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- 1. Genome-wide Association studies can be used to find genes that contribute to a quantitative trait. True or False 2. Heritability of a trait is a characteristic of a population that won't change over time. True or False 3. Heritability for IQ might be high in one population in one population and low in a different population: True or FalseC. In a horse population, three different traits showing continuous distribution were measured, and their variances are shown in the table below: Traits Cutting Racing Speed Jumping Variance Ability Ability Phenotypic 96 39.2 39 Environmental 42 27.8 16.8 Additive 39 12.4 12 Dominance 10 3.1 9. 1. Calculate the broad sense and narrow sense heritabilities for each trait.Table 7.1: Your genetic traits. Your probable genotype(s) (use only the letter combinations that apply) Your phenotype (list what you look like) Traits (alleles) Almond Straight thumbs 1. Eye shape (R, r) 2. Hitcher's Thumb (H, h) 3. Earlobes (D, d) Free 4. Interlocking Fingers (I, i) Left thumb over right Widows Peak 5. Widow's Peak (F, f) 6. Face Shape (G, g) Oval 7. Eye Color (B, b) Brown 8. Chin Shape (J, j) Round Dimples Brown 9. Dimples (A, a) 10. Hair Color (K, k) Curly 11. Hair Texture (T, t) 12. PTC Taster (Q, q)
- Describe how genetic influences of quantitative traits can be studied in humans. Describe some of the types of studies and why they are helpful. Answer in at least 4 full sentences.What role would twin and adoption studies play in selecting a model for determining whether attendance at medical school is a heritable trait? What heritability values would make you take the study to the next level?10. Record the class data for these traits. Color vision Red-green color blind Widow's peak No widow's peak Trait Widow's peak Free earlobes Mid-digit hair Widow's peak # of WW people # of Ww people q² # of ww people Class data 11. As before, use the Hardy-Weinberg equations to estimate how many people in our classroom population have a given genotype. We will skip this for red-green color blindness because X-linked traits require more complicated calculations. 15 6 9 9 Р Free earlobes Attached earlobes Mid-digit hair No mid-digit hair # of EE people # of Ee people # of ee people p² Free earlobes Class data 6 2pq 9 lo 5 Does p²+2pq+q² = 1? Mid-digit hair E # of HH people # of Hh people # of hh people 12. In our class, is the dominant trait always the most frequent? Why do you think this is? 13. Do you think the frequency of these traits will change if we repeat this experiment in 30 years? (Some food for thought: Do these traits provide an advantage to survival? Do people choose their…
- Edio | Course Student Lesson Using the letter T to represent t x + days/1089940/lessons/1533883/variants/2273231/take/14/ O Alert 1 of 1: Instructional Technology Subsidy Úp. DISMISS * Practice MULTIPLE CHOICE Using the letter T to represent the trait, what is the genotype for individual 7? TT TE it is impossible to determine from this picture Atempe t of 2 683838886 0888.o S of & Total Questions Answered A Changes Saund 21°F SunnyWhen describing quantitative traits, a high variance indicates that: O most values are higher than the mean O the mean value is very high O most values are very close to the mean most values are lower than the mean the variation among the values is highB. The mean and standard deviation of plant height from two rice plants (P1 and P2) and their progeny (F1 and F2) and a backcross generation (P, x F1) are shown below. Мean Standard Coefficient of Population Variance (in) deviation Variation, % P1 34.2 1.2 1.4 3.5 P2 65.3 0.8 0.6 1.2 F1 44.2 1.3 1.7 2.9 F2 46.3 1.9 3.6 4.1 BC1 39.7 1.1 1.2 2.8 1. Calculate the broad-sense heritability of plant in this species. Interpret your results.
- Give at least 3 species characteristics of human beings. What are "phenocopies"? Give at least three (3) specific examples. Examples 1. 2. 3. 3. Which do you think is the most important type of variation? Why? 4. Differentiate continuous from discontinuous trait. Give at least two (2) examples each. Continuous trait Discontinuous traitCigarette Smoking and Lung Cancer, as a Science-educated person, think of these 2 concepts/terms as: a. None of the choices here are acceptable b. Negative Correlation c. Causal relationship d. Positive Correlation *Choose only one answeridentify at least 2 desirable or enhanced trait that each of them has. the first one will be given as an example. EXAMPLE OF PLANTS AND ANIMALS 1. grapes 2. guapple 3. corn 4. rice 5. coconut 6. banana 7. bittermelon 8. cow 9. chicken 10. pig DESIRABLE OR ENHANCED TRAIT seedless fruit