GENETICS AND GENETIC IMPROVEMENT OF AGRICULTURAL PLANTS M - Z
Module GENETICS

Academic Year 2022/2023 - Teacher: Giancarlo RAPPAZZO

Expected Learning Outcomes

The Genetics module aims to provide the fundamental knowledge of classical and molecular genetics by providing a framework consistent with the teaching of the other planned module of the I.C. and with the other biological courses envisaged by the Degree in Biotechnology.

The student in Biotechnology, with the didactic module of GENETICS acquires the knowledge of Mendelian analysis methods and understands the mechanisms by which Mendelian characters are inherited and learns to apply them for solving genetic problems. You acquire basic knowledge about the structure of genetic material and its organization, as well as the general principles of gene expression. The student knows the main methods of analyzing DNA and its polymorphisms, and understands that many molecules involved in the main genetic processes are widely used in biotechnology. It includes the characteristics of the different types of mutation, the related phenotypic effects, the main mechanisms of spontaneous DNA mutation and its meaning also in the context of evolution. Students at the end of this course will have to be able to effectively communicate biological information, and genetic information in particular, with a specific language.

Course Structure

The course will be carried out through frontal lessons and exercises, according to the methods established by the course of study

Required Prerequisites

the organization of living matter and the cell.

Basic skills in mathematics and statistics are also required.

Attendance of Lessons

Attendance to the course is arranged by regulations of the course of study

Detailed Course Content

Mendelian genetics. Continuous and discreet variability. The characters, the phenotype and the genotype. Crossings of monoebrids and the Mendelian principle of segregation. Crossings of diibids and the Mendelian principle of independent assortment. Multiple alleles. Incomplete dominance and codominance. Interaction between modified Mendelian genes and relationships. The epistasis. Lethal alleles. Environment and gene expression. Mendelian transmission characters in man. Analysis of genealogical trees. Statistical analysis of genetic data: the chi-quadrato test.
Chromosomal theory of inheritance. Mitosis. Meiosis. The genetic meaning of Meiosis. The chromosomes of sex. Inheritance linked to sex. The determination of sex. Analysis of characteristics related to sex in humans.
Association. The genical association. Complete and incomplete concatenation. Recombination between genes and role of exchange between chromosomes. Construction of genetic maps.
The genomes of current organisms. Eukaryotic chromosomes. The cariotype.
The mutations. Somatic and germ mutations. Point mutations. The chromosomal mutations of structure and number: classification, methods of formation and genetic and phenotypic consequences. Notes on all-poliploidia and auto-poliploidia. The chemical bases of the mutations. Induced mutations. Physical, chemical and biological mutagenic agents. Environmental mutagenesis and mutagenesis tests (notes). Mutations and their role in the evolution of genes and their products.
The central dogma the main functions of the DNA: replication, transcription and translation. The genetic code: definition and property. Structural, functional and genetic definition of gene. The procarial and eukaryotic genes: general structure and genomic organization. Eukaryotic genes: dimension and formation of interrupted genes. Gene families. The regulation of gene expression: definition and adjustment models. Regulation in procarial and eukaryotes.

Basic methods for DNA analysis. Preparation of the genomic DNA, PCR, enzyme fragmentation, electrophoresis, sequencing. RFLP and their use in diagnostics.

Class exercises: Mendelian genetics. Calculation of the probability applied to genetics. Analysis of genealogical trees to identify the inheritance model. Construction of genetic maps. Analysis of the human cariotype.

Textbook Information

  • Binelli, Ghisotti e altri. GENETICA. EdiSES, Napoli

  • Russel. GENETICA: UN APPROCCIO MOLECOLARE. Pearson Italia, Milano.

  • Griffiths e altri. GENETICA: PRINCIPI DI ANALISI FORMALE. Zanichelli, Bologna.

Course Planning

 SubjectsText References
1Introduction to genetics TESTO 1: cap 1 - TESTO 2: cap 1 - TESTO 3: cap 1  p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
2Mendelian genetics; crossings between dihydrides and trihydrides. Principle of segregation and independence. TESTO 1: cap. 3 - TESTO 2: cap 11 (pagg. 263- 284)- TESTO 3: cap 2 (pagg. 29- 52) cap 3 (pagg. 85- 97) p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
3Meiosis and mitigous compared. Meiosis and the link with Mendel's laws TESTO 1: cap. 2 - TESTO 2: cap 12 (pagg. 285-296) - TESTO 3: cap 2 (pagg. 81-83) cap 3 (pagg. 98-106) p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
4Pedigrees TESTO 1: cap. 4 (pagg. 62-69) e cap. 5 (pagg. 83-91) - TESTO 2: cap. 11 (pagg. 283-289) e cap. 12 (pag. 317-322) - TESTO 3: cap. 2 e cap. 3. p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
5Allellical interactions and interactions between genes TESTO 1: cap. 4 (pagg. 52-61), cap. 7 - TESTO 2: cap 13 - TESTO 3: cap 6 p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
6Chromosomal theory of inheritance, Morgan experiments and inheritance linked to sex TESTO 1: cap. 5 - TESTO 2: cap 12 (pagg. 297-313) - TESTO 3: cap 2 (pagg. 52-72) p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
7Genical association, concatenation and recombination. Genetic maps. TESTO 1: cap. 6 - TESTO 2: cap 14 - TESTO 3: cap 4 p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
8Organization of genetic material into chromosomes. The genome TESTO 1: cap. 9 - TESTO 2: cap 2 - TESTO 3: cap 7 (pagg. 259-269) p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
9DNA replication in vivo and in vitro TESTO 1: cap. 9, cap. 15 (pagg. 376-385) - TESTO 2: cap 3 - TESTO 3: cap 7 (pagg. 269-288) p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
10Transcription in prokaryotes and eukaryotes TESTO 1: cap. 10 - TESTO 2: cap 5 - TESTO 3: cap 8 p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
11The genetic code and the protein synthesis TESTO 1: cap. 11 - TESTO 2: cap 6 - TESTO 3: cap 9 p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
12Mutation formation mechanisms. The mutagens. Point mutations. Genetics of tumors. TESTO 1: cap. 12 - TESTO 2: cap 7 (pagg. 115-135) - TESTO 3: cap 16 p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
13Chromosomal mutations TESTO 1: cap. 14 - TESTO 2: cap 16 - TESTO 3: cap 17 p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
14gene expression in prokaryotes and eukaryotes. Genes involved in development and differentiation TESTO 1: cap. 16, cap. 17 - TESTO 2: cap 17 cap 18 (pagg. 435-443) - TESTO 3: cap 11 (pagg. 393-408 e 419-424) cap 12 (pagg. 427-432 e 439-444) p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }
15Polymerase chain reaction (PCR), restriction enzymes, electrophoresis and RFLP TESTO 1: cap. 20 - TESTO 2: cap 10 (pagg. 235-238 e 242-249) - TESTO 3: cap 10 - p { margin-bottom: 0.25cm; direction: ltr; line-height: 115%; text-align: left; orphans: 2; widows: 2; background: transparent }

Learning Assessment

Learning Assessment Procedures

Written test with multiple response questions and open answer. After the correction, the candidate who has correctly answered at least two thirds of the questions will be convened for a discussion on the written test. The score will be overall.

Examples of frequently asked questions and / or exercises

Two -point crossing. Three -point crossing. Example of pedigree with dominant autosomal segregation. The dimension of the genome. The structure of procariotic and eukaryotic genes.
VERSIONE IN ITALIANO