Thanks to the Human Genome Project, we now know that humans possess approximately how many
genes?
a. 100,000
b. 50,000
c. 21,500
d. 10,000
e. 5,000
C
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Some protists live in "houses" constructed exclusively of organic molecules. These "houses" are called:
A. calcium carbonate skeletons. B. silica skeletons. C. cell walls. D. tests. E. None of the answers options is correct.
MacConkey agar is
A. a selective agar. B. a differential agar. C. a selective and differential agar. D. used to distinguish between bacteria by the type of hemolysis observed.
Fertilization results in formation of _____________ within the uterine tube.
A. diploid gamete B. diploid zygote C. haploid zygote D. haploid gamete
Transgenic organisms
A) contain cells from other organisms. B) contain genetically engineered microbes. C) are the same as clones. D) contain genes from other organisms. E) have genomes that have been sequenced completely.