What part of a hair is most likely to yield useful dna evidence?

Mario performed an experiment to determine if photosynthesis was affected by the amount of light that a plant received. what could he have done to increase the validity of his data? reduce the number of plants. remove the 1 hour group. add a 0 hours control. measure the oxygen in liters

Which sequence correctly shows the path of carbon dioxide during repiration?

28. how many linkage groups will be formed by homogametic organism with 28 chromosomes?