Macronutrients are broken down into what common compound?
What will be an ideal response?
Acetyl CoA
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You are a biologist on a trip to an island in the South Pacific. While there, you are allowed to collect DNA samples from a local species of tortoise that resembles a species seen on a nearby continent
If your DNA analysis also indicates the two species are highly related, you might conclude that this was an example of _______________ through ________. A. allopatric speciation; dispersal B. allopatric speciation; vicariance C. sympatric speciation; dispersal D. sympatric speciation; vicariance
The DNA of two different viruses, A and B, are isolated and the melting point determined as shown here. Which one of the following is a conclusion consistent with the data?
A. Virus A is an animal virus and virus B is a bacterial virus (bacteriophage). B. Virus B is triplex DNA and virus A is duplex DNA. C. Virus B is an RNA-DNA duplex. D. Virus B has a higher percentage of guanine nucleotides compared to virus A. E. Virus A has a greater amount of methylated cytosines than virus B.
Many birds, such as seagulls which rarely drink fresh water, deal with the osmotic stress of taking in
large quantities of salt in their food mainly by
a. active transport of ions into the body through their feet. b. excreting nitrogenous wastes through their kidneys as urea. c. active transport of ions out of the body by chloride cells. d. excreting excess salt through the actions of specialized salt glands in their heads. e. maintaining high levels of urea and trimethylamine oxide in body fluids.
Why is mRNA a good intermediate for translation?
What will be an ideal response?