What type of cross is used to determine if an individual with the dominant form of a trait is homozygous or heterozygous?
A. double cross
B. dihybrid cross
C. reciprocal cross
D. test cross
E. back cross
D. test cross
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For a chemical bond to form:
A. the process must be exothermic, releasing energy upon bond formation. B. the total energy of the system must be higher in the bonded state than in the nonbonded state. C. one of the atoms must be more electronegative than the other. D. the process must consume more energy than it takes to break the bond. E. the temperature of the system must be low, slowing the molecular motion of the atoms.
What type of organism causes tuberculosis?
What will be an ideal response?
When Shakespeare wrote about the world as a stage
and each of us being players, he was unknowingly referring to the biological concept of a. succession. b. the niche. c. different habitats. d. feeding levels. e. interspecific competition.
How was it determined that X-rays are mutagenic?
What will be an ideal response?