Bacteria and other microbes can be used to "clean up" an oil spill by breaking down oil into carbon dioxide and water. Two samples isolated from the Deepwater Horizon leak in the Gulf of Mexico were labeled A and B. The DNA of each was isolated and the percent thymine measured in each sample. Sample A contains 18.7 % thymine and sample B contains 27.9 % thymine. Assume the organisms contain normal double‑stranded DNA and predict the composition of the other bases.
In: Biology
1. Discuss what is cell theory and why all living things have cells.
2. Discuss how cohesion and adhesion differ or compare.
3. Discuss how cells derived from pre-existing cells.
4. Discuss why does ice float on water? What would happen if ice was able to sink
In: Biology
In: Biology
Why do you think it is that quick weight loss does not lead to long term weight loss?
In: Biology
In: Biology
Assume that three capital letter alleles (A, B and C) control dark pigmentation because more melanin is produced. The lower-case alleles of these three genes (a, b & c) control light pigmentation because lower amounts of melanin are produced. The effect of these alleles is additive meaning a genotype with all capital alleles (AABBCC) has the maximum amount of melanin and very dark skin. A genotype with all small case alleles (aabbcc) has the lowest amount of melanin and very light skin. Each capital allele produces one unit of color, so that a wide range of intermediate skin colors are produced, depending on the number of capital alleles in the genotype.
What would be the possible skin colors (based upon total units of color) produced and their ratios by the following mating: Male - AaBbCc (3 units) X Female - aabbCc (1 unit).
In: Biology
Question 4
Select all that apply Which of the following are chemical property characteristics that could impact pharmacokinetics?
A. formulation
B. half life
C. patient age
D. interactions
E. disease
In: Biology
In: Biology
Explain what is meant by the following levels of protein structure: 1) primary structure; 2) secondary structure; 3) tertiary structure; and 4) quaternary structure. For secondary structure, name each type of secondary structure, and for each type, describe the structure and explain the roles of hydrogen bonding in that type of secondary structure. For tertiary structure, describe the role of hydrophobicity in tertiary structure; also, explain how hydrophobicity affects tertiary structure of a cytoplasmic protein and how it affects the tertiary structure of a membrane protein. For quaternary structure, give the name of a protein that has quaternary structure and describe, generally, its quaternary structure.
In: Biology
Choose either the mitochondria or the chloroplast to answer this question.
*Name the major reactions of cellular respiration or photosynthesis and give their location within the organelle
*which structures within this organelle is heavily folded? Why is it heavily folded (mention how this form relates to cellular respiration or photosynthesis)?
In: Biology
Define iPS cell and describe what these cells are/do/how they function
Describe how I might make an iPS cell that is useful for treating a skeletal muscle tear to speed up the repair process
In: Biology
Why do humans have different skin color? Does UVR play a significant role in this and what is the history of pigmentation in reference to our ancestors?
In: Biology
In humans, which process increases genetic diversity the most?
A. |
mutations |
|
B. |
recombination |
|
C. |
gamete fusion |
|
D. |
independent assortment |
|
E. |
linkage |
In: Biology
1. uncoating or viral nucleic acid
a) does not occur in bacteriophage multiplication
b) occurs before replication
c) involves enzymatic destruction of the cas...
2. satellite viruses are?
a) also called viroids
b) significants photogens of plants
c) dependent in other viruses for replication
d) the cause of spongiform encephalopathy
3. atypical viruses without a capsid are called?
a) caples viruses
b) helical viruses
c) complex viruses
d) viroids
In: Biology
REVERSE CASE STUDY : Home Care for the Elderly Client With Dementia
Primary Character: Scenario:
Instructions:
Home health nurse
The home health nurse is making a visit to a 72-year-old client with dementia who is being cared for at home by a 75-year-old spouse/family member. They live independently in a two-story home in a small suburban neighborhood. The home health nurse is doing an initial home health assessment.
Create a history of the problem that could lead to this scenario, including the experiences and actions of the primary character involved; a list of other persons/characters (nurses, staff, patients, etc.) involved, including their roles and previous actions that led to the scenario outcome(s); and future actions the primary character may take to address the situation, as well as evaluation criteria for determining the effectiveness of these actions. This information may be presented in a concept map or narrative form, or in any form of the student’s or group’s choosing. A concept map template has been provided below. A narrative template begins on the next page.
Concept Map Template:
Narrative Template
Primary Character:
Primary Character Actions:
Secondary Character(s):
Secondary Character(s) Actions:
Scenario:
Additional Assessment or Other Data:
Primary Character Interventions:
Evaluation Criteria and Expected Outcomes:
In: Biology