A trait with a heritability value of 0.75 indicates that 75% of the phenotypic variability seen in the population is
caused by ____ of the population.
a. genetic differences
b. environmental differences
c. concordance
d. epigenetic effects
e. the equal contribution of the genotype and the environment
a
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If one were to double the amount of enzyme in a reaction with an initial ?G of -5 kcal/mole, what would the ?G be?
A. -5 kcal/mole B. -10 kcal/mole C. -20 kcal/mole D. +5 kcal/mole E. +10 kcal/mole
Answer the following statements true (T) or false (F)
1. When lactose becomes available the genes encoding ?-galactosidase and lactose permease are upregulated in E. coli. 2. Different globin polypeptides are expressed at similar levels during the embryonic and fetal stages of mammalian development. 3. Bacteria can regulate gene expression by controlling the rate at which mRNA is translated into protein. 4. Small effector molecules directly bind the DNA they regulate.
All of the following features are true of Anthropoids except
A. they include monkeys, apes, and humans. B. almost all were diurnal. C. opposable thumbs. D. living in groups with complex social interactions. E. changes to eye design and increase in brain size.
In the Hershey and Chase experiment designed to determine the molecule of heredity, what was radiolabeled with 35S?
A) protein B) DNA C) RNA D) rRNA