Two probes, A and B, hybridize very near each other in a region of DNA that contains RFLPs when digested with HindIII
The four maps show the location and intervening distances of the HindIII restriction sites and the binding locations of probes A and B. The maps show alleles H1-H4 present in a population. What band(s) is/are seen in Southern blot analysis of a H2H3 heterozygote using probe B? A) 3 kb and 5 kb
B) 3 kb and 8 kb
C) 3kb, 2kb, and 8 kb
D) 5 kb and 8 kb
E) 2 kb, 3 kb, and 5 kb
A
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The hierarchical nature of cellular structure is accurately illustrated in which of the following lists of substances (from smallest to largest)?
A) nucleotides, chromosome, DNA, nucleus, cell B) cellulose, glucose, cell wall, cell C) nucleotides, nucleus, DNA, chromosome, cell D) nucleotides, DNA, chromosome, nucleus, cell E) protein, membrane, amino acids, chloroplast, cell
Studies indicate that in utero nicotine exposure can cause breathing abnormalities in neonatal
mammals. These abnormalities can include
a. elevated breathing rate while awake. b. increased frequency of apneas during sleep. c. delayed arousal from sleep in response to hypoxia. d. elevated breathing rate while awake and increased frequency of apneas during sleep. e. increased frequency of apneas during sleep and delayed arousal from sleep in response to hypoxia.
Productivity may be expressed in units of energy per unit area per unit time or in units of dry organic matter per unit area per unit time
Indicate whether the statement is true or false
Primary growth in roots originates from ____.
A. dermal cells B. vascular cells C. apical meristems D. lateral meristems E. the pericycle