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Q: Question 1 of 12 If 81% of a population is homozygous recessive for a given trait a. What is the…
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Q: QUESTION 5 What is the difference between a phenotype and a genotype? O 1.A phenotype is the set of…
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Q: QUESTION 3 Some dogs bark while following a scent trail, others are silent. The barker allele is…
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Q: Question 7 The recessive allele frequency is .5. What is the homozygous recessive genotype…
A:
Q: Mitochondrial DNA is only inherited through the maternal lineage. True False
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A: c. The variation in phenotypes is greater in the F2 population as compared to the F1 population.
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Q: An organism that is heterozygous for two traits with the genotype AaBb can form sperm with all of…
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Q: QUESTION 13 In humans, the presence of facial dimples is dominant to no facial dimples. Out of a…
A:
Q: Albinism is caused by an autosomal recessive allele that interferes with skin pigmentation in…
A: Dear student, We are authorized to answer three subparts at a time, since you have not mentioned…
Q: QUESTION 35 You are conducting a QTL analysis to better understand monkey flower color and…
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- Question 1 You are doing a genetics experiment with the fruit fly. In the "P" generation, you cross two true-breeding flies. The female parent is brown and wingless and the male parent is black with normal wings. All of the flies in the F1 generation are brown and have normal wings. Indicate the alleles associated with dominant phenotypes by uppercase letters and alleles associated with recessive phenotypes by lowercase letters. Assume the genes are not found on a sex chromosome. Indicate the color alleles as "B" and "b" the wing alleles by the letters "N" and "n". a) The genotypes of the flies in the P generation are: female and male. b) The genotype of the flies in the F1 generation is: c) You now take an F1 female and cross her to a true-breeding black, wingless male. This male's genotype is: d) You count 1600 offspring in the F2 generation. If the wing and the color traits were linked and no recombination occurred, you would expect to count: # of brown, winged flies (of the…Question 25 Consider these Traits: Thick lips (C); thin lips (c) Construct a Punnett square where the father is heterozygous and mother is homozygou recessive to answer the following questions: What is the genotype ratio of all the offspring? [Select] What is the phenotype ratio of all the offspring? Select] What percentage of the offspring have the same lips as the father? 1O 40 144 立Question 20 Assuming the recessive phenotype is shaded, what is the genotype of individual 11? AUTOSOMAL RECESSIVE 15 16 O rr O RR O Rr Or OR
- Question 18 Recessive mutations in autosomal genes purple eye (pr), curved wing (c) and black body (b), as well as their wild type alleles are used for genetic mapping. An F1 Drosophila female heterozygous for purple eye (pr), curved wing (c) and black body (b) is crossed to a homozygous mutant male. This is a standard three-point mapping cross. The observed numbers and phenotypes of of the offspring from this cross are follows: 360 pr c b 380 pr+ c+b+ 107 pr c+ b 98 pr+ c b+ 27 prcb+ 18 pr+ c+ b 6 pr c+b+ 4 pr+ c b A total of 1000 flies. What is the distance between genes pr and b? 21.5 m.u. 1 m.u. 5.5 m.u. 6 m.u. 21 m.u. QuQuestion 4 Penguin pigmentation is subject to epistasis of the Balleles by the d alleles. B (black) is dominant over b (brown). Dis dominant over d.Homozygous d is epistatic to the black and brown genes. Given this information, what will be the ratio of phenotypes in F2 generation of penguins? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. 9/16 black, 6/16 brown, 1/16 white a 9/16 black, 3/16 brown, 4/16 white 9/16 white, 6/16 brown, 1/16 black 9/16 white, 3/16 brown, 4/16 black All black hanswered a SaveQuestion 5 If a person has the genotype DD, they are considered to be? homozygous dominant heterozygous O homozygous recessive
- Question 6 Albinism is caused by an autosomal recessive allele that interferes with skin pigmentation in mammals. Two normally pigmented human parents already have an albino boy. They plan to continue to have children until they get a girl. Some or all of this information is important for each of the questions below. a) What is the probability that their next child (currently unborn) will be a girl with albinism? Explain your reasoning. b) What is the probability their first female child will be albino? Explain your reasoning. c) The answer to part (b) is different (and, yes, the answer is different) from the answer to part (a). Explain why. (Hint: it has something to do with the underlined words.)Question 3. There are 100 students in a class. Ninety-six did well in the course whereas four blew it totally and received a grade of F. Sorry. In the highly unlikely event that these traits are genetic rather than environmental, if these traits involve dominant and recessive alleles, and if the four (4%) represent the frequency of the homozygous recessive condition, please calculate the following: A) The frequency of the recessive allele. B) The frequency of the dominant allele. C) The frequency of heterozygous individuals. Question 4 Within a population of butterflies, the colour brown (B) is dominant over the colour white (b). And, 40% of all butterflies are white. Given this simple information, which is something that is very likely to be on an exam, calculate the following: A) The percentage of butterflies in the population that are heterozygous. B) The frequency of homozygous dominant individuals. Question 5 A rather large population of organisms have 396 red-sided individuals…Question 2 2 pts Provide the genotypes for individuals who are homozygous dominant, heterozygous, and homozygous recessive. You may use whichever letter of the alphabet you would like to express the genotypes. HTML Editor BIUA - A I E E EEX x, E E E- E P ņ A Vx D G DT 12pt O words MacBook Air
- QUESTION 6 For a trait known to be caused by a mitochondrial gene variant, there may be an occasional female that can transmit different phenotypes to her progeny on an apparently random basis. What situation might you suspect? O She is heterozygous for this trait. She displays heteroplasmy for this trait. O She displays a low rate of mutation. She is the product of a somatic mutation.Question 10 Listen Donna is heterozygous for both hemophilia (a sex linked recessive trait) and Sickle Cell Anemia an (autosomal recessive trait). She has children with Michael who does not have hemophilia but is also heterozygous for Sickle Cell Anemia. What fraction of their sons with have both hemophilia and Sickle Cell Anemia? a) 1/8 b) 1/2 c) 1/4 d) 1/16Question 16 of 18 A geneticist is using a three-point testeross to map three linked Drosophila recessive mutations called a, b, and c, where a is associated with anomalous gait, b is associated with buckled wings, and c is associated with curved bristles. She first crosses homozygous anomalous, buckled flies to homozygous curved flies. Next, she testcrosses the Fi progeny to anomalous, buckled, curved flies. She obtains 1000 progeny distributed as shown. From this data, calculate the map distance between b and c. Testcross progeny phenotype Number map distance: m. u. curved 281 anomalous, buckled 279 wild type 4 6. anamalous, buckled, curved buckled, curved 133 anomalous 127 86 anomalous, curved buckled 84