Dihybrid Cross Practice Problems

Directions: Complete the following Dihybrid Cross problems. Identify the gametes from each parent. Complete a Punnett Square for the cross Identify the genotypes and phenotypes for the potential offspring. Find the phenotypic ratio for the potential offspring. Betta (Chinese/ Siamese fighting fish) Characteristics [Upper Case= Dominant & Lower Case= Recessive] B= Blue Tail                                                         b= black…

Titration Lab: NaOH with Standardized solution of KHP

Aim To standardize a sodium hydroxide (NaOH) solution against a primary standard acid [Potassium Hydrogen Phthalate (KHP)] using phenolphthalein as indicator. Variables Independent variables Mass of KHP (mKHP) Volume of KHP solution Dependent variables Volume of NaOH added [since the colour change will not happen at exactly the same volume of NaOH added (VNaOH)] Controlled…

Global Warming, Sea Level Rise and Bangladesh

The global average air and ocean temperatures have been gradually increasing from 1880-2010 (Fig.1) This increase in temperature melted a massive amount of ice and snow globally which ultimately, caused the global average sea level to also rise (Fig.2). The Earth’s average surface temperature rose by 0.74 ± 0.18°C over the period 1906–2005.  Global average…

Histology: Labelled Slides

Aorta Basophils Cardiac Muscle Cardiac Muscle Longtudinal Cerebellar Cortex Cerebral Cortex Spinal Cord Eosinophils Epiphyseal plate Femoral Artery Femoral Vein Howship’s lacunae Jejunum lamina propria Liver Lymph node Lymphocyte Monocyte Spinal cord (silver) Neutrophil Pacinian corpuscle Peripheral Nerve Peripheral Nerve 2 Respiratory Epithelium Spinal cord (silver) 2 Simple Cuboidal Epithelium Simple Columnar Epithelium Skeletal Muscle…