Question 1

What is the name of the slowly dividing, self-renewing stem cells of the central zone within a meristem?

Accepted Answer

A)  Centrals 
B)  Peripherals 
C)  Initials 
D)  Apicals 
A)  Centrals 
B)  Peripherals 
C)  Initials 
D)  Apicals C

Question 2

Which of the following is not true of homeotic floral mutations in Arabidopsis?

Accepted Answer

A)  One class of mutants affect whorls 1 and 2 
B)  One class of mutants affect whorls 3 and 4 
C)  One class of mutants affect whorls 2 and 3 
D)  One class of mutants affect whorls 1 and 4 
A)  One class of mutants affect whorls 1 and 2 
B)  One class of mutants affect whorls 3 and 4 
C)  One class of mutants affect whorls 2 and 3 
D)  One class of mutants affect whorls 1 and 4 D

Question 3

Which of the following is the type of meristem of the axillary bud near the base of a leaf?

Accepted Answer

A)  Shoot apical meristem 
B)  Lateral shoot meristem 
C)  Inflorescence meristem 
D)  Floral meristem 
A)  Shoot apical meristem 
B)  Lateral shoot meristem 
C)  Inflorescence meristem 
D)  Floral meristem B

Question 4

Which of the following is not true of auxin?

Accepted Answer

A)  Auxin functions as a diffusible extracellular signaling factor 
B)  It establishes the apical-basal axis 
C)  It is actively transported from the basal cell into the apical cell 
D)  The concentration gradient of auxin is necessary for specifying different cell fates 
A)  Auxin functions as a diffusible extracellular signaling factor 
B)  It establishes the apical-basal axis 
C)  It is actively transported from the basal cell into the apical cell 
D)  The concentration gradient of auxin is necessary for specifying different cell fates

Question 5

At which stage do cotyledons start to develop wing-like structures?

Accepted Answer

A)  Heart stage 
B)  Globular stage 
C)  Octant stage 
D)  Triangular stage 
A)  Heart stage 
B)  Globular stage 
C)  Octant stage 
D)  Triangular stage

Question 6

What kinds of proteins do floral organ identity genes encode?

Accepted Answer

A)  Intercellular signaling ligands 
B)  Cell-adhesion proteins 
C)  Cell-surface receptors 
D)  Transcription factors 
A)  Intercellular signaling ligands 
B)  Cell-adhesion proteins 
C)  Cell-surface receptors 
D)  Transcription factors

Question 7

Which of the following is not true of the first cell division of a plant embryo?

Accepted Answer

A)  It establishes the apical-basal axis of the plant 
B)  It gives rise to a suspensor 
C)  It is parallel to the long axis 
D)  It gives rise to a proembryo 
A)  It establishes the apical-basal axis of the plant 
B)  It gives rise to a suspensor 
C)  It is parallel to the long axis 
D)  It gives rise to a proembryo

Question 8

Which of the following is not a correct interpretation of a differentiated somatic cell's ability to regenerate a new plant?

Accepted Answer

A)  Maternal determinants are of little or no importance for plant embryogenesis 
B)  The fate of many cells in the adult plant body is not fully determined 
C)  This opens up avenues for creating transgenic plants 
D)  Many adult plant cells have lost their potential 
A)  Maternal determinants are of little or no importance for plant embryogenesis 
B)  The fate of many cells in the adult plant body is not fully determined 
C)  This opens up avenues for creating transgenic plants 
D)  Many adult plant cells have lost their potential

Question 9

Which of the following axis is represented by the line between the leaf base to the leaf tip?

Accepted Answer

A)  Proximo-distal 
B)  Adaxial-abaxial 
C)  Apical-basal 
D)  Dorso-ventral 
A)  Proximo-distal 
B)  Adaxial-abaxial 
C)  Apical-basal 
D)  Dorso-ventral

Question 10

A diffusible inhibitor emanating from the shoot apex inhibits the development of lateral buds below the apical bud. What is this inhibitory effect called?

Accepted Answer

A)  Lateral inhibition 
B)  Apical dominance 
C)  Lateral dominance 
D)  Apex inhibition 
A)  Lateral inhibition 
B)  Apical dominance 
C)  Lateral dominance 
D)  Apex inhibition

What is the name of the slowly dividing, self-renewing stem cells of the central zone within a meristem?

Which of the following is not true of homeotic floral mutations in Arabidopsis?

Which of the following is the type of meristem of the axillary bud near the base of a leaf?

Which of the following is not true of auxin?

At which stage do cotyledons start to develop wing-like structures?

What kinds of proteins do floral organ identity genes encode?

Which of the following is not true of the first cell division of a plant embryo?

Which of the following is not a correct interpretation of a differentiated somatic cell's ability to regenerate a new plant?

Which of the following axis is represented by the line between the leaf base to the leaf tip?

A diffusible inhibitor emanating from the shoot apex inhibits the development of lateral buds below the apical bud. What is this inhibitory effect called?

History and Basic Concepts

Drosophila Life Cycle and Development of the Body Plan

Vertebrate Life Cycles, Experimental Techniques Human Development

Laying Down the Vertebrate Body Plan: Xenopus and Zebrafish

Laying Down and Completing the Vertebrate Body Plan: Chick and Mouse

Morphogenesis: Change in Form in the Early Embryo

Cell Differentiation Stem Cells

Germ Cells, Fertilization Sex

Organogenesis

Development of the Nervous System

Growth, Post-Embryonic Development and Regeneration

Evolution and Development

Filters

Exam 13: Plant Life Cycle and Development

What is the name of the slowly dividing, self-renewing stem cells of the central zone within a meristem?

Which of the following is not true of homeotic floral mutations in Arabidopsis?

Which of the following is the type of meristem of the axillary bud near the base of a leaf?

Which of the following is not true of auxin?

At which stage do cotyledons start to develop wing-like structures?

What kinds of proteins do floral organ identity genes encode?

Which of the following is not true of the first cell division of a plant embryo?

Which of the following is not a correct interpretation of a differentiated somatic cell's ability to regenerate a new plant?

Which of the following axis is represented by the line between the leaf base to the leaf tip?

A diffusible inhibitor emanating from the shoot apex inhibits the development of lateral buds below the apical bud. What is this inhibitory effect called?

History and Basic Concepts

Drosophila Life Cycle and Development of the Body Plan

Vertebrate Life Cycles, Experimental Techniques Human Development

Laying Down the Vertebrate Body Plan: Xenopus and Zebrafish

Laying Down and Completing the Vertebrate Body Plan: Chick and Mouse

Morphogenesis: Change in Form in the Early Embryo

Cell Differentiation Stem Cells

Germ Cells, Fertilization Sex

Organogenesis

Development of the Nervous System

Growth, Post-Embryonic Development and Regeneration

Evolution and Development

Filters