The only situation in which a person can survive without one of a pair of chromosomes is:
a. There is no situation in which a person can survive without one of a pair of chromosomes.
b. "Super males," Y_, in which a male has only one sex chromosome.
c. "Metafemales," X_, in which a female has only one sex chromosome.
d. Turner syndrome, X_, in which a female has only one sex chromosome.
e. Monosomy 21, in which a person has only one copy of chromosome 21.
Ans: d. Turner syndrome, X_, in which a female has only one sex chromosome.
You might also like to view...
Which cloning vector should be used to express a 500-kb DNA fragment in Saccharomyces cerevisiae?
A. ?1059 B. BAC C. YAC D. pUC19
If genetically engineered bees could express a receptor for TNT in their olfactory neurons, what type of receptor would the TNT receptor be?
Honeybees have an incredible ability to distinguish thousands of different odorant molecules, using their large repertoire of olfactory receptors. A wide variety of different types of chemicals can be detected as odorants -- they simply require olfactory neurons with a receptor that can bind the chemical and transduce that stimulus into a receptor potential. A. chemoreceptor B. mechanoreceptor C. electromagnetic receptor D. it is a novel type of receptor Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about olfaction? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Which of the following is true regarding proto-oncogenes?
a. They are positive cell-cycle regulators. b. They are negative cell-cycle regulators. c. They are down-regulators of the cell cycle. d. They play no role in the cell cycle.
Which of the following describes the function of the myelin sheath?
a. insulating axons b. protecting brain tissue c. transmitting chemical signals d. connecting the cerebral hemispheres