DNA Structure
DNA (Deoxyribonucleic Acid) is a double-stranded molecule that contains the genetic information of an organism. Watson and Crick (1953) proposed the double helical model of DNA. DNA is a macromolecule made up of helically twisted two antiparallel strands i.e., one strands run in the 5’ to 3’ direction (5’→3’) while the other in 3’to 5’direction (3’→5’). It lies in opposite orientation with respect to each other with 3’-hydroxyl terminus of one strand opposite the 5’-phosphate terminus of the 2nd strand. Each deoxyribonucleotide is made up of an outer phosphoric acid, middle deoxyribose sugar and central nitrogenous base (A, T, C and G). Purine and pyrimidines are two types of Nitrogen bases. Adenine and Guanine falls under purine base while Cytosine and Thymine are pyrimidine base.
Genetics and Heredity Unit
Each trait that we possess has two alleles that code for it. One allele is from the female parent and one allele is from the male parent. The allele may be dominant, written with a capital letter, and always expressed if present. The allele may be recessive, written with a lowercase letter, and expressed only if both alleles are recessive.Genetics Vocab Sort - GenotypePhenotypeAlleleHeterozygousHomozygousDominantRecessivePunnett SquareProbabilityGeneTraitHeredity
TPT
Cell Cycle Stations
These Cell Cycle Stations is a fun and engaging way to get students up out of there desk and learning about the cell cycle! This can be used at any point in a cell cycle unit to supplement, re-teach, or review. Students will complete their student sheet by rotating through the six stations analyzing graphics, charts, and more!Topics include:Phases of the cell cycleChromosome activitySubphases of interphasesCancer in the cell cycleThis item contains:6 Cell Cycle Stations (Color)6 Cell Cycle Stati
TPT
