Human, gorilla, and chimpanzee DNA sequences are approximately __________ identical
a. 28%
b. 48%
c. 68%
d. 88%
e. 98%
E
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Which statement is TRUE of two separate regulators controlling one individual operon?
A) The two regulators themselves must respond to different signals, which enables both to control the operon differently. B) One regulator will likely control the transcription of one section of the operon, whereas the other regulator will control the other component. C) One regulator will bind to the operator region whereas the other will bind to the promoter region so they can co-occur and co-regulate the operon. D) Two regulators trying to control the same operon will likely result in only one being maintained after several generations.
Antigen-presenting cells present antigens to
A) B lymphocytes. B) T lymphocytes. C) dendritic cells. D) neutrophils.
Shown below is the output from an automated sequencing reaction. What is the sequence of the DNA template strand?
A. 5' - CCTGATAGAGTCTCCCT - 3'.
B. 3' - CCTGATAGAGTCTCCCT - 5'.
C. 3' - GGACTATCTCAGAGGGA - 5'.
D. 5' - GGACTATCTCAGAGGGA - 3'.
E. 5' - CCTGATAGAGTCTCCCT - 3'
3' - GGACTATCTCAGAGGGA - 5'.
The smallest unit that retains the chemical and physical properties of an element is a(n) ____
a. proton b. compound c. molecule d. neutron e. atom