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Question: Lots of environment factors, such as ultraviolet light from the Sun, chemical pollutants, X-rays, cosmic rays from outer space, may produce an error in a gene. Such errors are called mutations. Just as in misspelling a word in a paragraph, may change the meaning of the paragraph, inserting the wrong amino acid at a certain spot in a protein may change the function of that protein. However, certain mutations must have been beneficial in the past, or most organisms would not be as well adapted as they are to their present environments.
Today's question: How might alterations in DNA structure be harmful to a species? How might such alterations be beneficial? What type of genetic change is most important for evolution?
A robot unloads a finished component from a machine and places it on a gravity convetor, the component accelerates from rest until it reaches the bottom of the conveyor 4.5 seconds later,the component is travelling at a velocity of 1.35m/s
draw the structure of an RNA hairpin with a 10-bp stem and a 5n-t loop. make up a sequence that will form such a structure. show the sequence in the linear as well as the hairpin form.
Name the four molecular families into which we can group the thousands of different kinds of molecules in a cell.
Assume that in pea plants yellow and smooth are dominant and unlinked (independent) traits. If two heterozygous yellow
Compare and contrast the three modes of photosynthesis. List the advantages and disadvantages of each mode. Explain what causes hair to lose its color, that is, go gray as we age
Include and list the classification for the COVID -19 coronavirus 2 including the terms from kingdom to species.
Why would a cervix be adaptive when retaining an embryo in the mother's body?
The habitat of one species of tropical fish is red coral reefs. The large majority of the fish in this population are red. A few individual fish carry a mutatio
1. Why is fermentation an effective method of preserving food? Be specific about how fermentation affects the chemical properties of the food.
1. Explain the two ways gestation is organized in humans. What is occurring during each period/trimester?
Who is Greta Thunberg? What is the current carbon budget? When is it projected to be reached?
Design a chart that details the strengths and weaknesses of the three major cancer treatments; radiation therapy, surgery and chemotherapy
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