The effect of mutations on living organisms Mutations occur when there is a change in the base sequence on the DNA strand. Most mutations have absolutely no effect due to them occurring in the introns‚ or the “junk DNA”. However some mutations occur on the exons‚ and these are the ones that can be potentially harmful to the organism‚ although in some exceptional cases random mutations can be beneficial‚ and pressured mutations are almost always beneficial to the survival of a species. Harmful
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spreading‚ blood clot and scar tissue can start to form in front of the retina‚ which prevents light from hitting the retina‚ causing blindness. If the fluid is released it can cause swelling which leads to blurred vision. There is no treatment when this occurs ‚but the prevention of the build up of glucose surrounding the blood vessels in the eye and the
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Theoretical background Upper course The source of the river is normally found in an area of high ground. The river usually flows through a steep V-shaped valley. Most of the erosion that occurs in the upper course is vertical and as the river bed is eroded lower the valley becomes steeper. The river is narrow with a shallow channel. As discharge is calculated by measuring the cross sectional area of the channel multiplied by the velocity‚ the discharge is small. The river is mainly slow flowing
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mitotic phase in which it occurs The nuclear membrane breaks down during _______________________. Chromosomes have reached the equator of the cell during _______________________. The connection between the sisters breaks during _______________________. Chromatin condenses into visible chromosomes during _______________________. Sister chromatids are pulled away from each other during _______________________. Chromosomes disperse
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The inner membrane is the place where many chemical reactions occur. Between the inner and outer membranes‚
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the surface of the clear liquid as well. * -Coagulation 65. Describe the physical change that occurs during lactose fermentation. Name one microbe capable of producing this reaction. * Lactose Fermentation involves the initial breakdown of lactose to glucose and the subsequent fermentation of glucose to produce an acid end product. 66. Describe the physical change that occurs during an alkaline reaction. Name one microbe that would produce this response. * This change to
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PERSPECTIVE ON AGING Theoretical Perspective on Aging Rachael Porchia HCS/548 September 3‚ 2012 Deborah Ayers Theoretical Perspective on Aging The study of aging has not been around long. Aging is natural‚ and occurs during an individual’s lifetime. Essentially‚ no one can escape the aging process many individuals 60 and over are in good health‚ and hold his or her independence status. However‚ some individuals over 60 experiences medical issues‚ and may need
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Asynctilism vertex malpresentation Fetal head presenting at a different angle than expected 2. Brow presentation Rare Occurs in multiparty Woman with relaxed abdominal muscles Results in obstructed labor CS is necessary Infant can have extreme ecchymotic bruising in the face Reassure parents that child is well after birth. 3. Face presentation Rare Occurs‚ the head diameter the fetus presents to the pelvis is often too large for birth to proceed Head that feels more apparent than
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word rhymes to a word from a different line. 11. What do you call the central idea of the poem? 12. What kind of rhyme is it when a word inside a line rhymes with another word on the same line? 13. What do you call the pattern in which end rhyme occurs? 14-20. What are the 7 kinds of stanzas? (In order) (Write the name and the corresponding number of lines) 1. In poetry‚ what do you call a group of lines? 2. What element requires the use of senses? 3. What type of poem requires a 5-7-5 syllable
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the earth’s lithosphere and its inhabitants. Earthquakes occur both on land and sea.They may occur at areas where plates collide (subduction zones/ convergent plate margins) ; where plates slide past eachother along fault lines (transform plate margins) or due to volcanic eruption. Earthquakes may be of three different categories: * Tectonic – movement in the earth’s crust due to sudden movement along fault lines. * Plutonic - occurs deep within the subduction zone of colliding plates.
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