1. Describe the intracellular events that occur during egg activation. 2. What is an embryo with...
1. Describe the intracellular events that occur during egg activation.
2. What is an embryo with two paternal genomes called? . How about an embryo with two maternal genomes? . Of the two embryos, which one would you predict would have a poorly developed placenta? .
3.Describe the process of calcium release as a result of an action potential transfer from the neuromuscular junction.
Homework Answers
when sperm is reached to egg plasma membrane leads to egg activation ,necessary for further development there are several events occours during egg activation such as rise in calium ions and cortical reaction resumption of cell cycle and further pronuclear and DNA synthessis. answer 3-calcium release as a result of action potential -in resting state ,muscles fibres remains relaxed because the actin and myosin do not form actomyosin ATPcomplex as they carry similar electric charge .the calcium ion concentration is maintained in the sarcoplasmic reticulum after depolarization of sarcolemma, relasing of calcium ion occours ,the depolarization of sarcolemma is transmitted to the sarcoplasmic reticulum and cause release of calcium ions from sarcoplasmic reticulum. 2-androgenetic embryo(embryo with two parental genome)
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1. Describe the intracellular events that occur during egg
activation.
2. What is an embryo with...
1. Describe what resting potential is and how neurons maintain it. 2. Explain the events that...
1. Describe what resting potential is and how neurons maintain it. 2. Explain the events that occur during an action potential, being sure to describe what causes depolarization and repolarization. How do Schwann cells (glial cells) aid in the movement of depolarization along an axon?
1. A. Name the three planes and the positions they each describe to identify a unique...
1. A. Name the three planes and the positions they each describe to identify a unique position in the human body. B. Name the two major ventral body cavities plus the major organs found in them. C. Name the cavities that the heart and lungs reside in. D. Finally, list the six levels of organization in nature. 2. A. Describe the three components of an atom in terms of charge and location. Define atomic mass and atomic number. B. For...
immunology practing samples and not sure if my answers correct. 1. NK cells are effective against...
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1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
read the paragraphs and answer the following questions please read the paragraphs and answer the questions...
read the paragraphs and answer the following questions
please read the paragraphs and answer the questions
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1. According to the paper, what does lactate dehydrogenase (LDH) do and what does it allow...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
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myofiber in a human....
1. Describe the functions of the following reagents in extraction of DNA from corn meal: proteina...
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1. In what ways was Microsoft’s behaviour (a) against the public interest; (b) in the public...
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the public interest; (b) in the public interest?
2. Being locked in to a product or technology is only
a problem if such a product can be clearly shown to be inferior to
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such a case?
etwork effects Microsoft is a vertically integrated
firm (see page 87), with a dominant position in the operating
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DATE: NURS 208A NAME: 1. The function of ribosomes is to: 6. Inb Digest foreign bacteria...
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immunology
practing samples and not sure if my answers correct.
1. NK cells are effective against viral infections because many virus infected cells a. are susceptible to lysis b. are susceptible to phagocytosis c. show reduced levels of MHC class I molecules d. show reduced levels of MHC class II molecules e. none of the above 2. Arachidonic acid serves as a substrate in the lipoxygenase and cyclooxygenase pathways resulting in the production of a. histamine, leukotrienes b. leukotrienes, prostaglandins...
read the paragraphs and answer the following questions
please read the paragraphs and answer the questions
PART 1: Death of a small town An unknown chemical has been added to the drinking water of a small community in central California causing the death of all who have ingested the water. The victims are all in a state of rigor mortis, their bodies contorted with their skeletal muscles in a "locked" or contracted position at the time of death. Although rigor...
1. According to the paper, what does lactate dehydrogenase
(LDH) do and what does it allow to happen within the myofiber? (5
points)
2. According to the paper, what is the major disadvantage of
relying on glycolysis during high-intensity exercise? (5
points)
3. Using Figure 1 in the paper, briefly describe the different
sources of ATP production at 50% versus 90% AND explain whether you
believe this depiction of ATP production applies to a Type IIX
myofiber in a human....
1. Describe the functions of the following reagents in extraction of DNA from corn meal: proteinase K; guanidine HCI; SDS 2. Why is the ratio of the OD at 260 and 280 nm used to estimate DNA purity? 3. In one paragraph, summarize basic principles of PCR technique in your own words. List all the reagents you will need to perform a PCR experiment. Does this method tell you what genetic modifications were made? If yes, describe how you can...
1. In what ways was Microsoft’s behaviour (a) against
the public interest; (b) in the public interest?
2. Being locked in to a product or technology is only
a problem if such a product can be clearly shown to be inferior to
an alternative. What difficulties might there be in establishing
such a case?
etwork effects Microsoft is a vertically integrated
firm (see page 87), with a dominant position in the operating
system market (i.e. Windows) and in certain application...
DATE: NURS 208A NAME: 1. The function of ribosomes is to: 6. Inb Digest foreign bacteria and toxic substances Produces energy from glucose y Aid in cell division Synthesize proteins Which of the following statement is false about the cell membrane? 2. Cell membrane is composed of phospholipid layer The cell membrane prefers large molecules to pass through freely Cell membrane is a semipermeable boundary which determines what can enter and ex the cell The exterior surface is hydrophilic phosphate...
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