As a morula, the embryo consists of
A) a hollow ball of cells.
B) a cluster of cells that are much larger than normal cells.
C) cells that have different DNA content.
D) a solid mass of cells, each the size of the zygote.
E) three differentiated layers of cells.
B
You might also like to view...
Reiji Okazaki discovered that what are now called "Okazaki fragments" produced during DNA
replication. These are
a. short lengths of new DNA on the leading strand. b. RNA primers on the lagging strand. c. RNA primers on both the lagging and leading strand. d. short lengths of new DNA on the lagging strand. e. RNA primers on the leading strand.
A gymnosperm that produces a long taproot and only two leaves belongs to the genus Gnetum
____________________ Indicate whether the statement is true or false.
DNA evidence has strongly supported the original groupings proposed by Carl Linnaeus to show relationships between organisms
Indicate whether the statement is true or false
Beer, wine, and spirits are produced as the result of cellular metabolism by:
A) bacteria occurring in the absence of free electrons. B) yeast occurring in the absence of oxygen. C) yeast occurring in the absence of free electrons. D) bacteria occurring in the absence of oxygen. E) pyruvate occurring in the absence of oxygen.