#Question id: 8720
#Unit 9. Diversity of Life Forms
The question refers to the following table, which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species. Each part is numbered to indicate its distance from the promoter (for example, Intron I is the one closest to the promoter). The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A.
Which of these four gene parts should allow the construction of the most accurate phylogenetic tree, assuming that this is the only part of the gene that has acted as a reliable molecular clock?
#Question id: 28539
#Unit 5. Developmental Biology
A gene that lacks the intracellular kinase domain and depend on interaction with other intracellular proteins, is called as___
#Question id: 11459
#Unit 7. System Physiology – Animal
Partial or complete loss of hearing (deafness) can
be caused by damage to the ________.
I) axons of the neurons associated with each hair cell
that carry information to the brain
II) hair cells (the sensory receptors) in the cochlea
III) tympanic membrane, or eardrum
#Question id: 1000
#Unit 1. Molecules and their Interaction Relevant to Biology
Which of the following is (are) true of the B oxidation of long-chain fatty acids?
1. The enzyme complex that catalyzes the reaction contains biotin.
2. FADH2 serves as an electron carrier.
3. NADH serves as an electron carrier.
4. Oxidation of an 18-carbon fatty acid produces six molecules of propionyl-CoA.
5. Oxidation of a 15-carbon fatty acid produces at least one propionyl-CoA.
#Question id: 2954
#Unit 2. Cellular Organization
Cyclin concentrations are highest during which periods of the cell cycle?