The Pax6 gene
A. is a master control gene for limb development.
B. codes for a protein that controls the expression genes related to eye development.
C. has no known homologs.
D. is a homolog to the eyeless gene in rodents.
B. codes for a protein that controls the expression genes related to eye development.
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Which is a characteristic of seminal fluid?
A) It consists of sperm and secretions. B) It is acidic. C) It travels through the large intestine to the anus. D) It is free of prostaglandins and nutrients.
As oxygen binds to hemoglobin, the ________ of the hemoglobin molecule will change through a process of ________ such that the binding of oxygen is enhanced.
A) amino acid sequence : phosphorylation B) cooperativity : negativity C) affinity : positive cooperativity D) affinity : negative cooperativity E) cooperativity : positivity
A key element in the world's population growth is its uneven distribution among countries.
Answer the following statement true (T) or false (F)
Bacterial conjugation is often referred to as bacterial sex. Why is this term inaccurate?
a. It does not require two cells to occur. b. Sex is a phenomenon only seen in animals. c. Conjugation does not result in the formation of new offspring. d. Bacteria are neither male nor female.