Genes are found in the same order for large stretches of the X chromosome in the rat and mouse genomes, indicating
A. conservation of neoteny.
B. conservation of synteny.
C. occurrence of aneuploidy.
D. formation of pseudogenes.
Answer: B
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Where is the site of elongation of long bones?
A. in the diaphysis. B. in the growth plate epiphysis. C. as part of the articular cartilage. D. lining the bone marrow cavity.
As different cell lineages use different subsets of
genes during development, they become specialized through a process called __________. Fill in the blank(s) with the appropriate word(s).
While oncogenes are responsible for cancer cells, tumor-suppressing genes are responsible for
tumorous tissues. Indicate whether the statement is true or false.
Dolly the sheep ________
A) was the first mother who gave birth to a cloned sheep B) received its nuclear DNA from the foster mother C) received its mother's nucleus from her bone marrow D) was the first mammal cloned from an adult cell