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In the tubular flowers of foxgloves, wild-type coloration is red while a mutation called whit produces white flowers. Another mutation, called peloria, causes the flowers at the apex of the stem to be huge. yet another mutation, called dwarf, affects stem length. You cross a white-flowered plant to a plant that is dwarf and peloria. All of the F1 plants are tall with white, normal-sized flowers. You cross F1 back to the dawrf and peloria parent, and you see the following progeny: 572 dwarf, peloria; 562 white;86 dwarf,peloria,white; 81 dwarf,white; 78 wild-type; 73 peloria; 2 dwarf
a. what were the genotypes in the original cross?
b.draw a map showing the corect gene order and distance.
c. calculate interferance
Explain specifically how irradiation using the following methods destroys microbes provides an examples(s) of materials that can be sterilized by each of the techniques below.
Which type of pressure is responsible to maintain the erect position of a plant? turgor pressure Osmotic pressure Diffusion pressure
Two strands of a DNA molecule are radio-labeled such that each strand can be uniquely identified. After three bouts of replication, how many new molecules of DNA are formed? How many strands of DNA are radio-labeled? Are both radio-labeled strands..
Describe why people confined to wheelchairs as of paralyzed lower limbs have thin, weak bones in their thighs and legs.
define the relationship between chromatin packaging and transcription rates. Name two different types of chromatin modification associated with changes in gene expression.
Is a catalase test perfromed on colonies from a BAP? State reasons to support your answer.
What color do you guess that the fur of these mice will be? Why with reason?
Discover the signs and symptoms associated with acute appendicitis. Why is this condition potentially dangerous to the patient. Occurs when the segment of chromosomes breaks off and becomes reattached to another chromosome.
Discuss the economic/health impact of any one species of harmful water molds. What is the effect of increase temperature on a non enzyme catalyzed reaction?
Describe b riefly the role of HOX genes in brain development. If a twenty-five year old woman using Accutane to treat acne discovers that she is pregnant, what concerns do you have for the embryo/fetus?
A forty-two year old woman decides to lose weight on a diet prescribed by an anorexic friend. She loses about thirty pounds in 45 days, but her serum potassium level falls to 2.1 mmol/L.
Illustrate the structures of the sun including the interior, surface and atmosphere and what type of science is done to come to these conclusions. How does the structure of the sun compare to structure of the earth.
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