The Otariidae characteristics include
a. external ears.
b. swimming with hind limbs.
c. swimming with fore limbs.
d. both a and c.
e. both a and b.
D
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Which of the following structures will self-assemble?
A) ribosomes B) nucleosomes C) translocons D) huntingtin E) all of the above
Which morphological trait evolved more than once in animals, according to the phylogeny based on DNA sequence data found in the figure above?
A) coelom B) bilateral symmetry C) segmentation D) tissue E) protostome development
do nitrogen-fixation nodules contain large amounts of leghemoglobin?
A. It helps transport oxygen to the bacteria. B. The nitrogenase enzyme interacts with the iron in the leghemoglobin. C. The leghemoglobin helps break the triple bond of N2. D. It stimulates the Nod factors. E. It prevents carbon dioxide from inhibiting the nitrogenase enzyme.
A physician reports to you the lab results in identifying your genetic condition relating to your skin health. "DNA fingerprint" information indicates that you have two different versions of the allele for a particular skin protein, and this is called Select one:
a. heterozygous. b. homozygous. c. dominant. d. homologous. e. recessive.