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Differential Gene Expression in Development

Total questions: 10

Worksheet time: 3mins

Name
Class
Date
1.

Which of the following are the processes of development, except?

a)

Determination

b)

Differentiation

c)

Metagenesis

d)

Growth

2.

A type of cell potency refers to an early embryo that has a potential to differentiate into any cell type.

a)

Totipotent

b)

Pluripotent

c)

Multipotent

d)

Unipotent

3.

What are the ways on how to determine cell fate? Select all that apply.

a)

cytoplasmic segregation

b)

apoptosis

c)

morphogenesis

d)

induction

4.

This term refers to the distinct "top" and "bottom" ends of an organism or structure of a cell as a result of cytoplasmic differences in gene expression.

a)

cytoplasmic determinants

b)

induction

c)

polarity

d)

promoter

5.

The concentration of an inducer directly affects the degree to which a transcription factor is activated.

a)

True

b)

False

6.

What do you call the process that results in the spatial organization of a tissue or organism?

a)

apoptosis

b)

homeotic mutation

c)

positional information

d)

pattern formation

7.

What model refers to a concentration gradient of a diffusible morphogen that signals each cell to specify its position?

a)

Bicoid

b)

French flag

c)

American flag

d)

Hunchback

8.

These genes encode a family of transcription factors that were expressed in different combinations along the length of an embryo and help determine cell fate within each segment.

a)

Gap genes

b)

Pair rule genes

c)

Segment polarity genes

d)

Hox genes

9.

Stem cells are rapidly dividing, differentiated cells.

a)

True

b)

False

10.

Which statement about determination is true?

a)

Differentiation precedes determination.

b)

All cells are determined after two cell divisions in most organisms.

c)

A determined cell will keep its determination no matter where it is placed in an embryo.

d)

A cell changes its appearance when it becomes determined.