Given the information provided, how many genes are defined among these five mutant lines? 4 2 3 O 5 1 A researcher mutagenized a group of butterflies and isolated six butterflies with extra-long bodies. Each butterfly has a recessive mutation in only one gene. The researcher performed a complementation test using the six butterflies and got the following results, where "+" is wild-type body and "-" is extra-long body. 1 2 3 4 1 + 3 4 + - ? ? + - + + + + +

Given the information provided, how many genes are defined among these five mutant lines? 4 2 3 O 5 1 A researcher mutagenized a group of butterflies and isolated six butterflies with extra-long bodies. Each butterfly has a recessive mutation in only one gene. The researcher performed a complementation test using the six butterflies and got the following results, where "+" is wild-type body and "-" is extra-long body. 1 2 3 4 1 + 3 4 + - ? ? + - + + + + +

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter15: Genomes And Genomics

Section: Chapter Questions

Problem 3QP

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You are studying 5 genes: a, b, c, d, and e. In an attempt to map them, you perform a series of two-point crosses with the results listed below. Select the appropriate gene order based on the results of your experiment. a-b = 20 map units; a-c = 16 map units; a-d = 12 map unit; b-d = 8 map units; b-e = 4 map units; c-d = 28 map units; c-e = 40 map units; d-e = 12 map units. Group of answer choices 1)e-b-a-c-d 2)e-b-d-a-c 3)a-c-e-b-d 4)a-b-c-d-e
You conduct a series of two-point mapping crosses involving five genes located on chromosome III and obtain the following percentage of recombinant offspring: h-cu eyg-h eyg-cu rai-eyg rai-h rai-cu th-cu th-h th-eyg th-rai 23.5% 9.0% 14.5% 18.5% 9.5% 33.0% 6.8% 16.7% 7.7% 26.2% The rai gene is at the near end of the chromosome. Gene th is between which two genes? A. eyg and cu B. rai and cu C. h and cu D. rai and h
The original gene order on the chromosome for eight linked genes is A B C D E F G H. What would the gene order be after an A through C duplication followed by a D through F inversion? a. A B C D E F G H b. A B C A B C D E F G H c. A B C A B C D F E G H I d. A B C A B F E D G H e. A B C A B C F E D G H
The coloration of calico cats is also the result of the inactivation of one of a female cat's sex chromosomes. In females, two X chromosomes are present in all cells but only one is active, the inactive one is called a BARR BODY. This is why the coat color is random, even among cloned calico cats that have identical genomes. Calico is a coat color found in cats, which is caused by a SEX-LINKED, CODOMINANT allele.
Eye colors are passed down through generations, but sometimes genetic variations can lead to surprising results in eye colors (dark eye color, still rocks!?) Some examples are found below. Is there truth behind the following? Provide explanations for your answer. Two parents with blue eyes cannot have a brown-eyed child and vice-versa. Eyes with more than one color stems from parents with two different eye colors. People with violet eyes are mutants. People with red or pinkish eye color can have dark-eyed parents.
The region of the normal hemoglobin gene used for genetic testing for sickle cell anemia contains a restriction site such that homozygous normal individuals show two DNA fragments. If a single nucleotide change in hemoglobin destroys that restriction site, then how many DNA fragments will be visible on a gel from individuals that are homozygous mutant? What about heterozygotes?
This research exploited the principles of Mendelian genetics combined with the MCR technique to genetically manipulate fruit flies. Now, suppose you do a similar experiment. You perform two crosses: one that allows for Mendelian patterns of inheritance, and another that uses MCR with CRISPR-Cas9 to genetically edit the eye color of fruit flies. In fruit flies, the gene for eye color is located on the X chromosome. Red eyes (wild type, w+) are dominant to white eyes (mutant, w-). Let’s see how well you can predict genotype and phenotype ratios resulting from the two crosses. Genetic cross 1 (without MCR): Cross between a white-eyed male and a homozygous red-eyed female. Genetic cross 2 (with MCR): Cross between an MCR-element (carries the CRISPR-Cas9 construct) white-eyed male and a homozygous red-eyed female. Keep in mind, this technology converts a heterozygous genotype to a homozygous recessive genotype. Drag the labels to the table to fill in the genotypic and phenotypic ratios.
You sample DNA from seven bighorn sheep from a population of 2,000 in the Rocky Mountains of Colorado. You sequence 10,000 basepairs from an intron in a diploid coat color locus. You think the SNP mutation rate is somewhere around 10-3 per generation for the whole locus. How many SNPs do you expect to find?
Imagine that you caught a female albino mouse inyour kitchen and decided to keep it for a pet. A fewmonths later, while vacationing in Guam, you caughta male albino mouse and decided to take it home forsome interesting genetic experiments. You wonderwhether the two mice are both albino due to mutations in the same gene. What could you do to find outthe answer to this question? Assume that both mutations are recessive.
Achondroplasia is a form of dwarfism that is inherited in humans as an autosomal dominant disorder. A survey in a small country showed that, within a two-year period, there were 24 children with normal parents born with this disorder out of a total of 16,789 births. What is the mutation rate in mutations/locus/generation? answer to the nearest 0.0001.
In 1967, a couple accused a hospital of switching their baby with another. DNA interpretation did not exist at this time so the hospital traced the blood types of the family in order to determine if a mistake was made. The mother had Type A blood, the father had Type AB blood, and the baby had Type O blood. Use the Punnett square to defend your answer to the following question: Did the hospital make a mistake and switch the baby? ____________
For this particular family, what is the recombination rate between the D17S74 marker and the breast cancer gene? Lets say that at age 45 the third granddaughter III-3, is diagnosed with breast cancer. Now recalculate the recombination rate between the marker locus D17S74 and the breast cancer gene? Use only the 5 women in your analysis:the two daugthers in generation II and the three granddaughters in generation II