Two genes located near each other on the same chromosomes are said to be ________.
a. linked
b. nearby
c. synaptic
d. at the same locus
a. linked
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While mapping two genes in Drosophila, you observe 30 recombinants among 200 total offspring. What is the distance between these genes?
A. 30 map units B. 6.67 map units C. 200 map units D. 15 map units
Researchers studying olfactory and taste receptors have stumbled upon an unusual phenomenon. These receptor proteins are sometimes expressed in other animal tissues in addition to the nose or tongue. For example, the sweet taste receptor T1R2 is expressed in the pancreas. Suggest the best possible explanation for these findings.
A. Damaged receptors are recycled by the body and end up in waste-disposal organs. B. Control of protein expression is imperfect. As long as a receptor doesn't interfere with organ function, expression will not be selected against. C. Chemoreceptors bind molecules that help the body sense and respond to internal phenomena, such as sugar levels in the blood. D. Techniques used to visualize protein expression are imperfect and may lead to false positive results. 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 taste receptors? 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?
Letter “B” designates the ____, which allowed for an increase in human population growth
a. Bubonic plague b. domestication of plants and animals c. industrial and scientific revolutions d. discovery of America e. emergence of agriculturally based urban societies
Chromosomes arranged by pairs according to their size, shape, and general appearance in mitotic metaphase.
What will be an ideal response?