Question 1

Trichoplax is a very simple two-layered organism harboring only four different cell types. In which phylum is Trichoplax classified?

Accepted Answer

A)  Porifera 
B)  Placozoa 
C)  Ctenophora 
D)  Cnidaria 
A)  Porifera 
B)  Placozoa 
C)  Ctenophora 
D)  Cnidaria B

Question 2

Which of the following biologists was quoted as saying "nothing in biology makes sense unless viewed in the light of evolution?"

Accepted Answer

A)  Theodosius Dobzhansky 
B)  Gregor Mendel 
C)  Charles Darwin 
D)  Hans Spemann 
A)  Theodosius Dobzhansky 
B)  Gregor Mendel 
C)  Charles Darwin 
D)  Hans Spemann A

Question 3

What is the Drosophila chordin-related gene?

Accepted Answer

A)  Short gastrulation 
B)  BMP4 
C)  Chordino 
D)  Long gastrulation 
A)  Short gastrulation 
B)  BMP4 
C)  Chordino 
D)  Long gastrulation A

Question 4

What is ontogeny?

Accepted Answer

A)  The evolutionary history of a species or group 
B)  The speed of developmental events 
C)  The development of an organism 
D)  The sharing of embryological structures between animals 
A)  The evolutionary history of a species or group 
B)  The speed of developmental events 
C)  The development of an organism 
D)  The sharing of embryological structures between animals

Question 5

Humans have five digits on each hand and foot. All modern vertebrate species have no more than which number of digits?

Accepted Answer

A)  5 
B)  6 
C)  7 
D)  8 
A)  5 
B)  6 
C)  7 
D)  8

Question 6

The living unicellular group most closely related to multicellular animals is

Accepted Answer

A)  Filastereans 
B)  Choanoflagellates 
C)  Ichthyosporeans 
D)  Fungi 
A)  Filastereans 
B)  Choanoflagellates 
C)  Ichthyosporeans 
D)  Fungi

Question 7

While Drosophila have the simplest single set of Hox genes on a single chromosome, higher vertebrates typically have four sets across four different chromosomes. How many wholesale duplications of the Hox complex must have occurred during vertebrate evolution?

Accepted Answer

A)  2 
B)  1 
C)  3 
D)  4 
A)  2 
B)  1 
C)  3 
D)  4

Question 8

Which of the following refers to differences in the timing of developmental events?

Accepted Answer

A)  Heterochrony 
B)  Neoteny 
C)  Ontogeny 
D)  Synchrony 
A)  Heterochrony 
B)  Neoteny 
C)  Ontogeny 
D)  Synchrony

Question 9

Vertebrates, mollusks, and nematodes are tripoblasts. Which embryonic characteristic classifies them as tripoblasts?

Accepted Answer

A)  They have three germ layers 
B)  Their digestive systems have three branches 
C)  Their mid-blastula transition occurs at the third cleavage event 
D)  Their tissues develop across three primary axes 
A)  They have three germ layers 
B)  Their digestive systems have three branches 
C)  Their mid-blastula transition occurs at the third cleavage event 
D)  Their tissues develop across three primary axes

Question 10

During Darwin's visit to the Galapagos Islands he observed the differences in the shapes of beaks on finches and attributed those differences to the associated diets. We now know that calmodulin and a signaling pathway dictate these differences in size and shape. What is that signaling pathway?

Accepted Answer

A)  BMP 
B)  Wnt 
C)  Shh 
D)  Notch 
A)  BMP 
B)  Wnt 
C)  Shh 
D)  Notch

Trichoplax is a very simple two-layered organism harboring only four different cell types. In which phylum is Trichoplax classified?

Which of the following biologists was quoted as saying "nothing in biology makes sense unless viewed in the light of evolution?"

What is the Drosophila chordin-related gene?

What is ontogeny?

Humans have five digits on each hand and foot. All modern vertebrate species have no more than which number of digits?

The living unicellular group most closely related to multicellular animals is

While Drosophila have the simplest single set of Hox genes on a single chromosome, higher vertebrates typically have four sets across four different chromosomes. How many wholesale duplications of the Hox complex must have occurred during vertebrate evolution?

Which of the following refers to differences in the timing of developmental events?

Vertebrates, mollusks, and nematodes are tripoblasts. Which embryonic characteristic classifies them as tripoblasts?

During Darwin's visit to the Galapagos Islands he observed the differences in the shapes of beaks on finches and attributed those differences to the associated diets. We now know that calmodulin and a signaling pathway dictate these differences in size and shape. What is that signaling pathway?

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

Plant Life Cycle and Development

Filters

Exam 14: Evolution and Development

Trichoplax is a very simple two-layered organism harboring only four different cell types. In which phylum is Trichoplax classified?

Which of the following biologists was quoted as saying "nothing in biology makes sense unless viewed in the light of evolution?"

What is the Drosophila chordin-related gene?

What is ontogeny?

Humans have five digits on each hand and foot. All modern vertebrate species have no more than which number of digits?

The living unicellular group most closely related to multicellular animals is

While Drosophila have the simplest single set of Hox genes on a single chromosome, higher vertebrates typically have four sets across four different chromosomes. How many wholesale duplications of the Hox complex must have occurred during vertebrate evolution?

Which of the following refers to differences in the timing of developmental events?

Vertebrates, mollusks, and nematodes are tripoblasts. Which embryonic characteristic classifies them as tripoblasts?

During Darwin's visit to the Galapagos Islands he observed the differences in the shapes of beaks on finches and attributed those differences to the associated diets. We now know that calmodulin and a signaling pathway dictate these differences in size and shape. What is that signaling pathway?

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

Plant Life Cycle and Development

Filters