After a liver cell produces clotting proteins, what type of delivery system will use it to deliver the proteins to the blood?
a. transport vesicles
b. free ribosomes
c. lysosomes
d. secretory vesicles
Answer: d. secretory vesicles
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Early in mitosis, chromatin condenses. Which process takes place more easily as a result?
a. disappearance of the nuclear envelope b. replication of DNA c. orderly distribution of DNA into the two new nuclei d. formation of the mitotic spindle e. disintegration of nucleoli
An evolutionary model of animal development indicates that _____
a. differentiation is positional within a zygote b. homeotic genes are not universal among animals c. homeotic genes are found only in fruit flies, where they are responsible for odd placement of appendages d. new genetic lines are produced less by modification than by unique mutation e. somites form as blocks of genes in cells randomly distributed throughout the body
By what method is T-DNA integrated into the plant genome?
What will be an ideal response?
Ribosomes contain which of the following?
a. mRNA, tRNA, and rRNA are all found as part of the ribosome. b. rRNA c. tRNA d. mRNA