#Question id: 355
#Unit 1. Molecules and their Interaction Relevant to Biology
Measurements show that the pH of a particular lake is 4.0. What is the hydroxide ion concentration of the lake?
#Question id: 3266
#Unit 11. Evolution and Behavior
One species mates at the season when daylight is increasing from 13 hours to 13 hours, 15 minutes; another species mates at the season when daylight is increasing from 14 hours to 14 hours, 15 minutes. The isolating mechanism is
#Question id: 670
#Unit 1. Molecules and their Interaction Relevant to Biology
The distance along a helix axis for one complete turn is called the ________.
#Question id: 19044
#Unit 13. Methods in Biology
#Question id: 4790
#Unit 8. Inheritance Biology
The F2 genotypes of two independently assorting gene A and B with complete dominance result in a 9 : 3 : 3 : 1 ratio of phenotypes if there is no interaction between the genes. Following modify phenotypic ratio of 9:3:3:1 given as following table (p - phenotype) Which of the following correct matching of gene interaction and their deviated phenotype ratio?