Your tongue does NOT grow hair because
A) skin cells have extra DNA that codes for hair proteins.
B) the genes for hair proteins have been deleted from the cells of your tongue.
C) saliva prevents hair from growing.
D) different genes are expressed in different tissues.
D
You might also like to view...
You find a protist that is unicellular, heterotrophic, and non-flagellated. It has two nuclei of different
sizes. You correctly conclude that this organism is a(n)
a. kinetoplastid. b. plasmodial slime mold. c. ciliate. d. foraminiferan. e. ameobozoan.
Based upon these laboratory results, what microbe do you predict is causing Caitlyn's infection? Explain. What two chemical tests would you perform next to verify your answer ?
What will be an ideal response.
A(n) _____disease is an infectious disease that does not arise from host to host transmission
Fill in the blank(s) with the appropriate word(s).
The FtsZ protein is present in prokaryotes and in chloroplasts. The protein is structurally and functionally similar to tubulin proteins of eukaryotic cells. Which of the following is a likely conclusion to draw from this information?
(A) FtsZ and tubulin proteins were both present in a common ancestor. (B) Microtubules are involved in the mechanics of photosynthesis. (C) Tubulin genes are evolutionarily derived from the gene that codes for the FtsZ protein. (D) The sequences of the genes encoding the FtsZ and tubulin proteins are identical.