If the many offspring of a double-factor cross always have both recessive traits,
A. one parent was homozygous dominant for both traits.
B. both parents were homozygous dominant for both traits.
C. one parent was homozygous recessive for both traits.
D. both parents were homozygous recessive for both traits.
D. both parents were homozygous recessive for both traits.
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In cell signal propagation, what does dimerization do?
a. moves water across the plasma membrane in large quantities b. allows activated receptors to interact extracellularly with the surrounding environment c. enables the intracellular domains of the receptors to activate each other d. shuts down the signaling pathway
The California current carries cold water towards the equator. It is described as being slow moving and having wide, loose boundaries. What kind of current would it be classified as?
a. Eastern boundary current b. Equatorial current c. Transverse current d. Western boundary current
Which of the following components is NOT part of the modern cell theory?
A) All living organisms are made up of one or more cells. B) Cells are the functional units of multicellular organisms. C) The smallest living organisms are single cells. D) All cells arise from preexisting cells. E) Bacteria are examples of eukaryotic cells.
What is the largest possible value that linkage disequilibrium can reach if all allele fre-quencies are 0.5?
a. 0.25 b. 0.5 c. 0.75 d. 1 e. None of the above