Using the sequencing results for genomes from each of the kingdoms, it is currently possible
A. to explore genetic differences between species very directly, examining DNA changes.
B. to build, from scratch, complex organisms with trans-kingdom genomes.
C. to sequence and build, from scratch, simple organisms with trans-kingdom genomes.
D. to design humans with a variety of inter-kingdom abilities built into their DNA.
A. to explore genetic differences between species very directly, examining DNA changes.
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During which stage do sister chromatids separate?
a. meiosis II b. meiosis I c. mitosis d. both mitosis and meiosis II
Craig Venter and Claire Fraser are working to create a "minimal organism.". They are starting with Mycoplasma genitalium, a bacterium that has 517 genes. By disabling its genes one at a time, they discovered that 265–350 of them code for essential proteins. The scientists are synthesizing the essential genes and inserting them, one by one, into an engineered cell consisting only of a plasma
membrane and cytoplasm. They want to see how few genes it takes to build a new life form. What properties would such a cell have to exhibit for you to conclude that it was alive? What will be an ideal response?
The somatic senses include all EXCEPT which
one of the following sensations? a. balance b. pain near the body surface c. temperature d. touch e. pressure
If taken within 72 hours of unprotected intercourse, the "morning after" pill should
A) encourage the formation of the corpus luteum. B) increase progesterone secretion from the ovary. C) thicken the cervical mucus. D) reduce sperm motility. E) delay or prevent ovulation.