Matthew Lee Bio 10 - Study Guide 2 CELLULAR DIVISION * What is a chromosome‚ chromatid‚ chromatin?chromosome is a thread like structure of nucleic acids holding information. Chromatin super coil material part of strand. Chromatid is one strand of the chromatin. * How do they change after S phase? Makes 2 chromatids * What are the stages of interphase? What happens in each stage?G1-cell growth‚S phase-Synthesis‚G2 prepare for division * What are the stages of mitosis? What happens
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CHAPTER 12 -1406 CHAPTER 8- 1408 MITOSIS 1. Define: genome‚ gene‚ chromosomes‚ chromatin‚ binary fission‚ homologous chromosomes‚ sister chromatids‚ daughter chromosomes‚ somatic cells‚ gametes‚ centromere‚ kinetochore‚ karyokinesis‚ spindle fibers‚ kinetochore microtubules‚ nonkinetochore microbules‚ centrosome‚ asters 2. List differences between eukaryotic and prokaryotic genome. 3. A chromosome consists of ____ (60%) and ____ (40%). 4. Describe the phases of the cell
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Genes and Genetic Disorders PSY 104 October 29‚ 2011 Genes and Genetic Disorders When answering the question‚ “How does a child develop?” it is impossible to determine each individual influence that decides who a child becomes (Hamosh‚ Scott‚ Amberger‚ Bocchini‚ & McKusick‚ 2005). What can be determined are the most obvious influences‚ which are genetics‚ parenting‚ experiences‚ friends‚ and family relationships. These factors play the biggest roles in a child’s development‚ and can
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Chapter 15 The chromosomal basis of inheritance Key ideas: 1) Mendelian Inheritance has its physical basis in the behavior of chromosomes during sexual life-cycle. 2) Morgan traced a gene to a specific chromosome. 3) Linked genes tend to be inherited together because they are located on the same gene. 4) Independent assortment of chromosomes and crossing over produce genetic recombinants. 5) Geneticists use recombination data to map a chromosome’s genetic locus. 1900 Biology finally
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EXAM1 Q1. How many chromosomes are in a typical red blood cell taken from a normal person? Zero Q2. The degree to which a trait is expressed in individuals is the expressivity of the trait. Q3. In pedigrees‚ a male individual is symbolized as a square. Q4. The chromosomal structure that anchors the spindle fiber to the chromosome is centromere. Q5. The short arm of a submetacentric chromosome is symbolized as the p arm. Q6. Genetic diseases transmitted only by a mother to both sons and daughters
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Africa. Spencer Wells quest to find the genetic marker to link ancestors over 60‚000 years ago is done by taking blood samples from hundreds of men on the migration route. Women were not sampled because the X chromosome evolves‚ thus only the Y chromosome could be used. I was astonished by the process used to retrieve DNA from blood that Wells shows the viewers. In the hundreds of samples of blood taken‚ Spencer Wells scouts for a certain feature in a DNA strand and finds
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Chromosomal Disorder: (Turner Syndrome) Introduction Turner Syndrome is a condition that only alters the development of girls and women. Most girls and women have two full and complete X chromosomes while girls with turner syndrome have only part of the second X chromosome. Women and girls are diagnosed with turner syndrome have features such as slow growth rates‚ a webbed neck‚ broad shoulders‚ and widely spaced nipples. They also have swelling hands and feet‚ heart defects‚ kidney problems‚ and
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23 chromosomes from the mother and 23 from father; each cell in the human body (Except gametes) contains 46 chromosomes arranged into 23 x and 23 y‚ which determine the sex of a person. On the 23rd pair of chromosomes‚ Males have an XY and females have an XX. Sickle cell anaemia is an autosomal recessive disease‚ which is inherited when both parents carry the
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------------------------------------------------- COL1A2 7q21.3 ------------------------------------------------- Footnotes ------------------------------------------------- * Location of the gene on the chromosome -------------------------------------------------
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Describe and evaluate the biological explanation of gender development. Give evidence in your answer. (10 marks) The biological approach states that human beings have evolved so that males and females possess different chromosomes that trigger the production of different levels of certain hormones. It is these hormonal differences between the sexes that lead to differences in behaviour. This allows for males and females to perform different roles in reproduction thus ensuring the survival of
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