100 percent 4. A pedigree CANNOT be used to a. determine whether a trait is inherited. b. show how a trait is passed from one generation to the next. c. determine whether an allele is dominant or recessive. d. none of the above 5. A person who has PKU a. inherited the allele for the trait from one parent. b. inherited the allele for the trait from both parents. c. is heterozygous for the trait. d. will not pass the allele for the trait to his or her offspring. 6. Which of the following genotypes
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The essential amino acid phenylalanine‚ with the molecular formula C9H11NO2‚ is abbreviated in the 3 letter form as Phe‚ or the single letter F‚ and is classified as a nonpolar amino acid due to the hydrophobic nature of the benzyl side chain (UPAC-IUBMB Joint Commission on Biochemical Nomenclature‚ 1983). The presence of the benzene ring determines that phenylalanine is an aromatic amino acid. Phenylalanine‚ being an essential amino acid‚ is needed by the body for many necessary biological functions
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the IQ of affected individuals. | | | | D. | is a common X-linked dominant disorder. | | | | | Score: | 0.1/0.1 | | | 7. | Quest#7 | | Which of the following enzymes is deficient in humans suffering from phenylketouria (PKU)? | | | Student Response | Value | Correct Answer | Feedback | A. | Cystathionine synthase. | | | | B. | Tyrosinase. | | | | C. | Branched chain alpha-ketoacid dehydrogenase. | | | | D. | Phenylalanine hydroxylase. |
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In biology‚ term- mutation has been described as changes to the base pair sequence of the genetic material of an organism. Mutations can be caused by: copying errors in the genetic material during cell division‚ by exposure to ultraviolet or ionizing radiation‚ chemical mutagens‚ or viruses‚ or can occur deliberately under cellular control during processes such as hypermutation. In multicellular organisms‚ mutations can be subdivided into germ line mutations‚ which can be passed on to descendants
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The Five Adaptationist Programmes The spandrels of San Marco and Panglossioan paradigm: a critique of the adaptationist programme‚ a paper by S.J. Gould and R.C. Lewontin‚ portrays five of the alternative adaptationist programmes which are the most common view of evolutionary reasoning to date. The first adaptationist programme Gould mentions in the paper is a population that does not undergo selection or adaptation. In this type of population it is possible for the alleles to differentiate
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MENTAL RETARDATION Mental Retardation is a major health‚ social and economic problem to the entire nation. Unfortunately‚ it has been cloaked in an aura of myth and stigma that reflect a lack of knowledge and understanding. The primary purpose of this study was to contact an empirical survey identifying the current status of public knowledge about mental retardation. Concomitant objectives were (a) to elicit what attitudes the public has toward mental retardation‚ and (b) to identify and relate
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Healthy Newborn Submitted by Ngassa‚ Gratino (gngassa) on 5/15/2013 11:14:57 AM Points Awarded | 1.00 | Points Missed | 22.00 | Percentage | 4.3% | Infant Care at Birth The nursery RN places the infant under a radiant warmer and starts to dry her quickly. 1. What is the rationale for these actions? A) Heat production is increased through stimulation. INCORRECT Drying the infant may increase heat production‚ but this is not the best method to correct the newborn’s body temperature. B) Convective
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infant’s foot‚ and tests are run on that blood to detect genetic disorders or various other metabolic or endocrine conditions. Originally when these tests on newborns began in the early 1960’s‚ a single test was performed to identify phenylketonuria (PKU) that has an incidence of 1:20‚000-25‚000 infants. Whereby if the infant is positive for this test‚ the breakdown of amino acid is absent causing the protein to build up
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are: · Genetic conditions. Sometimes mental retardation is caused by abnormal genes inherited from parents‚ errors when genes combine‚ or other reasons. Examples of genetic conditions are Down syndrome‚ fragile X syndrome‚ and phenylketonuria (PKU).In the rarest of cases‚ abnormalities with the X or Y chromosome may also cause disability. 48‚ XXXX and 49‚ XXXXX syndrome affect a small number of girls worldwide‚ while boys may be affected by 47‚ XYY‚ 49‚ XXXXY‚ or 49‚ XYYYY. · Problems during
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I. Genes a. Definition Segments of DNA molecules A nucleotide sequence b. Functions Control of hereditary traits Sequence coding for a polypeptide which maybe an enzyme‚ or a part of an enzyme‚ which in turn is responsible for a certain phenotype or trait. c. The Human Karyotype Ordered arrangement of chromosomes arranged in homologous pairs The chromosome complement of a cell or organism characterized by the number‚ size and morphological features of each chromosome II
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