An Astronaut Is Piloting a Spacecraft, Which Is in a Circular

question 88

Essay

An astronaut is piloting a spacecraft, which is in a circular orbit around Earth. A space station is ahead, on the same circular orbit. If he fires his rockets briefly to decrease the forward speed of the rocket, what will happen?

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Definitions:

Chromatid Pairing

The alignment of two sister chromatids during cell division, allowing for accurate DNA replication and segregation.

Telophase

The last stage of mitosis and of meiosis I and II when, having reached the poles, chromosomes become decondensed, and a nuclear envelope forms around each group.

Mitosis

The division of the cell nucleus resulting in two daughter nuclei, each with the same number of chromosomes as the parent nucleus; mitosis consists of prophase, prometaphase, metaphase, anaphase, and telophase. Cytokinesis usually overlaps the telophase stage.

Homologous Chromosomes

Pairs of chromosomes in a diploid organism that have the same gene sequence, inherited from each parent, and pair up during meiosis.