Birds that are known to eat the chicks of other birds and even their own chicks are:
a. avocets.
b. terns.
c. curlews.
d. gulls.
e. penguins.
D
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Calvin Bridges, an associate of Thomas Hunt Morgan's, found further evidence that genes were located on chromosomes. Which of the following is not a component of his study?
A. He crossed white-eyed females (XwXw) with red-eyed males (XWY). B. The F1 progeny were mostly the red-eyed males and white-eyed females expected. C. A few rare white-eyed females and red-eyed males were observed, which he called primary exceptionals. D. He proposed that the rare white-eyed females were the result of abnormal chromosome number. E. Abnormal chromosome number was a result of nondisjunction in the female fly.
In the 1980s, when researchers began seeking gene variants that caused or contributed to bipolar disorder, it seemed that each extended family had its own mutations. These findings, looking back, most likely mean that
A) bipolar disorder results from imitating the behavior of an affected family member. B) many gene variant combinations cause or contribute to bipolar disorder, but only a few such variants are seen in any one family. C) many people fake the symptoms of bipolar disorder. D) bipolar disorder reflects changes in gene expression, but not in mutations.
What technique can be used to investigate murders, determine paternity or maternity, and study relationships with ancient DNA?
a) DNA profiling b) human genome project c) genetic testing d) GMO
Which of the following statements is FALSE regarding TFIID?
a) It aids in initiation of transcription. b) It is a transcriptional activator protein. c) It contains a TATA binding protein. d) It binds to the core promoter. e) It binds to the TATA box.