Go to: http://dnaftb.org/37/ Work through the Concept, Animation, Video and Prob
ID: 136040 • Letter: G
Question
Go to: http://dnaftb.org/37/ Work through the Concept, Animation, Video and Problem tabs and answer the following questions as you do.
What is the concept explored by the researchers?
Which organism did they study?
What are the life stages of this organism?
Which genes map out the head, thorax and abdomen?
What do the proteins produced by the genes in #4 do?
What is the "homeotic" process?
Give an example of a homeobox protein that activates a process.
Give an example of a homeobox protein that inhibits a gene.
How did the researchers generate their mutants?
What will happen to an embryo that doesn't have any BICOID protein?
What do you think happens when BICOID is overexpressed?
What kind of gene is hairy?
What kind of gene is eyeless?
Read: http://learn.genetics.utah.edu/content/variation/hoxgenes/ and answer questions:
What are "homeotic transformations"?
How many Hox genes did the ancestor of all animals have?
What is a benefit of having duplicate genes?
The "wing" program in insects is a modification of the _____ program.
What is a paralog?
Why do snakes have ribs from head to tail and mice only have them in the mid-back region?
Explanation / Answer
Concept explored by researchers: molecular basis of development of an organism.
Organism studied: Drosophila (fruit fly).
Life stages of the organism: egg, larva, pupa, and adult.
"gap" genes map out the head, thorax and abdomen.
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.