German scientist Carl Correns found that the inheritance of variegated color on the leaves of certain plants was determined only by the maternal parent. What phenomenon explains this pattern of inheritance?

#Question id: 33475

#Unit 2. Cellular Organization

With pulsed-field gel electrophoresis, which can separate DNA molecules up to 107 bp in length. The results of pulsed-field gel electrophoresis of the DNA from the yeast Saccharomyces cerevisiae are shown in Figure. How many chromosomes does S. cerevisiae have?

#Question id: 9607

#Unit 9. Diversity of Life Forms

The common housefly belongs to all of the following taxa. Assuming you had access to textbooks or other scientific literature, knowing which of the following should provide you with the most specific information about the common housefly?

#Question id: 7103

#Unit 5. Developmental Biology

Patterning of the Xenopus mesoderm along the dorso-ventral axis involves an antagonistic relationship between chordin and BMP-4. Is there an analogy here to dorso-ventral patterning in the Drosophila embryo?

#Question id: 7081

#Unit 5. Developmental Biology

In xenopus, If either Nodal or Vg1 signaling is blocked, there is:

#Question id: 19129

#Unit 12. Applied Biology