Name the single individual whose work in the mid-1800s contributed to our understanding of the particulate nature of inheritance as well as the basic genetic transmission patterns. With what organism did this person work?
A) Thomas Hunt Morgan; Drosophila
B) George Beadle; Neurospora
C) Calvin Bridges; Drosophila
D) Gregor Mendel; Pisum sativum
E) Boris Ephrussi; Ephestia
Answer: D
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Polypeptides (proteins) are composed of amino acids as ________ are composed of DNA.
A. genes B. RNA C. proteomes D. lipids E. metabolites
If a stretch of human double stranded DNA contains 47% G and C bases, then ____
a. it contains 47% A and T bases b. there are more pyrimidines than purines c. there are more purines than pyrimidines d. it contains 53% A and T bases
e. there are no genes in this stretch of DNAInsect hormones and their receptors _____
A) act independently of each other B) are a focus in pest control research C) utilize cell-surface receptors only D) are active independently of environmental cues
Which of the following organisms belongs to the group represented in box 1?
 A) giraffe B) tree C) decomposing bacteria D) leopard