A mutation of an autosomal recessive trait can remain undetected for generations
a. True
b. False
Indicate whether the statement is true or false
True
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If both homologous chromosomes of each pair exist in the same nucleus, that nucleus is
(a) diploid. (b) unable to undergo meiosis. (c) haploid. (d) none of the above.
Which of the following is NOT true concerning homeotic genes?
A. They encode transcription factors. B. They are the only types of genes that contain a region of DNA called the homeobox. C. They are found in clusters called complexes. D. A portion of the proteins they encode can bind DNA. E. They activate developmental genes.
Fusion of sperm and egg nuclei, producing a zygote that develops into a new individual.
What will be an ideal response?
When you entered the room, there was a faint smell of smoke, but after about an hour, you no longer noticed the smell. What happened?
A. nociception B. sensory reception C. sensory adaptation D. mechanoreception E. thermoreception