The Y chromosome was challenging to sequence because
A) it is very small.
B) the sequence has many sites of high symmetry called palindromes.
C) it is very similar to the X chromosome.
D) not enough men volunteered to have their Y chromosomes sequenced.
B) the sequence has many sites of high symmetry called palindromes.
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Coenzymes that bind tightly to enzymes are called ____
a. cofactors b. appendages c. regulatory groups d. prosthetic groups e. magnetic groups
In corn, having ligules (L) is dominant to liguleless (l), and green leaves (G) is dominant to white leaves (g). If a pure-breeding liguleless plant with green leaves is crossed to pure-breeding plant with ligules and white leaves, predict the proportion of F2 progeny with the genotype Ll gg.
A) 1/16 B) 1/8 C) 1/4 D) 1/2 E) Cannot be determined
Lamarck's theory of evolution was based upon
A. polyploidy. B. geographic isolation. C. macroevolution. D. acquired characteristics.
Blood pressure drives the first step in urine formation, called _____________________.
A. tubular reabsorption B. antidiaresis C. tubular secretion D. glomerular filtration E. aldosterone processing