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The study of Biology may seem overwhelming at times due to the complexity and diversity of life. However, Biologists utilize some methods intended to improve organization and ease communication about living organisms. One of these is the development of phylogenetic trees. Evidence from many sources indicates that all life on Earth are genetically related. In this discussion board, please include the following: Describe what kinds of evidence are used to construct a phylogenetic tree and, in your own words, what this tree represents. Analyze which evidence provides the most accurate information on which to build a phylogenetic tree. What is the organism Tiktaalik roseae and how has it helped us understand the origins of animal life. Are humans part of this overall description of these relationships? who are the closest relatives to humans? How do we know that?
What is the function of the polymerase chain reaction (PCR) in genetic engineering? To cut DNA into many fragments.To carry DNA into a new cell.To make millions of copies of a specific segment of DNA.
A strain of Neurospora with the genotype.
A man with hemophilia marries a woman whose family has no record of hemophilia. Their first child is a son. The couple is worried that their son may have inherited hemophilia. What are the chances of a hemophilic son.
ATP synthesis by chemiosmosis (electron transport pumping protons across inner membrane) both photosynthesis and respiration take place in double-membrane organelles with own DNA Q: Which is NOT a difference between C3 and C4 plants.
Based on the structure of individual keratin subunits, why would a single point mutation in the alpha-helical region of the monomer result in a defect in the polymer.
Explain the probability that the first child of parents who are heterozygous for both traits will show the achondroplasia however not the Huntington's disorder?
Suppose that P is always completely dominant to any number of p's, and that the locus is close to the centromere. What is an expected ratio of purple:white in the progeny of the next crosses.
Why the parents wake up, other than the children did didn't wake up. A gene for sweat gland production is found on the X chromosome.
How a biologist would explain how ability to run fast evolved in cheetahs, assume their ancestors would only run 20 miles per hour. How various total depurinations in your body each day.
Discuss how everyone is benefitted from a improved understanding of the human anatomy and physiology related to any current issue, particularly those concerning the state of health care that we have heard so much about from the media lately.
State the probability (percentage or fraction) of each of following sets of parents generating the given genotypes within their offspring.
Diploid nuclei of the ascomycete, Neurospora crassa, contain 14 chromosomes. A single diploid cell in an ascus will undergo one round of meiosis, followed in each of daughter cells by one round of mitosis, producing a total of eight ascospores.
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