N10/4/BIOLO/HP2/ENG/TZ0/XX
88106002
Biology
HigHER lEvEl
PaPER 2
Candidate session number
Tuesday 2 November 2010 (afternoon)
0
2 hours 15 minutes
0
INSTRUCTIONS TO CANDIDATES
Write your session number in the boxes above.
Do not open this examination paper until instructed to do so.
Section A: answer all of Section A in the spaces provided.
Section B: answer two questions from Section B. Write your answers on answer sheets.
Write your session number on each answer sheet, and attach them to this examination paper and your cover sheet using the tag provided.
• At the end of the examination, indicate the numbers of the questions answered in the candidate box on your cover sheet and indicate the number of sheets used in the appropriate
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The photograph below of part of a gel shows relative amounts of messenger RNA produced from these three genes by the submergence-intolerant variety, O. sativa japonica, and by the submergence-tolerant variety, O. sativa indica, at different times of a submergence period, followed by a recovery period out of water.
O. sativa japonica
O. sativa indica
Sub1A
Sub1B
Sub1C
0
1
submergence
3
7
10
recovery
R1
R3
0
1
submergence
3
7
Duration of submergence and recovery / days
10
recovery
R1
R3
[Source: Adapted from “Sub1A is an ethylene-response-factor-like gene that confers submergence tolerance to rice” (2006) Kenong Xu, Xia Xu, Takeshi
Fukao, Patrick Canlas, Reycel Maghirang-Rodriguez et al. Nature, 442, pp. 705—708. Adapted by permission from Macmillan Publishers Ltd (c) 2006.]
(c)
(i)
Determine which gene produced the most mRNA on the first day of the submergence period for variety O. sativa japonica.
[1]
..................................................................
(ii)
Outline the difference in mRNA production for the three genes during the submergence period for variety O. sativa indica.
[2]
..................................................................
..................................................................
..................................................................
Campbell, Neil A., Jane B. Reese, Martha R. Taylor, Eric J. Simon. Biology 105 Taken From; Biology: Concepts & Connections (Fifth Edition) Benjamin Cumming, San Francisco, CA, 2013.
6. Describe several adaptations that enable plants to reduce water loss from their leaves. Include both structural and physiological adaptations.
1. How much obedience and loyalty does an agent employee owe to an employer? What if the employer engages in an activity—or requests that the employee engage in an activity—that violates the employee’s ethical standards but does not violate any public policy or law? In such a situation, does an employee’s duty to abide by her or his own ethical standards override the employee’s duty of loyalty to the employer?
K. Paraphrase the three potential fates of the excited electron produced when a photon meets a chlorophyll molecule
two major tribes were the Ostrogoth’s and the Lombard’s where power shifted several times, And the
The purpose of this paper is to analyze the movie called “Steel Magnolias” (1989) directed by Herbert Ross.
Wischusen, William, Jolissaint, Ann, Reiland, Jane, and Pomarico, Steven. 2012. Biology 1208/1209: Biological Laboratories for Science Majors. Hayden McNeil, Plymouth,
Two numbers have a sum of 20. The sum of their squares is a minimum. Write the two equations required to solve this system of equations.
COSHH files with guidelines and instructions on how to dispose of any kept substances that are hazardous to health can be found within each of your care services. Clinical yellow bags, must be labelled and sealed correctly then placed in the bin area where they are collected by a contractor on a weekly basis. Used sharps such as needles should be placed in a yellow sharps bin provided by your local doctors, hospital or pharmacy and returned to these places when full so they can be disposed of correctly. Out of date or refused medication should be recorded within your service and then collected by a contractor who then returns to the pharmacy for disposal.
So we start of with x^2-4x+y^2+8y=-4 you would then take 1/2 of -4 and square it, then take 1/2 of 8 and square it. You would then get x^2-4x+4-4+(y^2+8y+16-16=-4. After all of these steps you would factor the square, x-2^2-4+y+42-16=-4, x-2^2+y+4^2-20=-4. Then you would add 20 to both sides, x-)^2+y+4^2=16
If necessary, use the back of the exam pages for the rest of your answers. Do not use other sheets of paper. Please write legibly; if I cannot read your answer, I will count it wrong.
Rotated the right hand side of the throttle gently and slowly removed the feet to the foot rest.
According to Charles Zastrow, back on history it was difficult to meet the needs of people with cognitive disability. Furthermore, people with mental illness were seen as they were possess by the demons in which people use exorcism to cure the illness. The lack of knowledge people used cruel punishment to cure people with mental health problems. In 1601 the Poor Law give financial support to poor people who were unemployed but also those with disability. These was the first attempt to help people with disability. Zastrow claims that, during the 19th century the first program to help people with disability was develop in United States. The rehabilitative services provided for persons with mental and physical problems are “vocational evaluation,
At the time of the Spanish American War the United States went from relative isolation to increased global involvement because of 1. The spirit of the American people captured by the idea of the frontier and, 2. The belief it was the duty of America to maintain peace of all nations. The consequences of this increased global involvement on American Society was 3. The clashing views of the imperialist and anti-imperialist parties.