Which geologic periods are known as the “Age
of Reptiles”?
a. Devonian and Silurian
b. Jurassic and Cretaceous
c. Permian and Triassic
d. Triassic and Jurassic
e. Carboniferous and Permian
B
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In a study of concordance, a sample of identical twins were evaluated for adult-onset diabetes. The data below were collected for this trait:
(1) in 36 identical twin pairs, both showed adult-onset diabetes (2) in 40 identical twin pairs, only one showed adult-onset diabetes (3) in 336 identical twin pairs, neither showed adult-onset diabetes Items (1) and (2) can be used to calculate concordance as follows: 36/(36 + 40) x 100 = 47%. A. true B. false
The anticancer drug Gleevec works by blocking the ____________________-binding site of a protein,
which would otherwise activate a signal protein to induce cell division. Fill in the blank(s) with the appropriate word(s).
The function of regulatory transcription factors must be modulated to ensure that genes are turned on ________
Fill in the blank(s) with the appropriate word(s).
Fertilization of plant gametes produces a ________________.
A. zygote B. gametophyte C. spore D. meiospore E. multicellular haploid plant