Questions
What is the beauty of cellular adaptation?

What is the beauty of cellular adaptation?

In: Biology

How is a coniferophyta megagametophyta different from a magnoliophyta megagametophyta?

How is a coniferophyta megagametophyta different from a magnoliophyta megagametophyta?

In: Biology

DNA transposase binds to the ____ during transposition, with the ____ resulting from the ____ generated...

DNA transposase binds to the ____ during transposition, with the ____ resulting from the ____ generated at the target site.

In: Biology

Does anyone know how to solve this question? I am so lost. Thank you! You are...

Does anyone know how to solve this question? I am so lost. Thank you!

You are studying the source of new virus that has recently infected humans. You suspect that the virus was transferred from other primates (they exhibit a similar infection), specifically chimpanzees, gorillas, or orangutans. You sample blood from several infected humans and sequence some viral genes. You then build a phylogenetic tree with the human sequences and all the known strains from each primate. Draw a hypothetical phylogenetic tree that would suggest that the virus came from gorillas, and this transfer occurred twice independently. Label chimp sequences (c), gorilla (g), orangutans (o), and humans (h).

In: Biology

If TRAP binds a read-through transcript, translation of the trpE gene is suppressed, how?

If TRAP binds a read-through transcript, translation of the trpE gene is suppressed, how?

In: Biology

Explain the importance of essential amino acids to animals

Explain the importance of essential amino acids to animals

In: Biology

Final report of GLP animal study Study Groups The groups in the study are as follows:...

Final report of GLP animal study

Study Groups

The groups in the study are as follows: Group 1 (Vehicle), Group 2 (Low Dose), Group 3 (Medium Dose), Group 4 (High Dose) Group 5 (High Dose with a 14 day Recovery Period) 10 male and 10 females per group Group 6 (Toxicokinetic Group - Vehicle (5 males & 5 females) & High Dose (5 males & 5 females).

Outcomes:

1) The test item was stated to be >98% pure by the Sponsor; however no Certificate of Analysis was received.

2) Following issuing of the study plan the Sponsor asked that the higher dose of the test item be administered at 600 mg/kg/day rather than 700mg/kg/day.

3) Due to an experimental error during the study, animals from Group 1 (vehicle) were administered vehicle twice rather than once on the 14th day of dosing.

4) During acclimatisation period some females and males were housed together for a single day. Fortunately assessment of the females during the course of the study indicated that they were not pregnant and therefore this error did not influence the study outcomes.

5) Three animals that received a low dose of the test item were without water for the 24 hours before necropsy. The Study Plan stated that they were to be fasted but have access to water.

6) The humidity of the room the animals were housed in reached 90% on day 14 of dosing. The Study Plan stated limits of 30-70%.

Biochemical Analysis

Group 1: Values for all parameter were within historical and literature range

Group 2: Values for all parameter were within historical and literature range

Group 3: Values for most parameters were within historical and literature range, with the exception of slightly elevated Alanine aminotransferase (ALT), Aspartate aminotransferase (AST) and Sorbitol dehydrogenase (SDH)

Group 4: Values for most parameters within historical and literature range, with the exception a significantly higher level of Alanine aminotransferase (ALT), Aspartate aminotransferase (AST) and Sorbitol dehydrogenase (SDH). ALT, AST and SDH were very high (ALT>AST) in the animals that were euthanised.

Group 5: For those animals that completed the study the values for all parameters, after a 14-day recovery period, were within historical and literature range.

Haematology

White blood differentials were normal in all animals.

The Haematocrit was elevated in 3 animals that received the low dose otherwise all other animals had Haematocrit levels within the normal range.

Histology

Light microscopy of tissue sections showed an increased recruitment of inflammatory cells in the liver. There were no changes in the spleen, kidney or any other organ examined.

General Observations

The vehicle and low dose groups exhibited no signs of toxicity.

The mid-level group showed mild to moderate signs of toxicity manifesting as an altered gait and lack of grooming in 3 of the 10 animals.

The high dose group showed moderate signs of toxicity manifesting as an altered gait and lack of grooming in 5 of the 10 animals. Three animals (2 male, 1 female) from group 4 and 4 animals from group 5 (2 male and 2 female) were found to exhibit severe signs of toxicity and were euthanised between the 19th and 24th day of dosing. These animals also exhibited a decrease in body weight of 5% per day for the 3 days prior. Blood was collected from these animals and all clinical biochemistry and haematology performed.

Toxicokinetics/Dose formulation

Toxicokinetic analysis indicated that mean Cmax, AUClast& T1/2 for the test item were comparable between males & females on Day 1.

Both Cmax & AUClast increased on Day 28, with mean values consistently higher for males compared to the corresponding females. T1/2 remained similar to Day 1 values for both males and females.

Analysis of the dose formulation indicated that the doses administered were as stated in the study plan.

Question

Assume the role of QA and, taking into account all the different aspects which may have been audited during the course of the study, prepare an appropriate QA Statement for inclusion in the Final Report.

Pls write in detail and follow the requirement below

A Quality Assurance Programme statement listing the types of inspections made and their dates, including the phase(s) inspected, and the dates any inspection results were reported to management and to the Study Director and Principal Investigator(s), if applicable. This statement would also serve to confirm that the final report reflects the raw data.

(Using OECD GLP # 1 & OECD Guideline 407 to assist you)

In: Biology

During the first lecture we saw a number of optical illusions. What key aspect of sensory...

During the first lecture we saw a number of optical illusions. What key aspect of sensory processing did we learn from these examples?

a. That humans have difficulty perceiving parallel lines.

b. That perception is objective: the same visual scene will look identical to all observers.

c. That our perception is heavily influenced by top-down processes.

d. That sensory processing is unambiguous: our senses always precisely represent our environment.

In: Biology

Which of the following microbes are considered obligate intracellular parasites? A) Rickettsia rickettsii B) Mycoplasma pneumoniae...

Which of the following microbes are considered obligate intracellular parasites?

A) Rickettsia rickettsii

B) Mycoplasma pneumoniae

C) Mycobacterium tuberculosis

D) viruses

E) Chlamydia trachomatis

In: Biology

Explain one specific thing that you learned from this class about a component of nutrition and...

Explain one specific thing that you learned from this class about a component of nutrition and its impact on performance.

In: Biology

Final report of GLP animal study Study Groups The groups in the study are as follows:...

Final report of GLP animal study

Study Groups

The groups in the study are as follows: Group 1 (Vehicle), Group 2 (Low Dose), Group 3 (Medium Dose), Group 4 (High Dose) Group 5 (High Dose with a 14 day Recovery Period) 10 male and 10 females per group Group 6 (Toxicokinetic Group - Vehicle (5 males & 5 females) & High Dose (5 males & 5 females).

Outcomes:

1) The test item was stated to be >98% pure by the Sponsor; however no Certificate of Analysis was received.

2) Following issuing of the study plan the Sponsor asked that the higher dose of the test item be administered at 600 mg/kg/day rather than 700mg/kg/day.

3) Due to an experimental error during the study, animals from Group 1 (vehicle) were administered vehicle twice rather than once on the 14th day of dosing.

4) During acclimatisation period some females and males were housed together for a single day. Fortunately assessment of the females during the course of the study indicated that they were not pregnant and therefore this error did not influence the study outcomes.

5) Three animals that received a low dose of the test item were without water for the 24 hours before necropsy. The Study Plan stated that they were to be fasted but have access to water.

6) The humidity of the room the animals were housed in reached 90% on day 14 of dosing. The Study Plan stated limits of 30-70%.

Biochemical Analysis

Group 1: Values for all parameter were within historical and literature range

Group 2: Values for all parameter were within historical and literature range

Group 3: Values for most parameters were within historical and literature range, with the exception of slightly elevated Alanine aminotransferase (ALT), Aspartate aminotransferase (AST) and Sorbitol dehydrogenase (SDH)

Group 4: Values for most parameters within historical and literature range, with the exception a significantly higher level of Alanine aminotransferase (ALT), Aspartate aminotransferase (AST) and Sorbitol dehydrogenase (SDH). ALT, AST and SDH were very high (ALT>AST) in the animals that were euthanised.

Group 5: For those animals that completed the study the values for all parameters, after a 14-day recovery period, were within historical and literature range.

Haematology

White blood differentials were normal in all animals.

The Haematocrit was elevated in 3 animals that received the low dose otherwise all other animals had Haematocrit levels within the normal range.

Histology

Light microscopy of tissue sections showed an increased recruitment of inflammatory cells in the liver. There were no changes in the spleen, kidney or any other organ examined.

General Observations

The vehicle and low dose groups exhibited no signs of toxicity.

The mid-level group showed mild to moderate signs of toxicity manifesting as an altered gait and lack of grooming in 3 of the 10 animals.

The high dose group showed moderate signs of toxicity manifesting as an altered gait and lack of grooming in 5 of the 10 animals. Three animals (2 male, 1 female) from group 4 and 4 animals from group 5 (2 male and 2 female) were found to exhibit severe signs of toxicity and were euthanised between the 19th and 24th day of dosing. These animals also exhibited a decrease in body weight of 5% per day for the 3 days prior. Blood was collected from these animals and all clinical biochemistry and haematology performed.

Toxicokinetics/Dose formulation

Toxicokinetic analysis indicated that mean Cmax, AUClast& T1/2 for the test item were comparable between males & females on Day 1.

Both Cmax & AUClast increased on Day 28, with mean values consistently higher for males compared to the corresponding females. T1/2 remained similar to Day 1 values for both males and females.

Analysis of the dose formulation indicated that the doses administered were as stated in the study plan.

Question

Please summrize the result in the way blow

Results

a) A summary of results;

b) All information and data required by the study plan;

c) A presentation of the results, including calculations and determinations of statistical significance;

d) An evaluation and discussion of the results and, where appropriate, conclusions.

In: Biology

Intermediates of the citric acid cycle can participate in which of the following metabolic pathways? Group...

Intermediates of the citric acid cycle can participate in which of the following metabolic pathways?

Group of answer choices

gluconeogenesis

fatty acid anabolism

heme biosynthesis

amino acid anabolism

all of the above

In: Biology

Why is it that HIV-1 RT can have a mutation in p66 and still have the...

Why is it that HIV-1 RT can have a mutation in p66 and still have the exact same mutation in p51? help me

In: Biology

Briefly describe two mechanisms that contribute to preserving genome stability (DNA replication accuracy).

Briefly describe two mechanisms that contribute to preserving genome stability (DNA replication accuracy).

In: Biology

What feedback loops are involved in CTE (stimuli, afferent signals, control centers, different signals, effectors and...

What feedback loops are involved in CTE (stimuli, afferent signals, control centers, different signals, effectors and physiological responses)? Name the specific nerves affected as well as areas of the brain or spinal cord that act as the control center.

In: Biology