#Question id: 2724
#Unit 2. Cellular Organization
When DNA is compacted by histones into 10 nm and 30 nm fibers, the DNA is unable to interact with proteins required for gene expression. Therefore, to allow for these proteins to act, the chromatin must constantly alter its structure. Which processes contribute to this dynamic activity?
#Question id: 4738
#Unit 8. Inheritance Biology
Red kernel color in wheat results from the presence of at least one dominant allele of each of two independently segregating genes . Kernels on rr bb plants are white, and the genotypes R— bb and rr B— result in brown kernel color. Suppose that plants of a variety that is true breeding for red kernels are crossed with plants true breeding for white kernels produced F1 were allowed to selfing .what are F2 phenotype ratio ?
#Question id: 14981
#Unit 2. Cellular Organization
#Question id: 11562
#Unit 7. System Physiology – Animal
The relationship between the insect hormones ecdysteroid and PTTH is an example of ________.
#Question id: 12749
#Unit 13. Methods in Biology