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- vivo V20 male or female. Remember that since most sex-linked traits are recessive, the person wno shows the trait can have no X's with big superscripted letters. So, y a male carries the trait, he must also show the trait. XDY XDXD XªY PXPX Carrier? (Yes or No) Has the Trait? (Yes or No) Male or Female Phenotype or Appearance of the Individual Guided Questions: 1. What chromosomes will result to a normal phenotype (normal spongy pore trait)? 2. Do all individuals who have the spongy tiny pore allele show it in their physical appearance? Why or why not? 3. Can males be a carrier of an X-linked recessive trait? How about females? Explain. 4. What will be the sex of an individual who is easily affected by an X-linked recessive trait? Why?. The Y chromosome is missing this section of the X chromosome. The lower sections Males are at greater risk for inheriting12:27 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: $|||| |||| || | | IITrivla 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 Smooth
- Epistasis: 1) In violets, purple flower color (P) is dominant over white (p), but there is also a gene that determines if that pigment will be expressed in the petals of the flower. If the plant is “cc” then the purple pigment is not expressed in the petals of the flower, and the flower will be white anyway. a. A plant homozygous for both the purple flower and the control gene is crossed with a plant with white flowers and non-expressed pigment. What is the phenotype and genotype of the offspring in this cross? b. If the plants generated in “A” are allowed to self-pollinate, what is the expected phenotypic rations of the resulting offspring?Activity 9GENES SEGREGATION BY BEAN-O TYPE Materials: Colored beans to represent the gene for a certain trait of garden pea. (60 pieces of the same size and shape; 30 pieces of which are of different colors from rest) Procedures: 1. Place the 30 pieces beans (one color) to one container and the other 30 pieces to the other container. Assign which color of beans will represent dominant and recessive genes of a specific trait of garden pea 2. Label the paper container as First Parent P1, male and other P1 female 3. At random, segregate the beans on the Lab table. Assume fertilization occurs and First filial generations (F1) are formed 4. Categorize the formed First filial generations 5. Put all the beans in one container. Assume that all the first filial generations undergo self-fertilization 6. Pick up the beans by two from the container without looking at it and collect the second Filial generation (F2) 7. Categorize the formed Second filial generations into two (2) phenotype, and…PLEASE explain how to do this question step by tspe i am very confused! thank you! You have three independent mutant alleles in the Drosophila gene no legs (nlg): nlg1, nlg2, and nlg3. You assay the phenotype of Drosophila, which is an insect, that are heterozygous for the three allele (heterozygous for a wild-type and a mutant allele), and that are homozygous for the three alleles. Allele nlg1 nlg2 nlg3 heterozygous Wild-type Four pairs of legs Wild-type homozygous Stumpy legs Five pairs of legs No legs nlg1 is a ___X___ allele, nlg2 is a ___Y___ allele, and nlg3 is a ___Z___ allele. X Y Z A Gain of function Null Hypomorphic B Hypomorphic Gain of function Null C Null Gain of function Hypomorphic D Null Hypomorphic Gain of function E Hypomorphic Null Gain of function Referencing the table above, select the correct answer: 1 : A 2 : B 3 : C 4 : D 5 : E Correct answer is B
- 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…Activity 4 Identification of phenotype of known genotype The characteristic of the color of the red tomato fruit (R) is dominant over the characteristic of the yellow color (r) The characteristic of the color of white flowers (W) is dominant over the characteristic of the color of the yellow flowers (w), and the characteristic length of the stem of the plant (T) is dominant over the short characteristic (t) If a red fruit plant with yellow and long-stemmed flowers is crossed, with anotheryellow, white-flowered and short-stemmed plant, knowing that the dominant characteristic is pure. What is the phenotype of individuals of the resulting generation?PEDIGREES: Problem (continued) This pedigree shows the inheritance of cystic fibrosis in this family. I • QUESTIONS ••. 5. What is the genotype of individual II-3? Use the letter "f" to 1 2 represent the disease allele. II 1 2 3 6. Individuals II-I and II-2 are sisters. Explain how it is possible for one sister to have cystic fibrosis but NOT the other. III 1 2 3
- Activity E: Predicting the outcome of a dihybrid cross The resulting phenotypic ratios in the F₂ generation of a dihybrid cross (2 traits) can be quite different than those observed from a monohybrid cross, but the process is essentially the same. First, you list all possible gametes each parent and subsequent parents can produce. Second, you then assign the gametes to a Punnett square and fill it in. Finally, you count the progeny and determine the number of progeny in each phenotypic category. Remember, when determining the types of gametes possible, each gamete must have one member of each homologous pair of chromosomes. This means there needs to be one copy of every gene. For example, if you are considering a T gene (ability to taste PTC) and an F gene (let's say earwax texture- wet earwax is dominant and dry earwax is recessive), each gamete must have one allele for the T gene (either T or t) and one allele for the F gene (either For f).Answer the following questions. 1. Construct a map for the genes d,e,f. Assume that: d and e = 3%; e and f = 5%. Give 2 arrangements of the genes/maps. 2. If d and f = 2%, what is the correct arrangement of the genes d,e,f? 3. Consider the fourth gene "g". if g and e = 1.5%, give two possible arrangements. 4. If d and g = 1.5 % give the correct order of the four genes %3Dng -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 PREVIOUS