Answer:
The statements which are correct are:
-85% of the U.S. corn is GMO; modified to be resistant to herbicides.
-Technology now allows us to transfer genes between organisms of different species and even kingdoms.
- Extensive testing has been conducted on GMO-foods to ensure that there will be no adverse allergic reactions or health risks.
Explanation:
GM foods can be described as the food which is genetically modified. In simpler terms, food prepared by the introduction of a foreign gene is termed as genetically modified food.
About 92 percent of the corn produced in the U.S is genetically modified and out of it about 85 percent is genetically modified to be resistant against herbicides.
The use of GM foods was made legal after passing through various tests in the laboratory and being approved by the FDA. Up till now, any food prepared by this method is properly tested and approved By FDA before introducing it into the market.
Answer:
The carbon footprint is a very important means to understand the impact of a person's behavior on global warming. This is why someone who effectively wants to contribute to stopping global warming, at least on an individual scale, needs to measure and keep track of their personal carbon footprint.
Explanation:
Answer:
1 . The stage on the first meiotic division when the homologous chromosomes move to opposite poles but the sister chromatids remain together
: b. Anaphase I
2 . The stage in the second meiotic division where sister chromatids migrate to opposite poles
: c. Anaphase II
3 . A structure on the chromosome that holds a pair of chromatids together during replication
: f. centromere
4 . A double-stranded chromosome following replication attached by a centromere
: d. chromatid
5 . A condition where non-sister chromatid of homologous chromosomes exchange genes
: e. crossing over
6 . The stage in the first meiotic division where the homologous chromosomes line up as a pair
: a. Metaphase I
7 . The stage in the second meiotic division where the chromatid pair lines up at the equator of the cell: g. Metaphase II
Explanation:
DNA replication occurs during the S phase of the interphase of the cell cycle. The replicated DNA molecules are accommodated in two sister chromatids of a chromosome that are held together by a centromere.
During prophase I, the chromatids of a homologous chromosome pair exchange a genetic segment. This process is called crossing over. It generates recombinant chromatids with new combinations of genes.
Metaphase I of meiosis I includes the alignment of homologous pairs of chromosomes at the cell's equator. This is followed by separation and movement of homologous chromosomes to the opposite poles of the cell during anaphase I.
Metaphase II of meiosis II includes the alignment of individual chromosomes, each with two sister chromatids, on the cell's equator. During anaphase II, splitting centromere separates the sister chromatids which then move to the opposite poles of the cell.
