Hemidesmosomes are important for ______________________
(a) tubulation of epithelial sheets.
(b) linkages to glycosaminoglycans.
(c) forming the basal lamina.
(d) attaching epithelial cells to the extracellular matrix.
(d)
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A(n) ________ is the ring of cytoplasm through a plasmodesmata
Fill in the blank with correct word.
Complex traits are often called _____ because they _____
A. qualitative; come in one of several discrete (distinct) forms. B. external; are influenced by the environment as well as by genes. C. quantitative; are described by measurements. D. epistatic; are influenced by many genes. E. environmental; are influenced by the environment as well as by genes.
As sperm are transported through the ducts system, what secretions are added from which three sets of glands to make up semen?
What will be an ideal response?
Selecting for transformants involves
A. identifying organisms that have taken up recombinant DNA. B. searching for RNA. C. production of proteins. D. production of DNA.