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
Why is it important to life that interactions be weak, noncovalent interactions?
In: Biology
1. Female mammals who are carriers of an X-linked recessive trait caused by a non-functional allele would express the encoded protein:
a. at the full amount in some cells, but express no protein in other cells
b that displays a novel function in the protein to produce a different dominant trait
c that displays dominance due to haploinsufficiency
d at 1/2 of the normal amount in each cell in a form of the mutant protein
e that would stop function in a dominant negative manner
2. You are following segregation of four genes in a cross – A, B, C, and D Dominant alleles are capital letters and recessive alleles are small case.
You take the cross - aa Bb cc Dd x Aa Bb CC Dd. What is the frequency expected among the progeny for the heterozygous genotype: Aa Bb Cc Dd?
1/4
1/16
1/32
0
1/8
In: Biology
A snapdragon plant has red, pink, or white flowers, inherited in an incomplete dominance pattern. It’s height is inherited in a dominant/recessive pattern. It can come in tall (T) or dwarf (homozygous recessive) varieties. What is the ratio expected if you cross a pink-tall (Tt) plant with a pink-short (tt) plant?
In: Biology
How does the origin story of the double helix differ between the "classic" story told by James Watson and that described in the video about Rosalind Franklin? Take a few moments to do some due diligence on James Watson (you can start here). When teaching and discussing science with students, should we separate the science from the person, or are the two inextricably linked?
In: Biology
the fact that mitochondria and chloroplasts contain their own DNA that is genetically similar to prokaryotic DNA is supporting evidence for the ______theory.
A. Extrusive
B. Exosymbiotic
C. Evolution
D. Exogenous
E. endosymbiotic
In: Biology
Compare and contrast Chondrichthyes and Actinopterygii fishes. Make a table to compare. Think about physical (anatomical) and ecological/behavioral differences.
In: Biology
connexons/gap junctions are involved in ____
- synaptic
- direct contact
- paracrine
- endocrine
In: Biology
“There must be a God said the goldfish, otherwise who changes the water!” Write a one page reflection on the point behind this remark, based on your thinking about the cosmological argument. One page response.
In: Biology
You want to study how a spinach sucrose transporter is regulated during plant development. Propose one experiments that seek to understand one regulatory mechanism that might be involved. Made sure to include the following: what your experiment seeks to specifically understand? What are your controls and why each is needed? And, what are your expected results?
In: Biology
Translocation is the collective movement of the mRNA and tRNA during translation. These steps occur in the following order:
| A. |
P-site tRNA moves to the E-site and the A-site tRNA moves to the P-site |
|
| B. |
E-site tRNA moves out of the ribosome and the P-site tRNA moves to the E-site |
|
| C. |
E-site tRNA moves to the P-site and the P-site tRNA moves to the A-site |
|
| D. |
A-site tRNA moves to the P-site and the P-site tRNA moves to the E-site |
In: Biology
Match each of the following terms to its definition.
|
|
|
Prediction |
|
Protons |
|
Lipids |
|
Eukaryotes |
|
Homeostasis |
|
Chloroplast |
|
Phosphorylation |
|
Beta-carotene |
|
Cellular respiration |
|
|
In: Biology