The effects of global climate change are restricted to terrestrial environments
Indicate whether the statement is true or false.
ANSWER: False - are not
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The ____ is to flagellated protozoans as the
____ is to prokaryotes.
a. cytoskeleton; flagellum b. endoplasmic reticulum; ribosome c. fimbriae; Golgi body d. pellicle; cell wall e. cytoskeleton; plastid
Which of the following choices most likely lists the sizes of the four DNA fragments in lane 6 (from top to bottom) of this agarose gel stained with ethidium bromide? (Note: The well that the DNA was loaded into is at the top of the gel image.)
A) 600 bp, 450 bp, 300 bp, 100 bp B) 100 bp, 300 bp, 450 bp, 600 bp C) 400 bp, 300 bp, 600 bp, 100 bp D) 300 bp, 400 bp, 100 bp, 600 bp E) DNA fragment size can't be estimated using an agarose gel.
Brown eye color requires (select all that apply):
a. one dominant allele and two recessive alleles b. genes for the enzymes that synthesize the pigment melanin c. phenylalanine, from which the melanin is made.
Proteins in psychrophilic cells generally have ________ than proteins found in cells that grow optimally at higher temperatures
a. fewer ?-helices and more ?-sheets b. fewer hydrogen bonds c. more ?-helices and fewer ?-sheets d. more hydrogen bonds