Exploring Evolutionary Developmental Biology

What does Evo/Devo stand for?

• Environmental Developmental Biology

• Evolving Developmental Biology

• Evolutionary Destructive Biology

• Evolutionary Developmental Biology

How genetically similar are humans and mice?

• 98.6%

• 90%

• 85%

• 75%

What is the primary function of developmental regulatory genes?

• They activate other genes responsible for body part formation.

• They determine the specific structure of proteins.

• They deactivate all unnecessary genes during development.

• They provide energy for gene replication.

What are hox genes responsible for in an embryo?

• Coding for skin color

• Producing the energy for development

• Creating the actual body parts

• Determining the position of body parts

What was the outcome when a mouse hox gene was inserted into a fruit fly?

• The fly grew a mouse eye on its back leg.

• The fly developed a fruit fly eye next to its back leg.

• The fly mutated into a new species.

• The fly's DNA was not altered.

How do regulatory genes influence rapid evolutionary changes?

• By increasing mutation rates across the genome

• By minor adjustments leading to significant developmental changes

• By completely rewriting the genetic code

• By causing extensive mutations in structural genes

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What evidence supports that birds still carry genes for teeth?

• Mutant chickens developing reptilian teeth

• All birds have small teeth

• Genetic studies showing active tooth genes

• Observation of teeth in bird fossils

What role do mutations in regulatory genes play in evolutionary traits?

• They always result in detrimental defects.

• They prevent any physical traits from developing.

• They have no significant impact.

• They can reactivate ancient, repressed features.

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