Living Environment: Reproduction & Cell Divisions Review

Front

What is the process of cell division that results in two identical daughter cells?

Back

Mitosis

Front

What structure is formed when homologous chromosomes pair up during meiosis?

Back

Tetrad

Front

What are the processes that contribute to genetic variation in sexually reproducing organisms?

Back

Crossing-over, recombination, segregation, meiosis & fertilization

Front

Which processes are exclusive to sexual reproduction?

Back

Meiosis & fertilization

Front

What is the primary purpose of mitosis?

Back

To produce somatic cells (body cells) for growth & repair or for asexual reproduction of unicellular organisms.

Front

What type of cell division produces gametes?

Back

Meiosis

Front

What is the term for the fusion of sperm and egg?

Back

Fertilization

Front

What is the difference between diploid and haploid cells?

Back

Diploid cells have two sets of chromosomes (2n), while haploid cells have one set of chromosomes (n).

Front

What is crossing-over and when does it occur?

Back

Crossing-over is the exchange of genetic material between homologous chromosomes during prophase I of meiosis.

Front

What is the significance of genetic variation in a population?

Back

Genetic variation increases the chances of survival and adaptation in changing environments.