Heritability can only be measured for
A) traits with phenotypic variance.
B) traits with genotypic variance.
C) discrete traits.
D) polygenic traits.
E) None of these
A
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What form of coloration is shown by many seahorses?
A. aposematic B. Müllerian C. Batesian D. crypsis E. catalepsis
A mutation in the human gene for a fibroblast growth factor receptor (FGFR) appears to be responsible
for ____.
a. Duchenne muscular dystrophy b. phenylketonuria c. achondroplasia d. sickle-cell anemia e. cystic fibrosis
A student forgot to label a beaker containing a DNA solution and a beaker containing a glucose solution. If chemical analysis was performed to identify the contents of each beaker, which of the following would be found in the beaker of DNA but not in the beaker with glucose?
A. Nitrogen and phosphorus B. Carbon atoms C. Hydrogen and oxygen atoms D. Amino acids E. Fatty acids
In the life cycle of the brown alga Laminaria, which stage represents the young sporophyte?
1.A
2.B
3.C
4.D
5.E