Polygenic trait Pleiotropic condition 1:1:1:1 9:3:3:1 Expressivity = III = Digenic Mendelian ratio in the offspring when a heterozygote is test crossed. A single trait that is coded for by multiple genes. The degree to which a condition shows up in a population as a result of P = E + G Digenic Mendelian ratio in the offspring when two heterozygotes are mated. A single gene that can affect multiple traits.

Polygenic trait Pleiotropic condition 1:1:1:1 9:3:3:1 Expressivity = III = Digenic Mendelian ratio in the offspring when a heterozygote is test crossed. A single trait that is coded for by multiple genes. The degree to which a condition shows up in a population as a result of P = E + G Digenic Mendelian ratio in the offspring when two heterozygotes are mated. A single gene that can affect multiple traits.

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Description: Polygenic traitPleiotropic condition1:1:1:19:3:3:1ExpressivityIIIIIIIIIIIIDigenic Mendelian ratio in the offspring when aheterozygote is test crossed.A single trait that is coded for by multiple genes.The degree to which a condition shows up in apop

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter4: Pedigree Analysis In Human Genetics

Section: Chapter Questions

Problem 22QP: Analysis of X-Linked Dominant and Recessive Traits In the eighteenth century, a young boy with a...

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ABO blood type is determined by three alleles: *, 18, and i. On a separate chromosome, anotherset of alleles determines the Rhesus factor: D and d.A woman with blood type A, who is heterozygous for both blood type and Rhesus factor, had achild with a man with blood type B, who is heterozygous for both blood type and Rhesus factor. What is the percentage chance that this child is blood type B and heterozygous for both traits? Record your answer as a percentage rounded to one decimal place.
While sitting at home during Movement Control Order (MCO) because of pandemic covid19, observe two different traits of a couple in your family (eg. your mom & dad or your sister & her husband or your brother & his wife, etc). Draw a genetic cross that involves cross of the parents with the chosen 2 pairs of their contracting traits. Imagine that the cross obeys the Mendelian Laws, show the cross and gametes production for each generation (P, F1 and F2). By Using a Punnet square as symbolic representation of the results for the cross, determine the phenotypes, genotypes, phenotypic ratio and genotypic ratio of F2 generation in the family.
n corn, male sterility is controlled by maternal cytoplasmic elements. This phenotype renders the male part of the corn plants (i.e the tassel) unable to produce fertile pollen; the female parts, however, remain receptive to pollination by pollen from male fertile corn plants. However, the presence of a nuclear fertility restorer gene F restores fertility to male sterile lines sing the cardboard chips, simulate the crosses indicated below. Give the genotypes and phenotypes of the offsprings in each cross, and properly label the nucleus and the cytoplasm of each individual in the cross Legend male sterile cytoplasm Male fertile cytoplasm FF nucleus Ff nucleus ff nucleus A. Male sterile female x FF male Explain the phenotype of the offspring B. Male sterile female x Ff male Explain the phenotype of the offspring
Which of the pedigree diagrams below is most likely to show a family with X-linked agammaglobulinemia? A KEY. C Horygon Hamocyga Hezexygess Hey Wild Type fursale Mek Parmak Mais Note: Completely red symbol denotes an individual exhibiting the phenotype of interest H INV V 1/4 1/2 1/2 1.0. 1/2 1/2 1/4 Typ female 1/2 B Affected Known carrier Normal Moral D O To
What is the diploid genotype after mating these two strains? Parent 1: MATα msh6Δ::kanMX leu2-3,112 ura3-1 trp1-1 his3-11,15 + pRS415 (msh6- K337T and LEU2 gene) Parent 2: Mata his3∆ leu2∆ lys2∆ ura3∆ TRP1 MSH6
Unaffected father Camier mother XY Unaffected Afected Carrier Unaffeded Unaffected daugkter U.S. National Lbrany of Mediche Carrier Affected son daughter son In humans, as well as in many other animals and some plants, the sex of the individual is determined by sex chromosomes. The sex chromosomes are one pair of non-homologous chromosomes: XX represents a female, while XY represents a male. When a gene for a specific trait is attached to the X or Y chromosome, we say it is sex-linked, and when it is attached to the X chromosome, we say it is X-linked. Alleles for these linked traits, such as hemophilia or color blindness, crosses, may be recessive or dominant. Hemophilia is an X-linked, recessive trait. The recessive allele for hemophilia is actually a mutated version of the normal alllele but it can still be passed on through generations. Imagine a female is a carrier for hemophilia; her genotype is Xx She is married to a man who does not have hemophilia. What conclusion is NOT valid…
The maternal-effect mutation bicoid (bcd) is recessive. Inthe absence of the bicoid protein product, embryogenesis isnot completed. Consider a cross between a female heterozygousfor the bicoid mutation (bcd+/ bcd-) and a homozygousmale(bcd-/ bcd-). Predict the outcome (normal vs. failed embryogenesis) inthe F1 and F2 generations of the cross described.
y 301 Amelogenesis imperfecta is X-linked dominant. Affected XY individuals have extremely thin enamel on the teeth while XX carriers have grooved teeth from uneven deposition of enamel. If an unaffected XY individual were to produce children with a XX carrier partner, a. what would be the expected chance of a XY child being affected with the disease? b. what would be the expected chance of a XY child being affected with the disease?
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In 1952, an article in the British Medical Journalreported interesting differences in the behavior ofblood plasma obtained from several people who suffered from X-linked recessive hemophilia. Whenmixed together, the cell-free blood plasma from certain combinations of individuals could form clots inthe test tube. For example, the following table showswhether clots could form (+) or not (−) in variouscombinations of plasma from four people withhemophilia:1 and 1 − 2 and 3 +1 and 2 − 2 and 4 +1 and 3 + 3 and 3 −1 and 4 + 3 and 4 −2 and 2 − 4 and 4 −What do these data tell you about the inheritance ofhemophilia in these individuals? Do these data allowyou to exclude any models for the biochemical pathway governing blood clotting?
- 1 attachment If these two individuals with the following genotypes are crossed Parent 1: AAbbCCDDeeFf Parent 2: aaBBccddEEFf What is the expected genotypic ratio of the F, generation? (3 pts) A. ¼ AaBbCcDdEeFf: ½ AaBbCcDdEeFF: ¼ AaBbCcDdEeff B. ½ AaBbCcDdEeFf: ½ AaBbCcDdEeff C. 1 AaBbCcDdEeFF: 1 AaBbCcDdEeFf: 1 AaBbCcDdEeff D. 4 AaBbCcDdEeFF: ½ AaBbCcDdEeFf: 4 AaBbCcDdEeff
of der(X) der(22) 22 der(X) 22 der(X) 22 First row is mother, second row is first daughter, third row is second daughter. Phenotype in first daughter was much more severe than second daughter. Give best explanation: O Inactivation in second daughter spread to the extra chromosome 22 segment O Having 45 chromosomes always gives a more severe phenotype than 46 chromosomes Pattern of inactivation in other tissues, including brain might differ, giving functional 22q monosomy O The presence of the third X in the second daughter decreases effect of genetic abnormality O irst daughter has a Turner-like syndrome, which explains severity --------- ---------- ---------- ------------ ---------. ------------- ------------ OO ix