#Question id: 11777
#Unit 10. Ecological Principles
Some of the species of stalk-eyed flies are sexually dimorphic, with males having eye stalks up to twice as long as those in females. This gender difference in eye span results from selection by females on the expression of this trait in males, a process called __________.
#Question id: 5219
#Unit 11. Evolution and Behavior
What is it that can be duplicated in a genome?
#Question id: 7705
#Unit 9. Diversity of Life Forms
Based on this tree, which statement is
correct?
#Question id: 7197
#Unit 5. Developmental Biology
Following statements are regarding to PAR proteins and the establishment of polarity during early development in nematodes.
A. The internal cytoplasm contains PAR-3, PAR-6, and PKC-3, and the cortical cytoplasm contains PAR-2 and PAR-1.
B. PAR-3 and PAR-6, interacting with the protein kinase PKC-3 are uniformly distributed in the cortical cytoplasm. PKC-3 restricts PAR-1 and PAR-2 to the internal cytoplasm by phosphorylating them.
C. Once PAR-1 is in the cortical cytoplasm, it phosphorylates PAR-3, causing PAR-3 (and its binding partner, PKC-3) to leave the cortex.
D. During first cleavage, the metaphase plate is closer to the posterior, and the fertilized egg is divided into two cells, one having the anterior PARs (PAR-1 and PAR-2) and one having the posterior PARs (PAR-3 and PAR-6).
Which of the following statements are correct?
#Question id: 10789
#Unit 6. System Physiology – Plant
Trans-cinnamic acid, p-coumaric acid, and their derivatives are simple phenolic compounds known as