Questions
What can be the result of a genetic (DNA or plasmid) mutation in a prokaryote? Select...

What can be the result of a genetic (DNA or plasmid) mutation in a prokaryote?

Select one or more:

a. Endospore formation

b. Antibiotic resistance

c. Meiosis beginning

d. Exponential decay in growth

e. All of the above

Which statement does not describe the structure of a virus?

Select one or more:

a. Some have a core of a nucleic acid (DNA) surrounded by a protein

b. Some have a core of a nucleic acid (RNA) surrounded by a protein

c. A capsid surrounds the nucleic acid core

d. Some have an envelope that surrounds the capsid which is rich in proteins and lipids

e. None of the above

In: Biology

Negative pressure rooms are sometimes referred to as source isolation rooms, while positive pressure rooms are...

Negative pressure rooms are sometimes referred to as source isolation rooms, while positive pressure rooms are sometime called protective isolation rooms. Explain the thinking behind these names.

In: Biology

Explain what sludge is, its importance and what needs to be done about it.

Explain what sludge is, its importance and what needs to be done about it.

In: Biology

for the drug escitalopram which has a half life of 27-32 hours what is it mechanism...

for the drug escitalopram which has a half life of 27-32 hours

what is it mechanism of actions, the pharmacokinetics, it therputic use and adverse affects of escitalopram

molecular target of escitalopram

explain full mechanism of action of escitalopram

    • What does escitalopram do at the molecular level?
    • What does escitalopram do at the cellular level?
    • What does the escitalopram at the tissue/organ level?
    • What does this mean for the overall effect on the body? (i.e. What is the systemic effect?)?
  • Describe ONE therapeutic use for escitalopram, and explain why it is used for the treatment of this condition.
  • Identify ONE adverse effect of escitalopram that is directly related to its mechanism of action. Explain why this adverse effect occurs.
  • Based on escitalopram half life of 27-32 hours:
    • Calculate how long it takes to eliminate 95% of a single dose of your drug from the body. Provide the range of values and the equation used.
    • From the given pharmacokinetics parameter, explain which elimination model the drug is likely to follow.

In: Biology

Both fungi and animals are heterotrophs although they are markedly different in how they acquire nutrients....

  1. Both fungi and animals are heterotrophs although they are markedly different in how they acquire nutrients. Explain.
  1. Give the name of the sexual spore produced within or on each of the following structures, and cite the group of fungi.

                                             Type of Spore                                      Group Name

    a. Sporangium          

    b. Ascus                                                                               

    c. Basidium     

   

  1. Ascomycota produce what type of spore during asexual reproduction?

  1. What kind of reproduction is used by the zygomycota?

  1. A student is observing fruiting bodies. If the spores are projecting from a club-shaped structure, the fungus is a _________.    If the spores are produced within a saclike structures, the fungus is a ________.

  1. Explain the composition of lichens and why this composition is usually considered a mutualistic relationship.

In: Biology

2. You're a beta fish breeder and have noticed that you have a few fish that...

2. You're a beta fish breeder and have noticed that you have a few fish that display a totally novel ruby red coloring pattern. This ruby red color has since become is very popular in your Etsy store, but you are STRUGGLING to develop a purebreeding strain. Like, every time two ruby red betas are crossed, you end up with a fair number of ruby reds, but still a significant number of betas featuring the standard-type coloration. In your most recent ruby red x ruby red mating attempt, you ended up with 57 ruby red betas and 28 standard betas. All other such matings gave similar phenotypic offspring ratios. Explain what's going on here. (<4 sentences)

In: Biology

When and how does our immune system discriminate between self and nonself? What are the consequences...

When and how does our immune system discriminate between self and nonself? What are the consequences of failed recognition of self by the adaptive immune system??

In: Biology

1.Staphylococcus epidermidis 2.Streptococcus pyogenes 3.Mycoplasma pneumonia 4.Salmonella enterica 5.Hemophilus influenza **Discuss whichone of these appropriately describes...

1.Staphylococcus epidermidis
2.Streptococcus pyogenes
3.Mycoplasma pneumonia
4.Salmonella enterica
5.Hemophilus influenza

**Discuss whichone of these appropriately describes each bacteria on the list:
• Potential benefits as Normal Microbiota
• Mode of transmission in HAIs or Nosocomial Infections
• Public health importance as an Opportunistic Pathogen.
• Pathogenicity and the Disease it causes.

In: Biology

discuss the use, purpose and evaluation of Westguard Rules along with interpretation of histogram results. What...

discuss the use, purpose and evaluation of Westguard Rules along with interpretation of histogram results. What are the Westguard Rules and how should they be used to assess quality control results? What are the various types of preanalytical, analytical and postanalytical sources of error and how can these potentials for error be reduced? What responsibility do lab managers have in ensuring the quality of testing results and what are some quality processes that should be implemented?

In: Biology

Briefly describe the three stages of wastewater treatment.

Briefly describe the three stages of wastewater treatment.

In: Biology

given that proteins are manufactured by ribosomes and (in eukaryotes) are often subsequently dumped into the...

given that proteins are manufactured by ribosomes and (in eukaryotes) are often subsequently dumped into the lumen of the rough endoplasmic reticulum (e.r.), what problems might transmembrane proteins present in terms of shuttling them to their appropriate location? In other words, what can cells do to ensure that nascent hydroPHOBIC proteins make it to their final destination in a largely hydrophilic environment? Please number answers. Please do not screenshot a handwritten response. Please do not upload a handwritten cursive response. Text only. Please do not copy and paste. Thank you.

In: Biology

Explain the challenges the vertebrates faced in moving from water onto land, and give a ‘solution’...

Explain the challenges the vertebrates faced in moving from water onto land, and give a ‘solution’ or response to each challenge that can be seen in modern reptiles.

In: Biology

please I need a computer typing answer Glycosylation increases the structural diversity of the glycome and...

please I need a computer typing answer

Glycosylation increases the structural diversity of the glycome and proteome. Discuss the structural differences between proteoglycans and mucins. What is the functional significance of each glycoprotein in cartilage formation and the mucosal environment of the body, respectively?

In: Biology

What is meant by a shift and a drift mutation in viruses?

What is meant by a shift and a drift mutation in viruses?

In: Biology

Predict the number of new infections of COVID-19 that would occur in the state of New...

Predict the number of new infections of COVID-19 that would occur in the state of New York in 16 days if social distancing had been relaxed on April 17, and we had resumed normal activities.  (The #infected on April 17 = 16,809, generation time = 4 days, and R0= 2.3)

In: Biology