When the light reactions occur in the daytime and the Calvin cycle takes place at night, this is
an example of
a. physical separation.
b. seasonal separation.
c. temporal separation.
d. transpiration.
C
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Because there was no previous history of hemophilia in Queen Victoria's family, and because she transmitted the mutant allele to a number of her children, it is reasonable to assume that ____
a. her father was homozygous for the disorder b. her mother was homozygous for the disorder c. her sister was a heterozygous carrier d. she was homozygous for the disorder e. she was a heterozygous carrier
About 10-15% of African Americans in the US are carriers for ____, an autosomal recessive genetic disorder in which
a defective version of the hemoglobin protein is produced. a. Duchenne muscular dystrophy b. phenylketonuria c. achondroplasia d. sickle-cell anemia e. cystic fibrosis
Phytochrome is converted from the inactive to the active form by being exposed to light of what color?
a. far red b. red c. yellow d. white e. blue
Resident flora of the intestines include
A. Bacteroides. B. Haemophilus. C. Staphylococcus. D. Streptococcus. E. All of these choices are correct.