2). In bullhead catfishes, the nuclear DNA locus R is aspecies marker (does not determine species! but isassociated with it), the genotype RR indicates the Blackbullhead species, while the genotype rr indicates Brownbullhead species. Mitochondrial species markers(mtDNA) are also known for bullheads, allele 1 (e.g.,haplotype 1) indicates Black bullhead and allele 2 (e.g.,haplotype 2) indicates a Brown bullhead. A female catfishwith the genotype Rrand mtDNA haplotype 1 is caughtin the Sacramento River, a known hybrid zone, andcrossed with a male Brown bullhead in the Universityfreshwater aquarium. Assume maternal inheritance inmtDNA in fish, just like humans. What are the genotypicratios and haplotypes of the progeny from this cross?

In this cross, we are considering a female catfish with the genotype Rr (nuclear DNA) and mtDNA…

Answered: 2). In bullhead catfishes, the nuclear…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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DNA from species A, labeled with 14N and randomly fragmented, is renatured with an equal concentration of DNA from species B, labeled with 15N and randomly fragmented, and then centrifuged to equilibrium in CsCl. 5% of the total renatured DNA has a hybrid density. What fraction of the base sequence is common to the two species?
. Use the following sequence data to assign haplotypes and build a haplotype network for a 200 bp variable region that is sequenced from eight individuals. Polymorphic nucleotide positions are shown. Δ is a 1 bp deletion. Explain the logic supporting the network. If there are different nucleotide changes at one position, indicate the different changes on your network. Individual 24 56 92 119 146 172 haplotype 1 A C A T G G A 2 T C Δ C G G 3 A G A T A T 4 A G A T G T 5 A C Δ C G G 6 A G A T G G 7 A G A T A T 8 C C Δ C G G
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1.) Scientists use PCR to check three calves born to the same cow for a gene sequence from hemoglobin. The sequence is unique to one of the three bulls (bull A, as opposed to bulls B and C) with which the cow has run during mating season. Connect the calves with their fathers as much as possible. Calf Has sequence? 1 No 2 No 3 Yes
. Peas (Pisum sativum) are diploid and 2n = 14. In Neurospora, the haploid fungus, n = 7. If you were to isolategenomic DNA from both species and use electrophoresisto separate DNA molecules by size, how many distinctDNA bands would be visible in each species?
25., Snow geese (Chen caerulescens) come in two color types, white “snows” and “blues” with dark bodies. A single gene controls coloration, where the dark (“blue”) allele (D) is dominant. A population of 30,012 geese includes 9236 dark individuals. Genetic testing reveals that 7636 of the 9236 dark individuals are heterozygous (Dd). How many individuals are dd? 7636 13140 1600 20776
In a study of a muscle disorder, several affected families exhibitedvision problems, muscle weakness, and deafness (M. Zeviani et al. 1990.American Journal of Human Genetics 47:904–914). Analysis of themtDNA from affected members of these families revealed that largenumbers of their mtDNA molecules possessed deletions of varyinglengths. Different members of the same family and even differentmitochondria from the same person possessed deletions of differentsizes, so the underlying defect appeared to be a tendency for the mtDNAof affected persons to have deletions. A pedigree of one of the familiesstudied is shown below. The researchers concluded that this disorder isinherited as an autosomal dominant trait, and they mapped the diseasecausinggene to a position on chromosome 10 in the nucleus.a. What characteristics of the pedigree rule out inheritance of a traitencoded by a gene in the mtDNA as the cause of this disorder?b. Explain how a mutation in a nuclear gene might lead to deletions…
A student in lab has just used their mtDNA chromatogram to construct a list of mutations found in their sequence. Based on the key mutations found in their sequence, they believe they belong to either haplogroup Q or haplogroup M1. The presence of which mutation would help them determine between haplogroup Q or haplogroup M1? T16278C G16129A! T16187C T16311C! T16362C A16241G
I have seen that this was answered as C, Why is the answer C, how is that not evidence of it being genetic? Shouldnt it be none of the above? Question: Of the following, which supports the idea that alcoholism has no genetic or a low genetic component? a) Some strains of mice select alcohol over water 75% of the time, whereas others shun alcohol. b) The concordance value is 55% for MZ twins and 28% for DZ twins. c) Biological sons of alcoholic men who have been adopted have a rate of alcoholism more like that of their adoptive fathers. d) There is a 20% to 25% risk of alcoholism in the sons of alcoholic men. e) None of these.
Which of the following mutations is only found in Haplogroup F? O T16223C O G16230A O T16304C O A16129G O C16311T
1. The electrophoresis gel below shows allozyme polymorphisms of the sevenless gene (Sev) from 16 individuals sampled from a Drosophila melanogaster population. Assume that all genotypes of Sev in the population were sampled. a. Please estimate the genotype frequencies and allele frequencies of this population. b. Please compute the heterozygosity (h) of this gene. %3D
The hemoglobin B gene (Hb) has a common allele (A) ofa SNP (rs334) that encodes the HbA form of (adult) hemoglobin and a rare allele (T ) that encodes the sicklingform of hemoglobin, HbS. Among 571 residents of a village in Nigeria, 440 were A/A and 129 were A/T, and 2were T/T individuals were observed. Use the χ2 test todetermine whether these observed genotypic frequencies fit Hardy–Weinberg expectations.

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