Questions
Watch the video How Cells Divide and How Chemotherapy Works and answer the following questions: What...

Watch the video How Cells Divide and How Chemotherapy Works and answer the following questions:

  • What does it mean that the chemotherapy treatment is nonspecific?
  • Find an example of a specific method of a treatment for cancer. How does it work?

In: Biology

Can you explain about the four types of microfilament structures and give examples for each 1)...

Can you explain about the four types of microfilament structures and give examples for each
1) Networks ( random vs highly organized)
2) Bundles ( Parallel and Antipatallel )
what they do ( their function)
where they found.

In: Biology

choose one of the factors that impacts reaction rate(conecentration, temp, or ph) and in your own...

choose one of the factors that impacts reaction rate(conecentration, temp, or ph) and in your own words provide a plausible biological explanation for your experimental results for that factor.

In: Biology

yeah! humans average hear beat in a min

yeah! humans average hear beat in a min

In: Biology

What is the field of view of the 40x objective if the 4x objective has a...

What is the field of view of the 40x objective if the 4x objective has a field of view of 2mm?

A.) 0.2mm

B.) 0.5mm

C.) 0.3mm

D.) 0.1mm

E.) 0.4mm

In: Biology

What are the powerful structures that are found in the abdomen? What is their function?

What are the powerful structures that are found in the abdomen? What is their function?

In: Biology

For your second paragraph, see the cellular organelle assigned to you according to your name in...

For your second paragraph, see the cellular organelle assigned to you according to your name in the table below. Answer the following questions for your assigned organelle or cellular structure (my assigned cellular organelle is Ribosome) What is the main function of your cellular organelle? What types of cells in the human body contain large amounts of your organelle? If your organelle was damaged, what cellular process would be disrupted? What might happen to the cell as a consequence of damage to your organelle and disruption of that cellular process? Come up with an analogy for your organelle to relate its function to something in real life. Explain the reasoning behind your analogy. For example, DNA might be considered a recipe book, since it contains the instructions to make all the components of cells.

In: Biology

For each populations, calculate the expected genotype frequencies to determine which of these populations is NOT...

For each populations, calculate the expected genotype frequencies to determine which of these populations is NOT in Hardy-Weinberg equilibrium.

1 AA, 18 Aa, 81 aa

20 AA, 20 Aa, 5 aa

25 AA, 10 Aa, 1 aa

50 AA, 20 Aa, 30 aa

Calculate the Chi-square statistic (rounded to 2 significant figures) to show that your answer choice in the previous question is not in Hardy-Weinberg equilibrium.

3.5   

26

34

4.9

In: Biology

The population of the developing word today is much larger than the population of developed world...

The population of the developing word today is much larger than the population of developed world
a) explain in a simple term the historic reasons that led to this situation
b) describe and explain one of the most effective ways to promote lower fertility rate in developing countries without having to resort to coercion

In: Biology

Question 4 In capillary beds, there is mass movement of fluids and molecules into and out...

Question 4

In capillary beds, there is mass movement of fluids and molecules into and out of capillary beds. For movement of fluids, simple diffusion is not sufficient and two pressure-based mechanisms are utilized.

  1. Describe the action of the competing forces driving filtration of fluids in a capillary bed.
  2. Describe the action of the competing forces driving reabsorption of fluids in a capillary bed.
  3. Predict how physiological changes in the capillary beds in response to an increase in body temperature restores homeostasis.

In: Biology

Is there ever an acceptable reason for someone to commit suicide?  If so, what?  If not,...

Is there ever an acceptable reason for someone to commit suicide?  If so, what?  If not, should we always attempt to stop others from ending their lives?

In: Biology

Targeting the resistance genes specifically could be a potential solution According to this study from NCBI,...

Targeting the resistance genes specifically could be a potential solution

According to this study from NCBI, the two separate resistant strains of Y. pestis in Madagascar was not an isolated phenomenon, and could indicate a serious threat to public health. There is concern that another fatal plague epidemic is a very serious possibility and our current methods of treatment with antibiotics will not be effective. It is interesting to me that the resistant strains carry the resistance genes on the same plasmid that was likely acquired via conjugation. Would it be possible to attack this gene specifically through various gene therapy techniques instead of treating the pathogen via broad- or narrow-spectrum bactericidal antibiotics?

In: Biology

Can derivatives of current antimicrobials be the answer to solving infections that are treated by beta-lactams?...

Can derivatives of current antimicrobials be the answer to solving infections that are treated by beta-lactams?

We discussed in class that beta-lactams have become resistant against microbes because they have developed the ability to alter protein receptors making beta-lactams unable to bind. This article discusses a new antimicrobial that would attack against Streptomyces cattleya. Penems the new development contains a "sulfur atom within the ring" allowing binding. This "high affinity for penicillin receptors" allows the halt of bacterial growth. These have been a solution with vast research in recent developments the past 25 years because it is only "slightly susceptible to hydrolysis by type I cephalosporinases."

list any sources

In: Biology

4. In fruit flies, normal eyes (+) are dominant over small eyes (ey) and straight wings...

4. In fruit flies, normal eyes (+) are dominant over small eyes (ey) and straight wings (+) are dominant over curly wings (Cy). Work the following crosses through the F2 generation, and determine the genotypic and phenotypic ratios for each generation. Assume P1 individuals are homozygous: a. +, + x ey, Cy b. +, Cy x ey, + c. +, + x +, Cy

In: Biology

1.Review how patients who might benefit from Targeted therapies are identified. 2. Select one currently approved...

1.Review how patients who might benefit from Targeted therapies are identified.
2. Select one currently approved targeted therapy and describe it's mechanism of action and which cancer it is used to treat.
Include the reference.

In: Biology