Author: Study Clue

In a dihybrid cross (AaBb × AaBb), the probability of offspring being aabb is A 1/4 chance B 1/8 chance

When a monohybrid F2 shows 3:1 phenotype ratio, the F1 genotype must be A TT genotype B tt genotype C

In a monohybrid F2 generation, the recessive phenotype appears because A Dominant allele lost B Traits always blend C Genes

In Mendel’s pea study, “true-breeding” plants show A Mixed traits always B Same trait every generation C Only recessive traits

Mendel mainly used which plant for heredity experiments A Maize plant B Wheat plant C Rice plant D Pea plant

The stomach enzyme that acts best at very low pH and starts protein digestion is A Trypsin B Amylase C

In the small intestine, the enzyme that starts protein digestion by activating other zymogens is A Trypsin B Enteropeptidase C

In the stomach, pepsinogen is converted to pepsin mainly by A Hydrochloric acid B Bile salts C Pancreatic lipase D

The intestinal enzyme that splits lactose into monosaccharides is A Sucrase B Maltase C Pepsin D Lactase Explanation Lactase is

In human digestion, salivary amylase mainly begins breakdown of A Proteins B Fats C Nucleic acids D Starch Explanation Salivary