All wrong please answer again Arabidopsis thaliana is a diploid plant model organism with 2n = 10. Please select the number options to match the following:pairs of homologous chromosomes an Arabidopsis thaliana1.leaf cell containsnumber of chromosomes an Arabidopsis thalianagamete cell contains1. two2. fivenumber of copies of each gene an Arabidopsis thaliana2 leaf cell has3. tennumber of chromosomes an Arabidopsis thaliana leaf cell2 contains

Arabidopsis thaliana is a very important organism in plant research. There are many advantages of…

Arabidopsis thaliana is a diploid plant model organism with 2n = 10. Please select the number options to match the following: pairs of homologous chromosomes an Arabidopsis thaliana leaf cell contains number of chromosomes an Arabidopsis thaliana 3 gamete cell contains 1. two 2. five number of copies of each gene an Arabidopsis thaliana _2 leaf cell has 3. ten number of chromosomes an Arabidopsis thaliana leaf cell contains

Arabidopsis thaliana is a diploid plant model organism with 2n = 10. Please select the number options to match the following: pairs of homologous chromosomes an Arabidopsis thaliana leaf cell contains number of chromosomes an Arabidopsis thaliana 3 gamete cell contains 1. two 2. five number of copies of each gene an Arabidopsis thaliana _2 leaf cell has 3. ten number of chromosomes an Arabidopsis thaliana leaf cell contains

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter8: Patterns Of Inheritance

Section: Chapter Questions

Problem 2ACQ: Figure 8.10 In pea plants, purple flowers (P) are dominant to white (p), and yellow peas (Y) are...

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A woman who sought genetic counseling is found to be heterozygousfor a chromosomal rearrangement between the second andthird chromosomes. Her chromosomes, compared to those in anormal karyotype, are diagrammed on the next page:(a) What kind of chromosomal aberration is shown? (b) Using a drawing, demonstrate how these chromosomeswould pair during meiosis. Be sure to label the differentsegments of the chromosomes.(c) This woman is phenotypically normal. Does thissurprise you? Why or why not? Under what circumstancesmight you expect a phenotypic effect of such arearrangement? The woman in above problem has had two miscarriages. Shehas come to you, an established genetic counselor, with thesequestions:(a) Is there a genetic explanation of her frequent miscarriages?
A woman who sought genetic counseling is found to be heterozygousfor a chromosomal rearrangement between the second andthird chromosomes. Her chromosomes, compared to those in anormal karyotype, are diagrammed on the next page:(a) What kind of chromosomal aberration is shown? (b) Using a drawing, demonstrate how these chromosomeswould pair during meiosis. Be sure to label the differentsegments of the chromosomes.(c) This woman is phenotypically normal. Does thissurprise you? Why or why not? Under what circumstancesmight you expect a phenotypic effect of such arearrangement? The woman in above problem has had two miscarriages. Shehas come to you, an established genetic counselor, with thesequestions:(a) If not, what is the chance that she could have a normalchild? Provide an informed response to her concerns
three recessive genes a, b, and c in the model plant Arabidopsis are found to be linked on chromosome 4. A three point test cross is done with a homozygous recessive plant with a heterozygous for all three genes. Following is the number of progenies a b C 65 A B c 56 A B C 1267 a b c 1310 A b C 550 a B c 515 a B C 470 A b c 489 Total = 4,722 Determine the middle locus by your choice of method and after that calculate the map distance between the genes in map unit (m.u.).
A woman who sought genetic counseling is found to be heterozygousfor a chromosomal rearrangement between the second andthird chromosomes. Her chromosomes, compared to those in anormal karyotype, are diagrammed on the next page:(a) What kind of chromosomal aberration is shown?
A woman who sought genetic counseling is found to be heterozygousfor a chromosomal rearrangement between the second andthird chromosomes. Her chromosomes, compared to those in anormal karyotype, are diagrammed on the next page:(a) This woman is phenotypically normal. Does thissurprise you? Why or why not? Under what circumstancesmight you expect a phenotypic effect of such arearrangement?
Four homozygous recessive mutant lines of Drosophilamelanogaster (labeled 1 through 4) showed abnormal legcoordination, which made their walking highly erratic.These lines were intercrossed; the phenotypes of the F1flies are shown in the following grid, in which “+” represents wild-type walking and “−” represents abnormalwalking:1 2 3 41 - + + +2 + - - +3 + - - +4 + + + -a. What type of test does this analysis represent?b. How many different genes were mutated in creatingthese four lines?c. Invent wild-type and mutant symbols, and write outfull genotypes for all four lines and for the F1 flies.d. Do these data tell us which genes are linked? If not,how could linkage be tested?e. Do these data tell us the total number of genes takingpart in leg coordination in this animal?
A purple flowering, smooth seed dihybrid plant (genotype PpSs) is test crossed with a white flowering, wrinkled seed plant (genotype ppss). These produce progeny in the following numbers of four phenotypes: 24:76:74:26 (purple flower + smooth seed coat: purple flower + wrinkled seed coat: white flower + smooth seed coat: white flower + wrinkled seed coat). a) What is the genotype of the original dihybrid plant? Specify which alleles are on each chromosome of the purple flowering, smooth seed plant (i.e. AB/ab or Ab/aB). b) How many map units separate the colour and seed coat genes? Show your calculations.
The accompanying pedigree shows a family in which one child (II-1) has an autosomal recessive condition. On the basis of this fact alone, provide the following information. 1) What is the chance that among the three children in generation II who have the dominant phenotype, one of them is AAAA and two of them are AaAa? (Hint: Consider all possible orders of genotypes.) Express your answer to two decimal places.
In Drosophila, the gene for wing type is known to be autosomal with vestigial wings (vg) known to the recessive to normal, long wings (+). You are already familiar with the white eye gene (w) from lecture with the normal color being red (+). Answer the following questions assuming an initial cross (P1) between a pure breeding white eyed, long winged female and a pure breeding red eyed vestigial winged male. a) What are the parental genotypes? b) What phenotypes would occur in the F1 generation and in what proportions? c) What would the phenotypes and phenotypic ratios would occur in F2 generation?
Niemann Pick Type C disease is a recessive disorder that causes the accumulation of cholesterol and other lipids in lysosomes, ultimately affecting both the liver and the nervous system. Below are the genotypes and phenotypes of offspring of a family with a history of Niemann Pick. 7 NN ( all normal phenotype) 3 Nn (all normal phenotype) 4 nn (1 early onset dementia, 1 mid-life onset dementia, 2 late-onset dementia). From this information, Niemann-Pick disease is an example of: A) variable expressivity B) incomplete dominance C) incomplete penetrance D) variable expressivity and incomplete penetrance E) multiple alleles
In Figure 6-1,a. what do the yellow stars represent?b. explain in your own words why the heterozygote isfunctionally wild type
A rare blinding disease that has a relation to dengenerative factors is partially penetrant. In the following pedigrees for two families, the affected symptomatic individuals (black circles and squares) have been diagnosed with this disease due to the mutation in mitochondrial DNA m.14484T>C. If III.4 is homoplasmic for m.14484T>C in hair, blood, urine and other tissues examined. What will occur with IV.7 then?