ulum, typical questions in Section 14.1 include: Genetics and Inheritance Describe Mendel’s laws of inheritance and give examples. Explain the difference between homozygous and heterozygous genotypes. Interpret Punnett square diagrams to predict offspring genotypes and phenotypes. Gene
ments. References Watson, J. D., & Crick, F. H. C. (1953). Molecular structure of nucleic acids: A structure for deoxyribose nucleic acid. Nature, 171(4356), 737-738. Alberts, B. et al. (2014). Molecular Biology of the Cell. Garland Science. Watson, J. D. (1968). The double h
istae, increasing surface area for metabolic reactions. The mitochondria contain their own DNA, enabling some autonomous replication, and play a crucial role in energy production, apoptosis, and metabolic regulation. Question 2: Explain the process of natural selecti
gets. Juxtacrine: Signaling occurs through direct contact between cells. Key Components of Signaling Pathways: Receptors: Detect specific signaling molecules (ligands). Second Messengers: Amplify signals within the cell (e.g., cAMP, calciu
logy reviews emphasize the molecular basis of heredity. DNA Double Helix : Composed of two antiparallel strands of nucleotides, with complementary base pairing (A-T, G-C). Genes : Segments of DNA that encode proteins.
enetics: Constructs evolutionary trees (phylogenies) based on genetic similarities and differences. Phylogenetics and Cladistics Phylogenetics studies the evolutionary relationships among species. Cladistics, a method within
Hormonal Signaling in Plants Plant hormones are central to mediating responses. Key hormones include: Auxins: Regulate cell elongation, apical dominance, and tropisms. Gibberellins: Promote stem elongation, seed germination, and flowering. Cyt
ve stage, growing roots, stems, and leaves. Vegetative Growth to Reproduction During this phase, the plant focuses on increasing in size and preparing for flowering. Growth Phases Vegetative growth invo
sms to complex terrestrial species. Recognizing this evolutionary pathway helps in understanding the diversity of plant life and the adaptations that allowed plants to thrive on land. Origins of Plants Plants originated fro
