The process by which specific body tissues and organs form is ____
a. morphogenesis
b. cleavage
c. fertilization
d. gastrulation
e. gamete formation
ANSWER: a
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Which factor is important for maintaining the different germ cell layers in the developing embryo? [Hint: without this molecule the embryo would be a ball of cells with no distinct germ cell layers.]
A. activin B. noggin C. Spemann's organizer D. Hox gene E. cadherins
What is the study of genomes of multiple species that interact in an environment, which can also be used to identify new species, called?
a. gene therapy b. transgenics c. metagenomics d. pharmacogenomics
Positional cloning is used to link the inheritance of a disease in a pedigree to the inheritance of _____
a. other diseases or conditions b. a specific blood type c. other genes whose loci were known d. marker sequences produced by restriction enzymes e. X-linked genes
The ________ of several nephrons empties into a single collecting duct that eventually drains into the renal pelvis
Fill in the blank(s) with correct word