What separates in meiosis I to reduce the diploid number (2n) of chromosomes to the haploid number (n)?
What will be an ideal response?
homologous chromosomes
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Which of the following statements about cadherins and integrins are true? (Select all correct choices.)
A. They are found on the surfaces of most animal cells. B. They are transmembrane proteins that attach to cytoskeletal elements inside the cell. C. They are highly diverse, and highly specific for what their extracellular domain will attach to. D. They are not found in embryonic cells.
What is the key concept addressed by the question?
What will be an ideal response?
Manatees are mostly found in:
a. cold polar waters. b. Antarctica. c. tropical estuaries. d. temperate coastal areas. e. Eastern Pacific Ocean.
The two tendons of the biceps attach to ___
a. the clavicle b. the scapula c. the humerus d. the radius e. more than one of these bones