What is the difference between chromosome, chromatin, and chromatid? Please provide examples.

No one should ever consider aging a pathology. Aging is a normal part of the life cycle, and as such is a part of normal anatomy and physiology. However, aging can also bring an increase in certain pathological conditions as well as an increase in certain accident-related pathologies such as occurs with falls. It is important to have an understanding on what is normal and what is not, as well as to appreciate the fact that many elders live long, healthful lives with very few pathologies. Navigate to the National Council on Aging (NCOA).

Implement an "aging well" plan.

Include the following aspects in the assignment:

·         Explore the NCOA site

·         Access the five subtopics under Healthy Living

·         Create a plan using what you learn under each of the five subtopics for age healthfully

·         Your plan may have a heading for each, with bullet points sharing actions

1. What is the concentration of bleach that is used to disinfect your work area? Why is it      used to disinfect rather than to sterilize? When do you disinfect your work area? (3             points)
2. Can a pure culture be prepared directly from a mixed-broth or a mixed-slant culture?             Explain. (3 points)
3. As demonstrated in the video, why do you pass the mouth of the tube through the flame? What is the correct angle? (3 points)

5. How do you know that you have used aseptic technique correctly and have achieved a pure culture? (3 points)
6. What are some advantages and disadvantages of the serial dilution agar plate        technique? (3 points)

7. Describe the different cultural characteristics identified when you use agar plates,         agar slants, and nutrient broth. (3 points)

8. Distinguish between the following: (2 points)

1. Disinfectant (1 point)
2. Antiseptic (1 point)

9. What are some advantages of an agar plate over a slant tube? (3 points)
10. Describe how discrete colonies can appear from a mixed culture using the streak-           plate subculture process. (4 points)

Describe the Cardinal signs of inflammation and why/how do they each arise?

1. Which of the following is NOT true of Eukaryotes?

A. their nucleus contains the chromosomes

B. They contain membrane bound compartments

C. They contain ribosomes which are smaller than those of Prokaryotes

D. They contain many organelle in their cytoplasm

2. Which of the following Eukaryotic microbes generally do NOT contain a cell wall?

A. pungi, B. bacteria, C. algae, D. protozoa

3. In eukaryotes, this structure is studded with ribosomes. Proteins destined for the cell surface, or for outside of the cell, are produced here.

A. nucleosus, B. Smooth endoplasmic reticulum, C. rough endoplasmic reticulum, D. Golgi complex

4. In eukaryotes, this structure sorts proteins, modifies them, and repackages them.

A. Golgi complex, B. nucleous C.rough endoplasmic reticulum D. Smooth endoplasmic reticulum

5. Which of the following structures involved in motility (movement) do Eukaryotic process, but Prokaryotes do not?

A. pili , B. Flagella, C. Capsule, D. Cilia

Address the following (~200-300 words total):

1. How does a normal cell become a cancerous cell? What has to happen to it?
2. The video resources in the MasteringBio assignment focus on the telomerase enzyme role in cancer development. Explain the connection between telomerase activity and cancer.
3. The textbook essay focuses on a mutation that can happen in white blood cells that leads to blood cancer, leukemia. Explain the connection between BCR-ABL mutation and leukemia.
4. Propose a scenario where telomerase and BCR-ABL proteins are active in the same cell.

Describe two ways an RNA virus can induce oncogenesis

Transport of glucose into epithelial cells lining your small intestine is dependent on a pre-existing electrochemical gradient of sodium (Na⁺) ions across the apical plasma membrane. If that gradient is eliminated, glucose transport stops. This is one example of ____________________.

In human beings, the gene for red green colorblindness (r) is sex linked and recessive to its allele for normal vision (R), while the gene for freckles (F) is autosomal and dominant over its allele for nonfreckled (f). A nonfreckled, normal visioned woman whose father was freckled and colorblind, marries a freckled, colorblind man whose mother was nonfreckled.

a. What is the genotype of the woman's father? b. What is the probability that the couple's first child will be a non-freckled, normal visioned girl c. What is the probability that the first two children born to the couple will be freckled and colorblind girls? d. What is the probability that the first child born to the couple will either be a freckled, colorblind boy or a non freckled, normal visioned girl or a non-freckled, normal visioned boy e. What is the probability that the first four children born to the couple will be freckled and normal visioned girls?

Examine the example of the media explosion surrounding the extinction of redheads. What problems does this exemplify in the relationship between science and the media? What are some suggestions you have to mitigate these simplifications and exaggerations of science so that the general public has a better understanding and awareness of scientific reality instead of misinformation?

Cystic fibrosis is an autosomal recessive disease characterized by two copies of a mutated CFTR gene. If one in 100 people in the United States have cystic fibrosis and one in 5.0505050505 people are carriers for cystic fibrosis, calculate the number of individuals that are homozygous dominant. In other words, how many people would have two copies of the normal (non-mutated) CFTR gene. Use the Hardy-Weinberg equation and explain how you determined this. 

How did Watson and Crick's suggestion that nitrogen containing bases in nucleotides pair together in DNA support Chargaff's rule; and allow the double helix to have a constant width (as indicated by Franklin's X-ray crystallography studies?

what enzyme does Rubisco catalyze and why is it important?