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MBG 2400 LUKEN Paper #2, 3 & 4
dwarfism, polydactyly, isolated reproduction, quantitative genes
10
Biology
Undergraduate 2
10/17/2013

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Term
If gibberellin is either not detected or not produced in a plant, will it be tall or dwarf?
Definition
dwarf
Term
What is a BAC?
Definition
bacterial artificial chromosome
Term
If a mutant allele is a cis-acting regulator, can it affect a gene on the other allele?
Definition
no, only genes on the same allele as the mutant
Term
What does the Shh^null allele do?
Definition
-cis acting regultor that prevents/deactivates the polydactyly mutation
Term
What concept was outlined in the 4th paper?
Definition
-only 2 genes control flower colour, but you can get a wide range of colours
Term
If both alleles A and B contribute to pigmentation, and alleles a & b do not, sort the following in order of most pigmented to least pigmented:

aaBB
AABB
AaBB
AaBb
AABB
AABb
Definition
Extremely pigmented: AABB
Very pigmented: AABb & AaBB
Pigmented: AaBb
No pigment: aabb
Term
Is reproductive isolation necessary for speciation?
Definition
yes
Term
A trait that is not clear cut and is distributed continuously throughout a population is....
Definition
a quantitative trait
Term
True or False
Many quantitative traits are due to genetic & environmental influences
Definition
true
Term
As the number of segregating gene pairs _______ so does the continuity of the trait
Definition
true
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