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In humans, a recessive mutation results in rosy red lips. Another recessive mutation causes long, curly lashes. The two genes r and l are on the same chromosome and are 20 mu apart. If two heterozygous individuals cross, what is the fraction of the offspring that will have both red lips and long lashes? Assume the alleles are in trans in the mother and in cis in the father, and no double crossovers occurred.
Draw the Punnett Square, with each row and column labeled with one of the possible genotypes of sperm and eggs, respectively. (The fractions of these genotypes are included with each label.)
In your own words briefly (1-2 paragraphs) the process of muscle contraction. Make sure you utilize the following terms: action potential, neuromuscular junction, acetylcholine, sarcolemma
Editorial letter is designed to have you state and defend an ethical position on the topic of genetic technology. You will write a clear introduction that includes a thesis statement, several body paragraphs and a thoughtful conclusion.
Why is drosophila a convenient animal for studying linked genes? Explain in deatils
why is the heart described as a double pump? describe the general structure of arteries and veins. how are they
What is the role of Meckel cells during cartilage development ?
In a population of 50,000 diploid yeast cells (in this case the census and effective population sizes are identical) all cells have genotype A until a mutation (A-a) occurs, giving one copy of a. Alleles confer equivalent fitness.
What role does genetics play in the variation seen in this leafhopper population
Assume you have travelled back in time and entered the body of your favorite monk. You find yourself in his garden observing red and white flowering pea plants.
Cross between pure red tomato and yellow tomato made all red F1 progeny. From the F2 progeny of 400 plants, 90 were yellow. Hypothesize that a single pair of allele is involved such that Y- = Red and yy = Yellow. Test this hypothesis using Chi squ..
Can you imagine any potential advantage that would result from the duplication of a region of a chromosome? Briefly explain what/why.
write a 850- to 1050-word paper that addresses the following points about your 3-day food intake1 recorded intake of
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