Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Describe how nondisjunction results in aneuploidy disorders, and describe the syndrome/ symptoms/ physical characteristics associated with: A) Trisomy 21, and B) your choice of the sex chromosomes (choose from X-, XXX, XXY, or XYY).
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- For the following chromosome complements, what is the phenotypic sex of a person who has Q. XY with the SRY gene deleted?arrow_forwardWhich of the following conditions is not the result of a chromosomal alteration? ○ Chronic myelogenous leukemia (CML) ◇ Down syndrome (Trisomy 21) Turner syndrome O Mosaicismarrow_forwardbriefly describe how chromosomal disorders happen, explaining non disjunctionarrow_forward
- Nondisjunction which can affect sex chromosomes as well as autosomal chromosomes as a common cause of genetic disorders. Use the space provided to illustrate the process of nondisjunction with the end result being that one cell exhibits in the monopsony me while other one exhibits trisomy. Hint: a sperm will fertilize the egg and add it’s chromosome in the last step)arrow_forwarddiscuss briefly The genetics of triploidyarrow_forwardHemophilia, disease in which the blood lacks a clotting factor, is caused by an X linked recessive gene. Joe doe not have hemophilia and Lucille is heterozygous for the condition. What is the chance that their MALE child will have hemophilia? (Note: you are calculating the probability for their MALE children only, in other words if they have 1 male child, what is the probability that he will be born with the disease?) 0% 1/4 or 25% 2/4 or 50% 3/4 or 75% 4/4 or 100%arrow_forward
- Compare types of chromosomal abnormalities: numerical vs structural.arrow_forwardA. Please explain the key differences between each of the following pairs of terms. (i) Haploid vs. monoploid (ii) Pericentric inversion vs. paracentric inversion (Please include a simple diagram, along with your written explanation.) (iii) Homologous chromosomes vs. homeologous chromosomes:arrow_forwardAnalyze the karyotype shown. Indicate if it is a chromosomal male or achromosomal female. If the karyotype is normal, write the word normal under name or description. If the karyotype is abnormal, name or describethe disorder.arrow_forward
- Analyze the karyotype shown. Indicate if it is a chromosomal male or achromosomal female. If the karyotype is normal, write the word normal under name or description. If the karyotype is abnormal, name or describethe disorder.arrow_forwardidentify two main themes underlying the phenomena of chromosomal changes?arrow_forwardWhat is a crossing over, and what is the purpose of it?arrow_forward
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