A person can discriminate loud sound from a soft sound because a loud sound:a
is sent to a different area of the brain than a soft sound.
b. produces a strong graded potential.
c. stimulates a greater number of hair cells.
d. stimulates the hair cells more intensely.
e. has a different vibration frequency than that of a soft sound.
d
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Transcription of a gene depends on the presence of a particular combination of enhancers and their regulatory transcription factors, a type of gene regulation called ____ control
Fill in the blank with the appropriate word.
In gene regulation and control, induction can be defined as the:
a. mechanism of genetic control in which genes are induced only when the substrate to be degraded by enzymatic action is present. b. uptake of free DNA from the environment and recombination with the recipient's homologous DNA. c. mechanism of genetic control in which genes are not transcribed and therefore are not expressed in the presence of those target products in sufficient supply. d. change of the bacterial genotypes through the exchange of DNA from one cell to another.
If you know that a DNA double helix consists of 20 % adenine, what percentage of the DNA double helix is guanine (G)?
A. 20% B. 80% C. 30% D. There is not information to know
How many different kinds of gametes can be made by an individual with the genotype AaBb?
A) 2 B) 4 C) 8 D) 16