In a DNA profile analysis using two loci, the chance of a match between two unrelated individuals at one locus is 1 in
400, and 1 in 1000 at the second locus. Therefore, the overall probability that two unrelated individuals will match at both
loci is ____________________. Fill in the blank(s) with the appropriate word(s).
1 in 400,000
1/400,000
1 in 400000
1/400000
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If a cell begins mitosis with 36 chromosomes, there will be ________ chromosomes in each cell after mitosis, and each daughter cell will be ________ genetically
A) 36; identical B) 36; different C) 18; identical D) 18; different
A ____ is a monocot.
A. maple tree B. grass C. fern D. pine tree
According to the pressure flow hypothesis of phloem transport,
A) solute moves from a high concentration in the source to a lower concentration in the sink. B) water is actively transported into the source region of the phloem to create the turgor pressure needed. C) the combination of a high turgor pressure in the source and transpiration water loss from the sink moves solutes through phloem conduits. D) the formation of starch from sugar in the sink increases the osmotic concentration. E) the pressure in the phloem of a root is normally greater than the pressure in the phloem of a leaf.
Gram-positive cultures older than 24 hours may stain Gram negative due to changes in the peptidoglycan layer.
A) True B) False