Which of the following statements about the cancer-causing BRCA1 allele is FALSE?
A. It has evolved under strong negative selection in humans
B. Possession of the allele results in a greater than 50% chance of developing breast cancer
C. The dN/dS >1
D. One likely hypothesis for its presence is that also is important in combating viral infections
Answer: A. It has evolved under strong negative selection in humans
You might also like to view...
DNA replication is usually unidirectional
Indicate whether this statement is true or false.
The notion of orthogenesis is no longer supported because we now know that evolution proceeds as an ongoing
process of dynamic adjustment, not toward any fixed goal.
a. True b. False
Millions of years ago, the activity of which cellular organelle would have been dependent upon the
presence of cyanobacteria? a. Golgi b. nucleus c. ribosome d. endoplasmic reticulum e. mitochondrion
David's family is upgrading their water system from their well into their house. They decide to add a UV light system. Which type of UV radiation is probably emitted by the system?
A) UVC B) UVA C) UVB D) UVD