What is the enzyme used in DNA replication that unwinds the supercoiled, packaged DNA
What will be an ideal response?
topoisomerase
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An example of a phenotypic trait where observation of phenotype can easily identify the genetic variation is:
A. color markings in certain invertebrates. B. human skin color. C. human blood type. D. color markings in certain invertebrates and human blood type. E. human skin color and blood type.
Metagenomics may be useful because
A) it could be used to detect or predict human diseases. B) it will allow for the sequencing of entire bacterial species genomes. C) metagenomes do not change rapidly. D) metagenomes are not responsive to environmental changes.
Which of the following is false about reproductive
system cancers in males? a. Prostate cancer is a leading cause of death in men. b. There are 7,000 cases of testicular cancer diagnosed each year in the Unites States. c. Some individuals who have prostate cancer are unaware of their condition. d. Prostate cancer and testicular cancer produce painful symptoms in their early stages. e. Early treatment of testicular cancer has a high success rate.
If a woman is a carrier for the color blind recessive allele and her husband is normal, what are their chances that their son will be color blind?
A. 100% because the mother is a carrier. B. 50% since the mother is a carrier. C. None since the father is normal. D. None since he will be a carrier like his mother.