Ruminant animals have symbiotic fungi that
A. produce natural antibiotics.
B. infect milk-producing glands, fermenting the milk.
C. digest cellulose and lignin.
D. produce toxins in muscle tissue.
Answer: C
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You have a sequence of DNA with a site on which the restriction enzyme EcoRI will act. EcoRI recognizes the sequence below and cuts each strand at the locations indicated by the arrows. A section of normal DNA is shown here
The SNP shown below the normal allele is associated with a higher risk of developing high blood pressure (hypertension). You amplify a cardiology patient's DNA and digest it with EcoRI (Question 15.3.2 shows where EcoRI acts). Which lane in the gel below represents a sample from an individual heterozygous for this SNP? Normal allele: 5' ATTCGCGGAATTCTGG 3' 3' TAAGCGCCTTAAGACC 5' Allele associated with hypertension: 5'ATTCGCGGGATTCTGG 3' 3'TAAGCGCCCTAAGACC 5' What will be an ideal response?
The organisms associated with patches of floating ocean vegetation would be an example of:
a. random dispersion b. aggregated distribution c. uniform dispersion d. density-dependent distribution e. clumped dispersion
What is the first step in the production of a siRNA?
A. infection with a virus B. cleavage to form a short double-stranded RNA C. design of an experimental treatment D. transcription from a nuclear gene E. export of the pre-miRNA from the nucleus
The louder a pitch, the more the basilar membrane vibrates.
Answer the following statement true (T) or false (F)