1.List the basic sequence of cellular events resulting in protein production and export from the cell, beginning at DNA in the nucleus and ending with vesicular exocytosis. Include the following terms and describe what happens at each organelle or cellular structure: ribosomes, mRNA, DNA, rough the endoplasmic reticulum, exocytosis, nuclear pore complex, Golgi complex (cis and trans sides), nucleus, microtubules, vesicle.
2. Be able to label and describe the function of the cellular features of the eukaryotic mitochondria.
3. Be able to label and describe the function of the cellular features of the chloroplast.
4. Describe the endosymbiont theory and its importance to the evolution of multicellular organisms.
5. Be able to list and briefly describe the major roles of membrane proteins.
In: Biology
Biological Psychology
How might the events of COVID-19 impact our neurological and/or biological processes? Find one relevant article and discuss how the findings may impact your life or the lives of others.
In: Biology
how do the resorbable polymers PLGA and PCL differ in their mechanisms of resorption? how are the resorption rates affected by molecular weight, degree of crystallinity and crosslinking. in considering the biocompatibility of a resorbable polymer, how do the rates of resorption and resorption by-products affect the cellular response? describe the inflammatory response associated with resorbable polymers.
In: Biology
In: Biology
First: What is the difference between a resistant variety and a
resistant original? When are they used in IPM programs with
examples?
Second: What are IGRs? And why are they used in IPM programs? And
how it works if used in IPM programs
Third: Through your study of the components of IPM programs in
protected tomatoes (combating the use of agricultural means or
resistant varieties or sterilization
Soil before planting or using biological or chemical control (),
answer the following questions:
- How does the IPM program for Butritz disease work on protected
tomatoes?
- How does IPM program whitefly fly on protected tomatoes?
In: Biology
a- What is the function of centrioles in sperm? b- Please write and explain in detail the polyp and medusa stages of Obelia.
In: Biology
In: Biology
In: Biology
In: Biology
In: Biology
The immune system (select the MOST CORRECT statement)
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The second exposure to a given antigen leads to a rapid adaptive immune response that reaches its peak (as measured by antibody concentration in plasma) within 3-4 days. |
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Granzymes are synthesized by both cytotoxic T cells and Natural Killer Cells and are stored in secretory vesicles. |
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Granzymes are specialized enzymes that can diffuse across the plasma membrane of cells without the help of a channel or carrier protein. |
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Both a) and b) are correct and c) is incorrect |
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a), b) and c) are all correct |
Digestion of food (select the MOST CORRECT statement)
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Cnidarians such as Hydra have a gastrovascular cavity and use both extracellular and intracellular digestion. |
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The gastrovascular cavity of Hydra is used for both nutrient absorption and gas exchange. |
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Birds have a structure called the gizzard that is specialized for the absorption of nutrients. |
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Both a) and b) are correct and c) is incorrect |
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a), b) and c) are all correct |
In: Biology
Suppose you are at a party, and one of your human friends decides to run around the room screaming "I'm a jawed fish." It's not a costume party, so the other guests look at your friend a bit oddly-- actually a lot oddly-- and they edge away. But you stand up and say that your friend is right. Assuming that the other partygoers are trained in phylogenetic systematics, what argument could you make to convince them? Your answer will be most convincing if it is constructed in complete sentences and uses specific and appropriate terms (spelled correctly); you could also use figures to help illustrate the point you are making.
In: Biology
How many types of DNA ligases? and describe the (Weiss unit) used to determine the concentration these DNA ligases?
In: Biology
PART 1
You will want to solve this problem as a Punnett square and use that to answer the questions below. You may select multiple answers for the genotypes, and just one answer for the phenotypic ratio.
Predict the genotypes of the F1 offspring and phenotypic ratios of these offspring that would result from the following fruit fly crosses:
Cross B: a cross between a sepia-eyed male and a white-eyed female (male genotype = Xw+Y se se ; female genotype = XwXw se+se+ )
PART 2
What is the number of each phenotype would you predict in the offspring of F1xF1 crosses of B that you described above if you looked at 16 offspring?
Note: You will have to think carefully about what phenotype is going to show in the case of XwXwse se and XwYse se (double homozgyous recessive male or female)
Write only the numbers of predicted offspring in each box, for example: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, or 16. Do not use any words, spaces, or punctuation - just a number. All of your blanks together should add up to 16.
__: WT (Red eyed) males
__: Sepia eyed males
__: White eyed males
__: WT (Red eyed) females
__: Sepia eyed females
__: White eyed females
In: Biology
List THREE Muscle Tissues. In SIX different ways, Compare and Contrast between the three Muscle Tissue types.
In: Biology