Four strategies have been proposed to increase the world's food supply in places where populations are underfed

1 answer:

5 0

One is the diversification of food sources. Second is increasing agricultural production by implementing good agricultural practices and adopting contemporary technologies such as Genetically Modified Foods. The third is increased exports to these counties with undefined populations. Fourth is embracing good agricultural land management practices such as reducing land fragmentation/subdivision so as to promote large-scale production.

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According to the cell theory, why is a car not alive?

rosijanka [135]

D. a car is not made up of living cells

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Cell at metaphase of mitosis contains 20 sister chromatids, how many chromosomes will be present in a g1 cell? if a cell at meta

kumpel [21]

Answer:

The correct answer would be 10.

The cell cycle can be divided into four phases namely gap 1 (G₁) phase , synthesis (S) phase, gap 2 (G₂) phase, and mitosis (M) phase.

DNA (deoxyribonuceic acid) content is only replicated and doubled in the S phase. However, the chromosome number remains the same. It can be explained as the number of chromosomes remains the same (2n) but number of chromatids doubles (4n) after S phase.

The number of chromatids restores to 2n in daughter cells after completion of mitosis.

Hence, if number of chromatids in metaphase was 20 i.e. 4n then the number of chromosomes (2n) would be 10.

Hence, 10 chromosomes or 5 pairs of chromosome would be present in the cell during its G₁ phase.