1/2 Genetics Problem Set 1 In hamsters, black (B) is dominant over white (b) hair, give the genotypes of the following examples: 1. Homozygous Black 2. Heterozygous Black Pure Black Hybrid Black 5. White atunes for the follo 3. 4.
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- In a mating between two individuals that are heterozygous for a recessive lethal allele that is expressed in utero, what genotypic ratio (homozygous dominant: heterozygous:homozygous recessive) would you expect to observe in the offspring? a. 1:2:1 b. 3:1:1 c. 1:2:0 d. 0:2:1Trivla Game Show _Make Your Own Tri ngston.schoology.com/common-assessment-delivery/start/4789189591?action=onresume&submissionld=463322566 Dillon WF g Aa v Done In guinea pigs, black hair (B) is dominant to white hair (b) and rough hair (R) is dominant to smooth hair (r). What are all the possible genotypes of a guinea pig that has black, rough hair? (Select all that apply.) O BBRR BBRr BBrr BBRR BbRr O bbRR O bbRr O bbrr O Black O White O Rough OSmooth O Rough O Smoothdd-ons Help в I U A Calibri 12 三 三1 |:三 6. Consider a guinea pig with a homozygous genotype and a white fur color phenotype. a. What is the probability this parent will produce a gamete with the dominant allele? b. What is the probability this parent will produce a gamete with the recessive allele? C. If 31 sperm cells are collected from this guinea pig, how many would you expect to have the recessive allele (as determined by sequencing the gene)? !!!
- ALL WORKING MUST BE SHOWN Problem 3) Butterflies show 3 phenotypes due to incomplete dominance at the D locus with alleles D' and DB giving green phenotype in heterozygotes and yellow and blue in homozygotes a) A population of butterflies showed 49% yellow, and 51% blue and green. What percentage of the gametes for the next generation would contain the DB allele? b) In another population only 1% of the butterflies are blue, What is the DY allele frequency? c) If the butterflies were subject to predation by birds that could easily detect blue & yellow individuals what effect would you expect this to have on the genotype and allele frequencies over time? Indicate possible percentages.12:27 O Q3. ACTIVITY 2. NONMENDELIAN INHERITANCE 4. If several pea plants with the genotype TTYY are crossed with pea plants with the genotype Tiyy, what percentage of the offipring will be expected to have the TTYY allele combination? 5. In humans, the alleles for blood type are designated I (A-type blood), P (B-type blood) and i (O-lype blood). What are the expected frequencies of phenotypes in the following matings? Draw a Punnett square showing the results for a %AB a) heter A x heter B: b) A" x 1i: e) 11 x I"": di AB xO: $|||| |||| || | | IIDihybrid Cross Problem 3: A genetic cross yielding a 9:3:3:1 ratio of offspring. Which of the following genetic crosses would be predicted to give a phenotypic ratio of 9:3:3:1? A. SSYY x ssyy B. SsYY x SSYy C. SsYyx SsYy D. SSyy x ss YY E. SsYY x ssyy.
- ull T-Mobile LTE 10:32 PM © 73% Mendelian Genetics Lab LASC... MENDELIAN GENETICS Define the following terms: Gene: Homozygous: Allele: Heterozygous: Phenotype: Dominant: Genotype: Recessive: P, F1, F2 generations: Introduction to probability To understand genetics, it is essential to understand probability. The numerical value of the probability of an event can range from 0 (impossible) to 1 (certainty). For example, what is the probability of flipping a coin and getting tails? There are two possible outcomes (heads and tails) that are equally likely, but we are looking for the probability of just one of them (tails). Probability of tails = ½ = 0.5. What is the probability of tossing a six-sided die and getting a four? What is the probability of tossing a six-sided die and getting an even number? What is the probability of tossing a six-sided die and NOT getting a four? The first law of probability states that the results of one trial do NOT influence the results of later trials for…ng -Courses iblic/activ 003004/a s sment al V T-Rex Game. un in to your acc. L 1.3.4 Quiz: Predicting Genetic Outcomes Question 1 of 10 Mendel used over 28,000 pea plants in his experiment. How does this large sample size make his results more reliable? O A. He was not sure which of the plants were female and which were male. B. Most of the plants were unable to reproduce, so he needed many of them. C. He used more plants so the experiment wouldn't take as long. D. It made his actual results approach the results predicted by probability. SUBMIT E PREVIOUSAaBbCcDdE AaBbCcDc AaBbC Normal No Spacing Heading 1 Head Activity 1. 3. Based on the following data which of the following would be considered: a. Recessive? b. Dominant? C. A weak loss-of-function mutation? d. A null mutation? e. A haploinsufficiency ? Data - Gene "B" is required for formation of body segments. A wild type fly had 3 body segments. BB (Homozygous dominant) Wild Type Bb (Heterozygous) bb (Homozygous recessive) Lacks all body segments 1 body segment Mutant 1 Wild Type Mutant 2 Wild Type 2 body segments Mutant 3 Wild Type Wild Type 2 body segments Activity 4 tv Ps X W 000 DII DD II
- Product Rule Given the following traits that the parents have, assign the letters H for hair type, E for eyelids, and L for lip color. Parent 1: Homozygous curly hair Homozygous short eyelids Homozygous pale lips (dominant) Genotypes Probability (fraction) (Parent 1) Parent 2: Heterozygous straight hair Heterozygous long eyelids Homozygous red lips (recessive) Probability (fraction) (Parent 2) Probability (fraction) 3. What is the probability (in percentage) that their child will inherit the following genotypes? Homozygous curly hair, Homozygous short eyelids, Heterozygous pale lips Probability= %4G 4G 13:44 03 .. O NC Y 46: 13 KB/dtk LTE2 Google Lens * Indonesia Inggris 9. A yellow base color-normal wing (BBCC) parakeet is bred with a white base color-clear nine utih from ya wing (bbcc) parakeet to produce a yellow base color-normal wing (BbCc) u): but, parakeet. Furthermore, fellow descendants of F, are mated. From these crosses, the percentage of probability in F, that a parakeet appears that has the same genotype as its parent which is homozygous dominant .... is. a. 56,25% 18,75% d. 6,25% C. b. 25% gan 10. Heterozygous red fish are mated with white fish. It is known that red is dominant over white. From these gan may tih crosses, 48 fish were produced. The possible number of red fish with a genotype like the parent is as much as .. a. 12 tails Rr. 24 tails C. b. 18 tails me d. 48 tails B. Do the following questions! 1. A bird farmer wants to have a vellow parakeet. Known genotype and phenotype in parakeets as follows. PP: parakeet is green. Pp: a blue parakeet ah air an…Sex-linked Traits Practice Problems 1. In fruit flies, the gene for white eyes is sex-linked recessive. (R) is red and (r) is white. Cross a white- eyed female with a normal red-eyed male. a. What percent of the males will have red eyes? White eyes? b. What percent of the females will have red eyes? White eyes? c. What total percent of the offspring will be white-eyed?