Monday, May 18, 2020

exam 1 - 2121 Words

Study4Finals: Bio 97 ADL 10 ADL 11 Homework - Googleæâ€"‡æ ¡ £ ç ¬ ¬1é ¡ µ å… ±11é ¡ µ https://docs.google.com/document/d/1G8cf7cZrQbRDH7UG05fGtBUmSJ... Study for Bio 97 Notes for Finals (ADL HW 10) Item #1 Recombination occurs when combinations of alleles not found in either parent are placed into gametes during meiosis in the F generation. The F can be thought of as having been formed 1 1 from two haploid â€Å"input† gametes. In this case, the F is a dihybrid with AB on one chromosome and ab on the other 1 chromosome. You can tell this by looking at the parents. The F1 hybrid got AB from one parent and ab from the other parent (AB/ab). A dihybrid that is AB/ab can produce four possible â€Å"output† gametes through meiosis. Output gametes that match one of the†¦show more content†¦Item #2 Part A: Two genes that are separated by 10 map units show a recombination percentage of 10%. = (TRUE) because one map unit is equal to 1% recombination between two genes; 10 map units would be equal to 10% recombination between the genes. (*map unit =mu) Part B: Genes X, Y, and Z are linked. Crossover gametes between genes X and Y are observed with a frequency of 25%, and crossover gametes between genes Y and Z are observed with a frequency of 5%. What is the expected frequency of double crossover gametes among these genes? = 1.25% Correct The probability of a double crossover is the product of the probabilities of the single crossovers: 0.25 x 0.05 = 0.0125, or 1.25%. Part C: Assume that the genes from the previous example are located along the chromosome in the order X, Y, and Z. What is the probability of recombination between genes X and Z? = 30% Recombination frequencies between linked genes along a chromosome are additive, so the recombination frequency between genes X and Z is 25 + 5 = 30. Item#3 Part A: To construct a mapping cross of linked genes, it is important that the genotypes of some of the gametes produced by the heterozygote can be deduced by examining the phenotypes of the progeny. =TRUE To construct a mapping cross of linked genes, it is important that the genotypes of all of the gametes produced by the heterozygote can be deduced by examining the phenotypes of the progeny,Show MoreRelatedEXAM 1 926 Words   |  4 Pagesï » ¿SSD IV MOD 2 EXAM 1 WHAT IS MENTORSHIP? A VOLUNTARY DEVELOPMENTAL RELATIONSHIP THAT EXISTS BETWEEN A PERSON OF GREATER EXPERIENCE AND A PERSON OF LESSER EXPERIENCE CHARICTORIZED BY MUTUAL TRUST AND RESPECT 1 WHAT ARE THE PRINCIPLE WAYS IN WHICH LEADERS DEVELOP OTHERS? 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