Consider the human population. With regards to the ABO blood groups there are _____ alleles, ____ possible genotypes, and _____ possible phenotypes.
A. 3, 4, 6
B. 2, 4, 6
C. 2, 3, 4
D. 2, 6, 4
E. 3, 6, 4
E. 3, 6, 4
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Answer the following statements true (T) or false (F)
1. Because they differ from other living organisms by lacking a discrete nucleus and many other cell inclusions, bacteria and archaea are more closely related to one another than they are to eukaryotes. 2. Archaea that tolerate and/or require high salinities are called halophiles. 3. Various anaerobic archaea that convert carbon dioxide and other carbon-bearing compounds into methane are called methanotrophs. 4. Type IV secretion systems are potentially applicable to treatment of human disease by using them to deliver DNA to target cells in human gene therapy.
_____ can cause mutations
a. Replication errors b. Transposons c. Ionizing radiation d. Non ionizing radiation e. Transposons and ionizing radiation f. all of these
Parasitoidism is a form of mutualism
Indicate whether the statement is true or false
Before the publication of Charles Darwin's On the Origin of Species, what was the prevailing public consensus regarding species evolution?
A) That species were permanent and unchanging B) That species evolved through physical changes that led to success C) That species evolved by means of natural selection D) That species were modified over time but did not change into new species