A variation in the pattern of nucleotides that often contributes to genetic anomalies is called a(n) ________.
A. short interspersed nuclear element
B. genetic marker
C. restriction enzyme
D. DNA microarray
Answer: B
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Which of the following is not a mechanism by which viruses cause cancer?
A. An expression of viral proteins results in abnormal expression of genes that regulate cell growth and reproduction. B. They carry a cancer-causing gene into the cell. C. They encode proteins that bind to and inactivate host cell proteins known as tumor suppressor proteins. D. They produce defective interfering particles.
Charles Darwin is best known for developing ________
a. the theory of blending inheritance b. improved varieties of fruits and vegetables c. the chromosome theory of inheritance d. the theory of natural selection
Often in complete dominance, the recessive allele codes for a nonfunctional ________
Fill in the blank(s) with correct word
In addition to opposable thumbs, which is another feature of primates adapted to living in a arboreal environment?
a. claws b. short limbs c. small brains d. stereoscopic vision e. tough epidermal layer