11.) Which of the following stages of development a.) neurula b.) gastrula c.) m
ID: 38264 • Letter: 1
Question
11.) Which of the following stages of development
a.) neurula
b.) gastrula
c.) morula
d.) blastula
12.) Induction refers to
a.) the pushing in of cells to form the gatrula
b.) the way sceientists apply the information gained from
c.) experimentation
d.) substances from one embryonic cell influencing the development
13.) Implamantation occurs in human roughly six days after fertilization. That is important, in that:
a.) The uterine wall must be developed enough to support the embryo
b.) The embryo must have a majority of maternal protein present for implantation to work
c.) The embryo must hve a majority of embroyonic proteins present for implantation to work
d.) None of the above
e.) A and B
14.) At the blastula stage the embryo consists of
a.) a mass of cells each the size of the zygote
b.) three differentiated layers of cell
c.) a two layer hollow ball of cells
d.) cells which have different DNA content
15.) The proper order of development of an hman embryo is
a.) zygote, blastula, cleavage, neurula, gastrula
b.) zygote, morula, blastula, gastrula, neurula
c.) zygote, cleavange, neurula, blastula, gastrula,
d.) cleavage, blastula, gastrula, neurula, zaygote
e.) none of these
Explanation / Answer
11)C
12)A
13)D
14)B
15)C
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