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Genetic Recombination
Recombination is crucial to this process because it allows genes to be reassorted into diverse combinations. Genetic recombination is the process of combining genetic components from two different origins into a single unit. In prokaryotes, genetic recombination takes place by the unilateral transfer of deoxyribonucleic acid. It includes transduction, transformation, and conjugation. The genetic exchange occurring between homologous deoxyribonucleic acid sequences (DNA) from two different sources is termed general recombination. For this to happen, an identical sequence of the two recombining molecules is required. The process of genetic exchange which occurs in eukaryotes during sexual reproduction such as meiosis is an example of this type of genetic recombination.
Microbial Genetics
Genes are the functional units of heredity. They transfer characteristic information from parents to the offspring.
9. differentiate between linkage and recombination
Step by step
Solved in 3 steps
- 1.This is the ratio of observed double recombinants to the number of expected double recombinants. [ Choose ] Conjugation Reciprocal Crosses Transduction Binary Replication Haplotype Interference Transformation Gain of Function Mutation Allelic Series Blending Theory Dosage Compensation Rolling Circle Replication Pleiotropy Coefficient of Coincidence Reciprocal Cross Loss of Function Mutation Synaptonemal Complex Allelic Phase Allele Chiasma Law of Independent Assortment 2.The specific array of alleles encoded by linked genes in a segment of a single chromosome. [ Choose ] Conjugation Reciprocal Crosses Transduction Binary Replication…Why is it more efficient to perform a test cross with a homozygous recessive donor than a homozygous dominant donor? How could the same information still he found with a homozygous dominant donor?The gene for flower position in pea plants exists as axial or terminal alleles. Given that axial is dominant to terminal, list all of the possible F1 and F2 genotypes and phenotypes from a cross involving parents that are homozygous for each trait. Express genotypes with conventional genetic abbreviations.
- 2. A series of 2-point crosses were carried out among 7 loci (a, b, c, d, e, f, and g), producing the following recombination frequencies. Map the 7 loci, showing their linkage groups, the order of the loci in each linkage group, and distances between the loci of each group. Loci % Recombination Loci % Recombination - b 50 c-d 50 а — а — с 50 С —е 26 а —d 12 c-f 50 а — е 50 С — 50 а -f 8. d - e 50 50 d-f d-g е -f 4 50 a - g b - c b - d b - e b-f b -g 10 8. 50 50 18 e -g 50 50 f - g 50 501. A mechanism for equalizing the expression of X-linked genes in males and females of a species. [ Choose ] Conjugation Reciprocal Crosses Transduction Binary Replication Haplotype Interference Transformation Gain of Function Mutation Allelic Series Blending Theory Dosage Compensation Rolling Circle Replication Pleiotropy Coefficient of Coincidence Reciprocal Cross Loss of Function Mutation Synaptonemal Complex Allelic Phase Allele Chiasma Law of Independent Assortment 2. A group of alleles of a gene that show a hierarchy of dominance relationship among them. [ Choose ] Conjugation Reciprocal Crosses Transduction Binary Replication…2. The homozygous mutant a, an allele of the albinism gene in the mouse, has a white coat and dark eyes. The homozygous mutant p has pink eyes. Mice of genotype a+/+p are testcrossed with mice homozygous for the two mutations. The progeny obtained are shown below. Calculate the recombination frequency and map distance between the two genes. Phenotype of Progeny White coat, dark eyes White coat, pink eyes Dark coat, white eyes Dark coat, pink eyes Number 240 31 34 474
- 1. The term for an alternate form of a gene. [ Choose ] Conjugation Reciprocal Crosses Transduction Binary Replication Haplotype Interference Transformation Gain of Function Mutation Allelic Series Blending Theory Dosage Compensation Rolling Circle Replication Pleiotropy Coefficient of Coincidence Reciprocal Cross Loss of Function Mutation Synaptonemal Complex Allelic Phase Allele Chiasma Law of Independent Assortment 2. The theory that trait of offspring are an average of parental traits. [ Choose ] Conjugation Reciprocal Crosses Transduction Binary Replication Haplotype Interference Transformation Gain…4. Draw a diagram clearly showing how intragenic recombination can take an individual who is cc and produce gametes that are dominant C phenotype.5. A strain of Neurospora with genotype A B is crossed with a strain with the genotype a b. Half the progeny are A B and half are a b. Explain how this is possible?
- 1) If a person who is AaBb (where A/B are is trans) undergoes recombination. What are the 4 possible outcomes? Which of the 4 are the recombinants and which are nonrecombinantes?2. Generate the two resulting recombinant chromatids that result from the crossover events that must occur at the indicated "X". 1 1' 2 2' X 3 3' 4 4' 5 X X 5' 6 6'6. Identify the mode of inheritance for the following pedigree. Provide the genotypes of indicated individuals. ? Genotypes: Il-1 IV-1 V-6 Il-2 IV-2 V-12 Il-3 IV-3 V- 14 III-1 IV-4 V-16 III-13 V- 1 V-19