Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;

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#Question id: 6946

#SCPH06 I Botany

The adult body plan of the fly is based on reiterating structures called segments; segment precursors (parasegments) are first positioned at the cell-by-cell level by which group of genes?

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#Question id: 10997

#SCPH06 I Botany

A 60-year-old woman has a resting heart rate of 70 beats/min, arterial pressure is 130/85 mm Hg, and body temperature is normal. Her pressure-volume diagram of the left ventricle is shown above.

What is her cardiac output in milliliters per minute?

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#Question id: 14148

#SCPH05 I Biotechnology

Dynamic programming determines optimal alignment by matching two sequences for all possible pairs of characters between the two sequences.

Reason(R): Use of the dynamic programming method requires a scoring system to account for matches and mismatches between sequences, and a scheme for Gap penalties.

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#Question id: 7753

#I Life Science/ Life Sciences Group – I-V

The best-studied type of plant autophagy, specialized organelles called autophagosomes enclose the cytoplasmic components and fuse with the vacuole, this is called

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#Question id: 4346

#SCPH01 Biochemistry

Which of the following results would occur if the repressor of an inducible operon were mutated so that it could not bind the operator?