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Lab- Punnett Squares
PreLab Questions- 1. Define the terms haploid and diploid. 2. What information do we gain from doing a punnett square?3. Define the term allele.
4. How many copies of each trait are contained in a single gamete?
Post Lab Questions- 5. If you mate two black flies what color(s) can their offspring be and why?
6. How can two flies with normal wings have offspring with vestigial wings? 7. Someone removed the labels from your fly jars. You have a jar of gray flies. Do you know their genotype? Why or why not?
8. You mate two gray normal winged flies and get offspring which are all gray but 25% of them have vestigial wings. What are the genotypes of the flies you mated? 9. Explain how many phenotypes are there for a trait that has two alleles that are governed by incomplete dominance. 10. Explain how many phenotypes are there for a trait that has two alleles that are governed by co- dominance.
Female Drosophila heterozygous for three recessive mutations e (ebony body), st (scarlet eyes), and ss (spineless bristles) were testcrossed, and the following progeny were obtained.
How do diffusion gradients of morphogens affect development?
A typical tumor doubles in size only every 100 days (although this varies significantly depending on the type of tumor). Can you speculate on why this is so much slower than the rate at which the genome can replicate?
What is the fertilized egg cell called after the sperm enters it and it attaches to the tissue in the uterus?
Describe the etiology, pathophysiology, and manifestations of pneumonia, tuberculosis, pulmonary hypertension, and cor pulmonale.
1 antibiotics can kill gram-negative bacteria but symptoms of fever and low blood pressure can persist. why?2 why is
Which of the following is NOT true regarding the structure of cellular membranes?
White wool is dependent upon a dominant allele B and black woolupon its recessive b. A sample of Rambouill breed in Idaho gave thefollowing data: 891 white and 9 black. Find the allele frequencies.
Make an equation describe the relationship between DeltaG, equilibrium constant and prevailing concentrations of substrates and products of reactions.
Hemophilia is a sex-linked trait. A normal woman whose father has a hemophilia marries a normal man. What is the chance for their children to have the trait? Give the full explanation - genotypes of all involved.
Assume that for a trait that is determined through a set of two alleles, the observed frequency for homozygous dominant, homozygous recessive, and heterozygous are 0.64.
Mineral, are trace elements, and vitamins, are growth factors, are required in small amounts for many microbes.
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