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Question 1.
The half-life of carbon-14 is 5730 years. A fossil that is 22920years old would have what amount of the normal portion of C-14 toC-12?
Question 2.
The half-life of potassium-40 is 1.3billion years. If a rockspecimen contained 12 milligrams of potassium-40 when it was formedand now contained 3milligrams of potassium-40, How old is therock?
Review the DNA of the Phenylalanine hydroxylase (PAH) gene in a patient with phenylketonuria revealed a mutation in the protein coding region whose forecasted effect would be to replace the amino acid aspartic acid.
Let's assume for this problem that the world is divided into blue-eyed people and brown-eyed people. Let's also assume for the sake of simplicity that there is only one gene responsible for eye color and that the allele for brown eyes.
The E. coli gene lacYencodes a protein called lactose permease, Reversion, Intragenic suppressor, Intergenic suppressor, Missense mutation
q1. 1. a student inherits a recessive phenotype of a particular characteristic. though both the parents are
What is an animal? Include in your answer how animals are differentiated from other life forms. In particular, describe the similarities and differences between volvocine protozoa, members of the Phylum Porifera, and members of the Phylum Cnidaria th..
Granting polluting industries or countries the right to buy and sell emissions permits is a controversial idea. Some argue that the market is the best way to limit pollution, while others argue that trade in permits allows polluting industries to..
In eukaryotes, a gene may contain internal sequences that are removed in the RNA, and therefore do not contribute to the protein sequence. What are theses sequences called and how and when are they deleted?
Describe how Ca2+ levels in the blood are regulated by hormones?
A mutation occurs in the lac repressor protein such that it can no longer bind to allolactose. What effect will this mutation have on expression of proteins of the lac operon in the presence of lactose?
q1 after doing some research discuss what you believe is the most prevalent or important reason birds do not fly at the
assume the population is in hardy weinberg equilibrium.
create a myth and fact sheet about sexual orientation.list and describe at least 7 prominent myths or misconceptions
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