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
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ebony body fly it will produce an offspring with a normal body colour (not ebony) because the wild type is the more dominant gene. Of course though‚ these traits are all carried within the sex chromosomes of the flies. In sex linked inheritance‚ alleles on
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for the production of cellular pigment. Albinism is a form of hypopigmentary congenital disorder‚ characterized by a partial hypomelanism or total lack of melanin pigment in the eyes‚ skin‚ and hair. Albinism results from inheritance of recessive alleles. Also another term used for albinism is an albino. Albinism is hereditary; it is not an infectious disease and cannot be transmitted through contact blood transfusions or other rectors. Many types of albinism exist‚ all of which involve lack of pigment
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What are the possible genotypes for each? What are the possible gametes that can be produced by each? Because Mary’s phenotype expression is dominant it is possible for Mary to have several variations of genotypes which would possess the dominant allele which could be either homozygous or heterozygous whereas John’s recessive phenotype could only be present through a homozygous recessive genotype. The possible genotypes for Mary would include the homozygous dominant (NN) or a heterozygous (Nn) while
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Ball | Height of rebound | Coefficent | Golf Ball-Floorboards | 50cm | 0.50 | Baseball-Floorboards | 20cm | 0.20 | Netball-Floorboards | 80cm | 0.80 | Basketball-Floorboards | 85cm | 0.85 | Volleyball-Floorboards | 85cm | 0.85 | Baseball-Turf | 25cm | 0.25 | Soccer Ball-Turf | 75cm | 0.75 | Basketball-Turf | 85cm | 0.85 | Golf Ball-Turf | 5cm | 0.05 | Basketball-Carpet | 70cm | 0.70 | Netball-Carpet | 75cm | 0.75 | Baseball-Carpet | 25cm | 0.25 | Golf Ball-Carpet | 20cm
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gender. Bloom’s Syndrome is a rare genetic disease known for affecting someone’s physical and genetic traits‚ this disorder can cause problems for whoever is diagnosed with it. Bloom’s Syndrome is a disease characterized by how its identified‚ its frequency‚ how it was discovered‚ its symptoms‚ and its treatments. Bloom’s Syndrome is identified as an autosomal disorder. An autosomal disorder is when the defected gene is carried on a chromosome other than one of the sex chromosomes. Bloom’s Syndrome
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= 3. a_1 = 2.3 y = a_1*np.sin(2.*np.pi*time*f_1) plt.plot(time‚y) plt.xlabel("Time t [s]") plt.ylabel("Wave") plt.title("Wave Signal") plt.show() n = time.shape[-1] transform = (fft(y)[:n/2]) * 2./n frequency = fftfreq(n‚time[1]-time[0])[:n/2] plt.plot(frequency‚np.abs(transform)) plt.xlabel("Frequency f [Hz]") plt.ylabel("Amplitude") plt.title("Fourier Transform") Input: Output: (code): import numpy as np import matplotlib.pyplot as plt from scipy.fftpack import fft‚fftfreq
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the oscillating up and down the length of the source (antenna). The current is this created in the antenna. •Adjust the transmitter on the simulator so that it is in the sinusoidal mode and the electrons are oscillating up and down at a regular frequency. Ensure the “display the curve” and the “radiated field” boxes are checked. What does the
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producing sounds of different frequencies which were used to vibrate a mirror. A beam of light was then reflected from the mirror to produce trace patterns which were dependent on the frequencies. This setup used by Lissajous is similar to what is used today to project laser light shows. Today‚ Lissajous figures are generated with an oscilloscope‚ a type of cathode ray tube that provides a picture of electric signals in the form of a graph. Before digital frequency meters and phase-locked loops
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microprocessors to generate a clock at high frequency (Fout=2GHz for example) from an external clock at low frequency (Fref = 100MHz for example). The PLL is also used as a clock recovery circuit to generate a clock signal from a series of bits transmitted in serial without synchronization clock (Figure below). The PLL may also be found in frequency demodulation circuits‚ to transform a frequency varying waveform into a voltage. The PLL uses a high frequency oscillator with varying speed‚ a counter
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