system you chose, explaining why this system was impacted more than the other systems studied during this week.

Describe how the pathology of the health condition causes a homeostatic imbalance in the system.
Analyze the body’s reactions to the health condition as it attempts to re-establish homeostasis.

Discuss asexual and sexual reproduction in terms of genetic diversity. How is meiosis related to genetic diversity?

Create at least a 350-word blog post in Microsoft® Word in response to the following question:

Female copperhead snakes have the ability to reproduce both sexually and asexually. In your opinion, which method is best for the species in general and why? 

Develop your opinion and include the following in your post:

Discuss asexual and sexual reproduction in terms of genetic diversity. How is meiosis related to genetic diversity? 
Use one of Gregor Mendel’s ideas to support your opinion.

Please provide 1-2 reliable sources

What is infant directed speech?

  
HD101
Ch. 7 Language Development
Study Questions: Write responses to each of the following questions. Write the responses in your own words, do not copy and paste from your textbook, or another source. Cite a reference for the information provided for each question. Include a reference list.
Rubric
· Responses to questions are accurate. – 5 points
· Each question has a reference citation in APA format; reference list is included/accurate. – 2 points.
· Responses are written in student’s voice. – 3 points.

­­­­­­­­1. Define and give a specific example of:
Language
Definition:
Morphemes 
Definition:
Phonology
Definition:
Semantics
Definition:
Prelinguistic language/communication
Definition:
2. What is infant directed speech?  How can parents and others who work with infants use infant directed speech to encourage language development in very young children?
3. Parents are often concerned about whether their child’s language development is on schedule.  What are 2 indicators, according to Anne Dunlea, that an infant is probably developing normally?
Indicator 1:
Indicator 2:
4. Define and give a specific example of:
Holophrases
Definition:
Telegraphic Speech
Definition:
Underextension
Definition:
Overextension
Definition:
Fast mapping
Definition:
Private speech
Definition:
Social speech
Definition:
5.   Describe the 3 views of language acquisition.
1)
2)
3)
6.  What role does poverty play in the development of language?
7. Describe the two approaches to bilingual education.  What are 2 advantages of bilingualism for children?
Approach 1:
Approach 2:
Advantage 1:
Advantage 2:
8. Define:
Syntax
Definition:
Fast mapping
Definition:
Referential Style
Definition:
Rehearsal
Definition:
Metalinguistic skills
Definition:
Metacognition
Definition:
Pragmatics
Definition: