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Genetics

What would be the base sequence of RNA after transcription occurs?

Complete all three parts and answer all questions. Remember to turn in Punnett Square for Part 2. Part 1: Genetics - From Genes to Proteins, Mutations (Chapter 10) Overview: Genetic information in DNA is transcribed to RNA and then translated into the amino acid sequence of a Protein. A) Step 1 - Transcription: During

Genetics-from genes to proteins

Biotechnology allows us to use living organisms or their processes for human needs or purposes. Currently, this topic includes such general examples as cloning, stem cells (adult, umbilical cord, and embryonic), DNA fingerprinting, biological warfare, bioremediation, genetically modified organisms, vaccines, and transgenic plant

Determine the linear sequence of these three genes

In Drosophila, a cross was made between females expressing the three X-linked recessive traits: scute (sc) bristles, sable (s) body and vermillion (v) eyes, and wild-type (+) males. In the F1, all females were wild-type, while all males expressed all three recessive traits. The cross was carried to the F2 generation and 1000 off

Determine mapping distance

An organism of genotype AaBb is testcrossed. 1000 offspring are counted and the numbers in the four genotypic categories are as follows: AaBb 450 Aabb 42 aaBb 38 aabb 470 1.What can you say about these genes and what is the distance in map unit between 2 genes? 2.Rf between 2 genes is 0.5. What are 2 likely loc

Using Chi-squared

Does the following agree with Mendel's Law of Segregation, (in respect to alleles for the gene of fur color)? Also, calculate the Chi-Square and explain the purpose of the calculation. A breeder crosses white dogs with black dogs. F1 generation were all black dogs. The progeny were crossed to produce a F2 generation of; 71 wh

Meiosis - Variabilty and Fertilization

Eukayotic cells can divide by mitosis or meiosis. In humans, mitosis produces new cells for growth and repair; meiosis produes sex cells (gametes) called sperm and eggs. How do both meiosis and sexual reproduction produce offspring that differ genetically form the parents? Explain which steps in meiosis increase variabilit

Punnett Square for Cystic fibrosis

When doing the Punnett Square, C= normal allele; and c= allele for cystic fibrosis. Based on the Punnett square, calculate changes (percentage) for having a healthy child (not a carrier), a child that is a carrier for the cystic fibrosis trait and a child with cystic fibrosis.

What are the major differences between mitosis and meiosis?

1. What are the major differences between mitosis and meiosis? Why is it necessary to have a meiotic cell division? Explain the difference between the C value and the n number. What phase of the cell cycle does DNA replication occur in? 2. How many chromosomes are found in a normal human cell? Define the terms "auto

Color Blindness

If color is the interpretation by the brain of a wavelength of light, then where does the issue of colorblindness come in? Is it a problem due to the cones being defective, or is it a processing problem with the brain?

Nature vs Nurture

In Web searching (on Google, or Hotbot, or some such search engine) on the topic "Nature vs. Nurture.? find an interesting discussion or article related to it. Share the article and URL and a brief explanation of the general points of the article or debate in an outline form or as bullet points. Finally, share your own perspecti

Regular markov chains

Suppose a gene in a chromosome is of type A or type B. Assume that the probability that a gene of type A will mutate to type B in one generation is 10^-4 and that a gene of type B will mutate to type A is 10^-6. (A) What is the transition matrix? (B) After how many generations, what is the probability that the gene will be o

Complex traits

Explain the various ways heredity and environment may combine to influence complex traits.

Offspring That Differ Genetically From Parents

How Do Meiosis And Sexual Reproduction (fertilization) Produce Offspring That Differ Genetically From The Parents? Talk About Meiosis And Fertilization. I think I understand this part of the question but I am trying to do research on the second part below about human disorders that are inherited by I do not understand the sec

Autosomal Recessive Disease

Using a Punnett Square, show how you would determine the probability that couple who were both carriers of an automsomal recessive disorder would have a child that would exihibit that disorder. Be sure that you define the letters that you use to present the alleles.

Mendelian Genetics Problem Set is solved.

1. A cattle rancher discovers that one of his bulls has a great deal of muscle mass but little fat, and wishes to create a pure-breeding stock with that trait. When he breeds the bull with wild-type cows, all of the offspring are wild-type. How can the rancher create his pure stock if the allele for lean muscle is autosomal?

Dominant trait

Unattached earlobes are a dominant trait. If A denotes the allele for unattached earlobes, and a denotes the allele for attached earlobes, what is (are) the possible genotype(s) of a person who has unattached earlobes? Could both parents of a person with unattached earlobes have attached earlobes? Why or why not?

Frame Shift

Frame-shift mutations occur when a nucleotide is accidentally omitted or added to DNA. Would a frame-shift mutation be more harmful if it occurred at the start of a gene or near the end of the gene? Why?

Fruit Fly Genetics

In fruit flies, vestigial wings (v) are recessive to normal wings (V). In a breeding study, 6,000 flies homozygous for vestigial wings mate at random with 4,000 flies homozygous for the normal allele. a. What is the frequency of each genotype in the F1 generation? b. What would the proportion of phenotypes be? c. What is the

Schizophrenia is a myth???

According to Thomas Szasz, the idea of mental illness, including schizophrenia, is a myth. Szasz believes that schizophrenia should be properly regarded as problems of living in a society that mistreats individuals who are different. Discuss the pros and cons of this proposition. Do you believe this assertion? Please provide

Chromosomes, Genes, and DNA

What is relationship among genes, chromosomes, and DNA? How do these entities function in reproduction? What are three examples of abnormalities in genes and chromosomes? What impact do these abnormalities have on development.

X-linked genes and finding genetic map distance

A female heterozygous drosophila melanogaster with the x linked genes of singed bristles (sn), crossveinlesss wings (cv), and vermillion eye colour (v) is testcrossed with a singed, crossveinless, vermillion male and the following progeny were obtained: 1 singed, crossveinless, vermillion 3 2 crossveinless, vermilli

Genetics: Eye color probabilities

Both parents have the brown/blue pair of eyes color genes, and each parent contributes one gene to a child. Assume that if the child has at least one brown gene, that color will dominate and the eyes will be brown. (The actual determination of eye color is somewhat more complicated.) a. List the different possible outcomes

Populations and Gene Pools

Postulate why populations in northern climates have gene pools in which most members have the recessive genotype (bb for blue) for eye color, while populations in Africa and South America more often have gene pools with the dominant genotype (B for brown).