Question 1The possession of one of two types of earlobes (hanging or attached) issometimes used to study the inheritance of characteristics in humans. Thepedigree shows the different types of earlobes present in three generations.KEYmale with hanging earlobesIIfemale with hanging earlobesmale with attached earlobesfemale with attached earlobesIIIDiscuss the type of inheritance shown in the pedigree. In your answer, includereference to the alleles involved using standard notation.

The study of inheritance pattern is an important phenomenon for tracing the heritable traits which…

Answered: Question 1 The possession of one of two…

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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QUESTION 13 Use the pedigrees below to answer the corresponding. What is the most likely mode of inheritance for this trait? 11 a. Mitochondrial Ob. Autosomal dominant Oc. X-linked recessive Od. Autosomal recessive Oe. Y-linked
QUESTION 10 When considering two genes which are complementary such as AAbb x aaBB, what phenotypic ratio do you expect to be observed in F2 progeny? 15;1 9:7 1:1 9:3:4
QUESTION 6 In Drosophila, sepia eyes (se) and stubble bristles (sb) are recessive to the wildtype eyes and bristles (se* and sb+). A female heterozygous for both genes was test crossed to a male homozygous recessive for both genes. The progeny of this cross are given below: Phenotypes wildtype eyes and wildtype bristles (set, sbt) # of Progeny 334 widltype eyes and stubble bristles (set, sb) 162 sepia eyes and wildtype bristles (se, sb+) 158 sepia eyes and stubble bristles (se, sb) 346 What is the genetic distance (in map units) between these two genes? Are the alleles in the heterozygous female in the cis (coupling) or trans (repulsion) conformation? Are the two genes in this problem unlinked, completely linked or incompletely linked?
Question 5 Assume you discovered two new genetic traits in drosophila caused by two different mutations. In the first trait, you can clearly distinguish that the flies can have either 2 or 3 stripes on their body. For the other trait, you can distinguish yellow bodies in some flies and white bodies in others. You hypothesize that the stripe trait is controlled by 1 gene (where 2 stripes (S) is dominant over 3 stripes (s)) and that a different gene determines the body color (where white (W) is dominant over yellow (w)). You hypothesize that the genes are on different chromosomes. You set out to test your hypothesis, by crossing F1 heterozygote (in other words, dihybrids) male and female flies. Below is a table as it appears in YOUR lab book. You have already indicated the number of flies you have obtained for each combination of phenotypes. Perform a chi²-test by completing the table below to determine if your data is consistent with your hypotheses. Provide your reasoning by showing…
Question 17 What is the offspring genotypic ratio for a cross of a homozygous recessive individual and a heterozygous individual? 2:2 or 1:1 dominant : recessive O a. all heterozygous O b. 1 dominant : 2 heterozygous : 1 recessive O C. all recessive Od. 2:2 or 1:1 dominant : heterozygous O e. all dominant O f. 3 dominant : 1 recessive Og. 2:2 or 1:1 heterozygous : recessive h.
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QUESTION 40 Under what situation would you expect haplotype frequencies to remain unchanged from one generation to the next? a. the recombination rate is zero b. the coefficient of LD is 0.5 c. the two loci are in linkage disequilibrium d. crossing over between two loci occurs regularly
Question 19
Question 13 If a person develops skin cancer because frequent exposure to sunlight induced a mutation in their skin tissue, the person: O will pass on an increased chance of cancer to any children conceived after they acquired the mutation. O will pass an increased chance of cancer to 50% of children because only 50% of gametes will receive the mutated chromosome. O will not pass on an increased chance of cancer to their children. O It's impossible to tell without knowing if the mutation is dominant or recessive
QUESTION 18 Which of the following statements about Transmission Ratio Distortion, as exemplified by the SD (Segregation Distorter) system in Drosophila, is TRUE? O Transmission ratio distortion is caused by inversions on the SD chromosome. O The SD system includes a cis-acting, shortened version of a RanGAP protein and a trans-acting DNA repeat locus. O Distortion operates only in males, due to sex-linkage. O The SD chromosome distorts transmission ratios by killing gametes that do not contain it. The loci that make up the SD system assort independently of each other at meiosis.

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Question 1 The possession of one of two types of earlobes (hanging or attached) is sometimes used to study the inheritance of characteristics in humans. The pedigree shows the different types of earlobes present in three generations.