The fusion of a sperm and an egg is called _____________
Fill in the blank(s) with the appropriate word(s)
Answer: Fertilization
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If a patient is missing B and T cells, what would be absent from the immune response?
A) memory B) lysozymes C) cytokines D) defense against bacteria
Which of the following is not true about histone modification and the enzymes that create them?
A. The enzymes responsible are often part of multiprotein complexes that include transcription factors. B. The enzymes responsible can work with chromatin remodeling complexes to alter specific regions of chromatin in response to environmental signals. C. The modifications can be passed on by epigenetic inheritance. D. The enzymes responsible can create histone variants. E. All of these choices are correct.
What enzyme is responsible for proofreading activities during DNA replication?
a. DNA polymerase b. RNA polymerase c. primase d. telomerase
In a situation with codominant inheritance _____
A. there is no recessive phenotype B. each allele is fully and completely expressed C. the principles of Mendelian inheritance are intact D. independent assortment can predict the genotypes and phenotypes of the offspring E. all of these are true