RoundUp-resistant plants are designed to ________
A) improve nutritional value of crops
B) make crops heat-resistant
C) make crops cold-resistant
D) increase vitamin B content
E) provide resistance against herbicides
E
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The oxic atmosphere created conditions that led to the evolution of various new metabolic pathways, such as
A) sulfide oxidation. B) nitrification. C) iron oxidation. D) sulfide oxidation, nitrification, and iron oxidation.
Echinoderms are classified as Bilateria, but although they start out as bilateral larvae, they change into radially symmetrical adults. You might hypothesize that their genes controlling the development of radial symmetry are
A. different from those controlling development of symmetry in all other radially symmetrical animals. B. similar to genes controlling body form in Porifera. C. similar to genes controlling body form in Ctenophora. D. similar to genes controlling body form in Lophotrochozoa. E. similar to a common set of genes controlling body form in Ctenophora and Lophotrochozoa.
In chelicerates, the abdomen and telson are fused
Indicate whether the statement is true or false
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.