Which of the following would be a plant adaptation to desert environments?

1.stomata that open at night instead of during the day to minimize water loss
2.root hairs for increased water absorption
3.broad flat leaves to get more light for photosynthesis
4.apical meristem tissue that increases diameter of the stem rather than length of the stem


1

Biology & Microbiology

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Explain how T7 promoters regulate transcription and why cloning vectors contain them

What will be an ideal response?

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Chromosomal aberrations:

A. are caused by errors during meiosis. B. are typically only seen in the elderly. C. are usually fixed by DNA polymerase. D. can be caused by methylation. E. are not described by any of the answer

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Matching. Choose the one most appropriate

statement. 1. ___ cyclic pathway of ATP formation 2. ___ noncyclic pathway of ATP formation 3. ___ carbon dioxide fixation 4. ___ the PGA to PGAL conversion 5. ___ the formation of glucose A. uses ribulose bisphosphate; produces PGA B. uses ATP and NADPH C. uses two PGAL D. produces ATP and NADPH E. uses an electron transfer chain to produce ATP

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Which component of a phospholipid is found in the interior of a lipid bilayer?

a. glycerol b. fatty acids c. phosphate group

Biology & Microbiology