Genetička informacija je pohranjena u molekulima nukleinskih kiselina.
| Concept | What to Remember | Quick Mnemonic / Visual | |---------|------------------|--------------------------| | | Monohybrid cross → 3:1 (dominant : recessive) Di‑hybrid cross → 9:3:3:1 | “3‑to‑1” for single‑gene, “9‑3‑3‑1” for two‑gene. | | Punnett Square | 2×2 for monohybrid, 4×4 for dihybrid. Fill squares with gamete combinations, then count phenotypes. | Draw a grid ; treat each axis as “father’s” vs. “mother’s” gametes. | | Law of Segregation | Each parent contributes one allele per gene to the offspring. | Think “pair → split” (like a pair of shoes separating into single shoes). | | Law of Independent Assortment | Genes on different chromosomes (or far apart) assort independently. | “Shuffle deck” – each gene is a different card. | | DNA → RNA → Protein | Central Dogma : Replication → Transcription → Translation. | “Copy → Read → Build” (copy DNA → read as mRNA → build protein). | | Codon Table | 64 codons → 20 amino acids + STOP signals. Remember that UUU = Phe , AUG = Met (Start) . | Use a color‑coded chart ; group by first base for quicker lookup. | | Hardy‑Weinberg Equation | p² + 2pq + q² = 1 (genotype frequencies) p + q = 1 (allele frequencies) | “p‑square + 2pq + q‑square = 1” – think of a pie split into three slices. | | Mutation Types | Point (substitution), frameshift (insertion/deletion), repeat expansion , chromosomal (translocation, inversion). | “SIFT” – Substitution, Insertion/Deletion, Frameshift, Translocation. | | Epigenetics | DNA methylation & histone modification → reversible gene silencing. | “Methyl = mute” – methyl groups mute gene expression. | | CRISPR | Cas9 + guide RNA → precise DNA cut → edit or disable gene. | “Cut‑paste” in a genetic editor. | principi genetike djelic pdf
In conclusion, the principles of genetics are essential in understanding how living organisms inherit traits from their parents and how these traits are expressed. Mendel's laws, DNA structure, and gene expression are fundamental concepts in genetics. The applications of genetics are vast and have the potential to revolutionize various fields, including medicine, agriculture, and biotechnology. Fill squares with gamete combinations, then count phenotypes
A: No. There is no official English translation. The value of this book is its native language instruction. If you need English, look for Principles of Genetics by Snustad or Simmons. | | Law of Segregation | Each parent
Primjena Hardi-Vajnbergovog zakona, uticaj mutacija, migracija i selekcije na genetičku ravnotežu populacije.