The first complete plant genome to be sequenced was that of
a. Phaseolus vulgaris (kidney bean).
b. Arabidopsis thaliana (thale cress).
c. Zea mays (corn).
d. Capsella burse-pastoris (shepherd's purse).
e. Oryza sativa (rice).
B
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Staphylococcus aureus is the causative agent of
A. bacterial vaginosis. B. puerperal fever. C. toxic shock syndrome. D. gas gangrene. E. bacterial vaginosis AND puerperal fever.
Which of the following is NOT one of Mendel's hypotheses to explain the results of his P, F1 and F2
crosses?
a. Adult plants carry a pair of genes that will determine the inheritance of each allele. b. If an adult plant has two different alleles, one is dominant over the other. c. Adult plants always have traits that are governed by a single pair of alleles, but the number of possible alleles varies with each trait. d. The pairs of alleles separate in the formation of gametes so that each gamete gets one allele of the pair. e. If an adult plant has two different alleles, one is recessive to the other.
In a cell membrane, the phospholipid heads are
a. hydrophobic b. nonpolar c. dissolved in the cell’s water d. sandwiched between the phospholipid tails e. formed by fatty acids
Alternative RNA splicing
A. can allow the production of similar proteins from different RNAs. B. can allow the production of proteins of different sizes and functions from a single mRNA. C. is a mechanism for increasing the rate of transcription. D. increases the rate of transcription. E. is due to the presence or absence of particular snRNPs.