Question 1

The term "induction" describes a process in which a cell or cells

Accepted Answer

A)  influence the development of another group of cells. 
B)  trigger cell movements in an embryo. 
C)  stimulate the transcription of their own genes. 
D)  organize the egg cytoplasm before fertilization. 
E)  inhibit the movement of the embryo. 
A)  influence the development of another group of cells. 
B)  trigger cell movements in an embryo. 
C)  stimulate the transcription of their own genes. 
D)  organize the egg cytoplasm before fertilization. 
E)  inhibit the movement of the embryo.

Question 2

In laboratory mice, embryonic stem cells can be removed from early embryos called

Accepted Answer

A)  gastrulas. 
B)  blastocysts. 
C)  pluteus embryos. 
D)  "heart" embryos. 
E)  None of the above 
A)  gastrulas. 
B)  blastocysts. 
C)  pluteus embryos. 
D)  "heart" embryos. 
E)  None of the above

Question 3

In the developmental cascade in Drosophila's early development, the expression of pair rule genes is most likely to be turned on or off by the _______ genes.

Accepted Answer

The answer of In the developmental cascade in Drosophila's early...

Question 4

Which of the following statements about developmental processes is true?

Accepted Answer

A)  Biologists usually can observe determination via microscopic studies. 
B)  Differentiation is usually followed by determination. 
C)  Differentiation consists of the actual biochemical, structural, and functional changes of a cell. 
D)  All of the above 
E)  None of the above 
A)  Biologists usually can observe determination via microscopic studies. 
B)  Differentiation is usually followed by determination. 
C)  Differentiation consists of the actual biochemical, structural, and functional changes of a cell. 
D)  All of the above 
E)  None of the above

Question 5

The process of morphogenesis

Accepted Answer

A)  sets the developmental fate of a cell. 
B)  is the process by which different cell types arise. 
C)  is the shaping of differentiated cells into the multicellular body and its organs. 
D)  is the increase in body size. 
E)  All of the above 
A)  sets the developmental fate of a cell. 
B)  is the process by which different cell types arise. 
C)  is the shaping of differentiated cells into the multicellular body and its organs. 
D)  is the increase in body size. 
E)  All of the above

Question 6

If the MADS box genes in class A and class B are both expressed in the normal development of Arabidopsis, _______ will be produced.

Accepted Answer

A)  carpels 
B)  petals 
C)  stamens 
D)  sepals 
E)  None of the above 
A)  carpels 
B)  petals 
C)  stamens 
D)  sepals 
E)  None of the above

Question 7

The protein MyoD

Accepted Answer

A)  is a transcription factor that controls the expression of genes involved in the differentiation of muscle cells. 
B)  controls segment identity in mice. 
C)  is a transcription factor that activates a gene causing the cell cycle to start in muscle precursor cells. 
D)  is absent from adult muscle. 
E)  is the only transcription factor involved in differentiation of mesoderm cells into mature muscle cells. 
A)  is a transcription factor that controls the expression of genes involved in the differentiation of muscle cells. 
B)  controls segment identity in mice. 
C)  is a transcription factor that activates a gene causing the cell cycle to start in muscle precursor cells. 
D)  is absent from adult muscle. 
E)  is the only transcription factor involved in differentiation of mesoderm cells into mature muscle cells.

Exam 19: Differential Gene Expression in Development

The term "induction" describes a process in which a cell or cells

In laboratory mice, embryonic stem cells can be removed from early embryos called

In the developmental cascade in Drosophila's early development, the expression of pair rule genes is most likely to be turned on or off by the _______ genes.

Which of the following statements about developmental processes is true?

The process of morphogenesis

If the MADS box genes in class A and class B are both expressed in the normal development of Arabidopsis, _______ will be produced.

The protein MyoD

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