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Patterns of Heredity Review

Patterns of Heredity Review. What mode of inheritance shows a blending of a trait?. Incomplete dominance. What is the sex of this individual?. Female. Who determines the sex of a child? . Father. Identify the disorder. Turner’s Syndrome. G.

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Patterns of Heredity Review

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  1. Patterns of Heredity Review

  2. What mode of inheritance shows a blending of a trait? Incomplete dominance

  3. What is the sex of this individual? • Female

  4. Who determines the sex of a child? Father

  5. Identify the disorder. • Turner’s Syndrome G

  6. What did Gregor Mendel use to conduct his experiment? Gardenpeas

  7. List 2 environmental (external) factors that can influence gene expression? • Temperature • Radiation • Light • Chemicals • Virus/Bacteria

  8. Why do sex-linked traits occur more often in males than females? • Males are missing the part of the Y chromosomes that has these traits

  9. ______ is anything that can cause a mutation Mutagen

  10. What is an example of a sex-link trait? • Hemophilia • Color-blindness • Baldness

  11. __________ inheritance is where more then ONE gene is controlling a trait Polygenic inheritance

  12. In a pedigree, how is death notated? • A slash through the symbol

  13. The following pedigree shows individuals with blue eyes. Blue eyes are recessive to brown. What is the dad’s genotype? I. • Bb II.

  14. _____ is an abnormal number of chromosomes Aneuploidy

  15. Body chromosomes; pairs 1-22 are called _____ Autosomes

  16. _____ is the failure of the homologous chromosomes to separate during meiosis Nondisjunction

  17. _____ is a chart where the chromosomes are arranged in their homologous pairs Karyotype

  18. What would be an internal factor that can influence gene expression? Hormones

  19. An individual with the genotype IAifor their blood type would have what blood type? A blood type

  20. In a karyotype, chromosomes are matched according to ________, _______, and_____ • Size, • Banding Patterns, • Centromere location

  21. How many autosomal chromosomes are present? • 44

  22. The following pedigree shows individuals with blue eyes. Blue eyes are recessive to brown. What is the sex of their oldest kid? I. • boy II.

  23. _____ is a mutation that occurs when a segment of a chromosome breaks off and is reinserted backwards Inversion

  24. ____ mutation causes an error in DNA that adds or deletes a single base that causes all the following amino acids to be affected Frameshift mutation

  25. What trait is an example of multiple alleles? BloodTypes

  26. How many chromosomes does a human that has Trisomy 21 have? 47

  27. A normal male karyotype would contain ____ as the sex chromosomes. XY

  28. Mutation that occurs when one chromosome of a pair is missing is called _____ Monosomy

  29. Give an example of a genotype that would represent a carrier female XBXb

  30. When a chromosome breaks off & joins another chromosome, this mutation is called_____ Translocation

  31. What type of inheritance has the phenotype of the heterozygous offspring showing BOTH traits of the homozygous parents? Codominance

  32. What type of inheritance is shown when the trait occurs more frequently in one sex than another? Sex-Linked

  33. Suppose you were looking at a pedigree and you saw an individual’s genotype was labeled “R?”. What does that genotype represent? Dominant phenotype. But, you do not know if the other allele is dominant or recessive

  34. What type of inheritance is exhibited when there are more than 2 possible alleles for a certain trait or phenotype? Multiplealleles

  35. A mother who is heterozygous for type A blood marries a man who is homozygous for B blood. What are the blood genotypes of the children? • 50% IAIB • 50% IBi

  36. In pedigrees, how are males and females represented? Males – squares Females - circles

  37. What type of inheritance pattern would you use a prime (‘) to notate the alternate form of an allele? Incomplete dominance

  38. What do the roman numerals represent that are labeled on a pedigree? Generation numbers

  39. How many autosomes does a human have? 44 or 22 pairs

  40. A normal female karyotype would contain ____ as the sex chromosomes. XX

  41. The following pedigree shows individuals with blue eyes. Blue eyes are recessive to brown. What is the mom’s genotype? I. • bb II.

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