Which of the following is an example of sex-limited inheritance?
A) cat fur length
B) hemophilia
C) beard formation in humans
D) hair color in humans
E) human baldness
Answer: C
You might also like to view...
In the polymerase chain reaction (PCR) the DNA is first heated to break the hydrogen bonds between the two polynucleotide strands, producing two single-stranded molecules that will serve as templates. Which of the following choices would be the second step in PCR?
1.The mixture is cooled and primers bind to complementary DNA regions. 2.Taq polymerase synthesizes a complementary DNA strand for each single-stranded molecule. 3.The mixture is heated and primers bind to complementary DNA regions. 4.The DNA is cut into fragments with a restriction enzyme. 5.The DNA is stained.
What part of the brain sorts incoming information into categories before relaying it to the cerebral cortex?
What will be an ideal response?
Which of the following is not classified as a domain of life?
A. protists B. eukarya C. archaea D. bacteria E. Protists, eukarya, archaea, and bacteria are all domains of life.
Your research project involves the characterization of a particular signal transduction pathway. Specifically, you have been studying a receptor tyrosine kinase and protein X, which initiates downstream events. You are certain that protein X is part of the signal transduction pathway, but have been unable to identify a direct protein-protein interaction between the receptor tyrosine kinase and
the protein X. What should you do next in your attempt to identify a link between the receptor tyrosine kinase and protein X? A. Try to identify a coactivator protein. B. Try to identify proteins that act downstream of protein X. C. Try to identify an adapter protein that can interact with both the receptor and protein X. D. Confirm the interaction between the receptor tyrosine kinase and its ligand.