Changes in Bmp4 protein expression levels have widespread impact on developmental outcomes. It is most likely that Bmp4 is a
A. ribosomal protein.
B. DNA binding protein.
C. lipid synthesis enzyme.
D. cytoskeletal protein.
B
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Consider the transition from water to land for plants. Reproduction that was not tied to water was an important adaptation allowing plants to exploit truly terrestrial habitats. Animals faced the same challenge when moving from water to land
What was the single most important adaptation that led to the uncoupling of reproduction and the need for water? A. amniotic egg B. internal fertilization C. loss of flagellated sperm
The insecticide parathion is detoxified in the body by the enzyme paraoxonase, which has two alleles (Q and R). A person with the genotype Q/Q living in an area of high organophosphate use would be expected to _____
1.rapidly metabolize parathion 2.be completely unable to metabolize parathion 3.be extremely sensitive to parathion poisoning 4.metabolize parathion more rapidly in infancy than during adulthood
Activated B cells differentiate into:
What will be an ideal response?
What are the chances that a woman who is color blind will have a son who is color blind?
A. 0 percent D. 75 percent B. 25 percent E. 100 percent C. 50 percent