3. If a rabbit with the defective gene is not fed plants with the pigment, what color is its fat? Can you see how the environment influences the expression of a trait?
3. If a rabbit with the defective gene is not fed plants with the pigment, what color is its fat? Can you see how the environment influences the expression of a trait?
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:11 del
156 Chapter 13
Mutations are
the source
of all change.
? QUESTION
Kaybee Kauffer.
3. If a rabbit with the defective gene is not fed plants with the pigment,
what color is its fat?
Can you see how the environment influences the expression of a trait?
4. What is different about a gene that creates albino color?
5. Describe the variation in the appearance among individuals in a
population when a trait is single-gene controlled compared to a trait
that is multiple-gene controlled.
Mutations
A mutation is a change in the sequence of nucleotides in the gene
(DNA). A gene can be mutated (changed) by radiation, chemicals in the
environment, or other spontaneous events that are surprisingly common
on this planet.
1. Which amino acid is supposed to be lined up at codon 6?
(Hint: Refer to the table in Exercise #2.)
Glutamic Acid
GAA
10 na na na na na na na nangy
W
Codon 6
2. What would happen if a mutation in DNA changed codon 6 in the
mRNA to GUA? (This one nucleotide substitution creates sickle-cell
anemia.) It would furn into valine
3. How does a mutation change the events at the ribosome?
A gene can be mutated by radiation, chemicals
in the environment or other common events
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