What technique can be used to detect genetic defects in early stage embryos, prior to implantation?
a. genetic screening
b. chorionic villus sampling
c. PGD
d. amniocentesis
e. micromanipulation
c
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You make a knockout of a gene involved in neurological development, and find that the mice have malformed semicircular canals. Instead of being orthogonal (at right angles) to each other, they are parallel. What aberrant behavior might you see in these mice?
A. overeating B. falling over C. not startling to sudden noise D. unable to respond to a call to locate another mouse E. low muscle tone 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 semicircular canals? 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?
A(n) ____ species resides where it evolved, and is found nowhere else on Earth
a. invasive b. endemic c. endangered d. exotic e. persistent
Eukaryotic cells contain membrane bound _____________________ in their cytoplasm
Fill in the blank(s) with the appropriate word(s).
Energy that is useable and organized is classified as having ____
a. low energy b. low entropy c. low enthalpy d. high entropy e. high energy