A moss sporophyte must obtain some carbohydrates from the gametophyte
a. True
b. False
ANSWER: True
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Transcriptional regulators bind most frequently at the ________ site of DNA
A) major groove B) minor groove C) histone complex D) primary supercoil
Which of the following is a reversible post-translational covalent modification?
A. phosphorylation B. acetylation C. disulfide bond formation D. phosphorylation and acetylation E. acetylation and disulfide bond formation
Typical soils of the temperate forest region are
A) alfisols and inceptisols. B) oxisols. C) andosols. D) aridisols and vertisols.
Answer the following questions true (T) or false (F)
1. Animal cells are surrounded by a cell wall. 2. The central vacuole is used for nutrient storage and photosynthesis in plant cells. 3. Ribosomes are found only in plant cells.