polypeptide determines secondary and tertiary structure. A) True B) FalseAssuming that chemical conditions in the surrounding environment remain constant‚ THEN the sequence of amino acids will determine how components of the amino acid backbones form hydrogen bonds‚ and how the side chains/R-groups interact chemically. THUS‚ the statement is true.6.Which kind (or kinds) of chemical interactions produces the tertiary structure of a polypeptide? A) Hydrogen bonds among the side chains (R-groups)
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1960s[->1] as a sleeping aid and given to pregnant women to combat morning sickness[->2] and other symptoms. It was made in West Germany[->3] in 1953[->4]. It was available in around 50 countries‚ although not in the United States[->5]‚ under at least 40 different names. 5 It was later (1960–61) found to cause severe physical abnormalities in the unborn child (foetus). These abnormalities were such things as no arms‚ no legs or very disfigured limbs. Around 15‚000 foetuses were damaged by thalidomide
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1. Outline the process of DNA profiling (genetic fingerprinting)‚ including ways in which it can be used. 6 marks • sample of DNA obtained / leucocytes / from mouthwash / hair / other named source • satellite DNA / repetitive sequences used for profiling • amplification of DNA by polymerase chain reaction / PCR • cutting DNA into fragments using restriction enzymes • separation of fragments of DNA (by electrophoresis) • separation according to the length of the fragments • pattern of
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Campbell’s AP Biology Notes Chapter 48: Nervous Systems Command and Control Center * The human brain contains an estimated 100 billion nerve cells‚ or neurons * Each neuron my communicate with thousands of other neurons * Functional magnetic resonance imaging (fMRI) is a technology that can reconstruct a 3-D map of brain activity * The results of brain imaging and other research methods reveal that groups of neurons function in specialized circuits dedicated to different tasks
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IB Home Standard Level Higher Level Options Additional Resources 8.2 Photosynthesis 8.2.1 Draw and label a diagram showing the structure of a chloroplast as seen in an electron micrograph 2D Representation 3D Representation Electron Micrograph 8.2.2 State that photosynthesis consists of the light-dependent and light-independent reactions Photosynthesis is a two-step process: 1. The light dependent reactions convert the light energy into chemical energy 2. The light
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32.2.2 Segmentation allowed for redundant systems and improved locomotion Hox genes cause segmentation development 2 advantage of Hox genes Highly segmented animals‚ usually have nearly complete set of organs in theirs each segment of body. This result to less damage in their body‚ since other segment duplicate the damage segment functions Locomotion is more efficient‚ since partitions isolate the segment can contract and expand autonomously. 32.3. The Classification of Animals Animals divided
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a flowing manner. • Iago shows the audience his intentions when he states that he has no loyalty to Othello: “I follow him to serve my turn upon him.” (Act 1‚ Scene 1). This shows that Iago has been plotting Othello’s downfall for quite some time. 5. STEP TWO: STRUCTURE OF
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vertebrate system that is responsible for immunity. Their main function in the body is the production of antibodies that help to fight bacteria and other disease-carrying agents. 4. The cardiovascular system Transports wastes and hormones 5. Anemia Tissues do not get enough oxygen 6. Heart attack A heart attack occurs when blood flow to a part of your heart is blocked for a long enough time that part of the heart muscle is damaged or dies. The medical term for this is myocardial
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There are many differences between photosynthesis and cellular respiration. Photosynthesis requires energy as photons. Cellular respiration supplies energy in the form of ATP. In photosynthesis‚ electron transport occurs in the membranes of chloroplasts or thylakoid discs. Cellular respiration takes place in the membranes of mitochondria. In photosynthesis‚ water breaks down to supply 2 electrons and 2 Hydrogen ions and release ½ O at the beginning of the chain. In cellular respiration‚ 2 electrons
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Page # 3 Thursday 09/05/13 1.1 Notes on Biology The Science of Biology -Biology is the study of living things *Cannot live in isolation -Biologists study the diversity of life *Interactions within environments *Problems and Solutions *Biologists ask “Why?” and perform a scientific experimentation. -Characteristics of living things *Have an orderly cell structure *Produce offspring *Grow and Develop *Adapt to changes in environment. -Living
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