Intertidal chitons and snails use the ____ as a means of attachment to the rocks
a. foot
b. mantle
c. visceral mass
d. head
e. radula
A
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White fruit color in summer squash is influenced by a dominant allele W, whereas colored fruit must
be ww. In the presence of ww, a dominant gene G results in yellow fruit, and if the individual had both recessive genes in the homozygous condition, it would be green. Give the F2 phenotypic ratios resulting from a cross of a pure-breeding white of genotype WW GG with a green. What will be an ideal response?
What are the cells that make up loose connective tissue?
A) fibroblasts B) osteocytes C) chondrocytes D) hepatocytes
The mediator protein complex in eukaryotes
A. is composed of a single protein. B. facilitates interactions between RNA polymerase II and regulatory transcription factors. C. controls the rate at which RNA polymerase translates mRNA. D. completely enfolds RNA polymerase and the general transcription factors.
Characteristics of good antigens include all of the following EXCEPT ______.
A. large, repetitive molecules B. exotoxins C. whole cells D. viruses