The oxygen released in photosynthesis comes from
a. carbon dioxide.
b. glucose.
c. ribulose bisphosphate.
d. water.
e. atmospheric oxygen.
Answer: d
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Regulatory transcription factors _____
A) influence the binding of sigma factor to DNA B) influence the assembly of the basal transcription complex C) influence the degree of unwinding of DNA at the promoter D) open the two strands of DNA so that RNA polymerase can begin transcription
Figure 41.13A
The disease acquired from the mother during childbirth shown in the above infant photograph is caused by ____.
A. syphilis B. gonorrhea C. chlamydia D. HPV E. AIDS
A higher concentration of solutes corresponds to a (higher/lower) concentration of water in a given solution
What will be an ideal response?
Data produced by C. Bridges in the early part of this century indicate that sex in Drosophila is determined by ________
A) the number of Y chromosomes B) a balance between the number of X chromosomes and the number of haploid sets of autosomes C) the SRY gene D) the number of X chromosomes E) the ratio of X to Y chromosomes