In what stage of a pregnancy are drugs used to
induce an abortion?
a. the first nine weeks
b. the first twelve weeks
c. the first 24 weeks
d. up until the 30th week
e. throughout the entire pregnancy
A
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Why did scientists turn to genetic engineering for rice to create resistance to blight?
a. The bacteria causing blight cannot be identified. b. Efforts to cross-breed crop rice with blight-resistant rice produced rice unsuitable as a food source. c. It is the cheapest and easiest way to produce blight-resistant rice. d. Almost of the crop rice planted is lost each year to blight. e. It provided the funding necessary to sequence the rice genome.
Restriction endonucleases are obtained from various species of bacteria.
Answer the following statement true (T) or false (F)
If it takes 40 minutes to replicate the entire E. coli chromosome, how can the cell divide as quickly as every 20 minutes?
What will be an ideal response?
Meiosis I produces ________, and meiosis II produces ________ cells.
A. two haploid, 4 haploid B. two somatic, two gametic C. two haploid, two haploid D. two diploid, 4 haploid E. two diploid, two haploid