Which organ system is present in all helminths and is highly developed
What will be an ideal response?
the reproductive system
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The question(s) below are included here for courses that are structured to include written exercises. This may also serve as an exercise for a recitation or discussion section where students work alone or in groups on more difficult conceptual problems
Core Concept 21.6 is also covered in other suites for the chapter, so these questions can be left out if they are not appropriate for your course. What are the fates of new mutations in DNA sequence? What forces are primarily responsible for determining the fate of a new mutation? What will be an ideal response?
If part of a DNA template is the sequence GTTAGTCTGTGGGCT, then the mRNA transcribed from it is
A) GTTAGTCTGTGGGCT. B) CAATCAGACACCCGA. C) CAAUCAGACACCCGA. D) gln-ser-asp-thr-arg.
Plasmodesmata are most similar to
a. gap junctions in animal cells. b. tight junctions in bacteria. c. basement membranes in animal cells. d. adhering junctions in heart muscle. e. both tight junctions in bacteria and adhering junctions in heart muscle
The total collection of alleles in a population at any one time makes up that population's ________.
A. heterozygote frequency B. gene pool C. allele frequency D. genotype